Improve geo error handling

Cargo.lock

@@ -2623,6 +2623,7 @@ dependencies = [
  "meilisearch-types",
  "memmap2",
  "page_size",
+ "raw-collections",
  "rayon",
  "roaring",
  "serde",
@@ -3538,6 +3539,7 @@ version = "1.11.0"
 dependencies = [
  "actix-web",
  "anyhow",
+ "bumpalo",
  "convert_case 0.6.0",
  "csv",
  "deserr",
@@ -3550,6 +3552,7 @@ dependencies = [
  "meili-snap",
  "memmap2",
  "milli",
+ "raw-collections",
  "roaring",
  "serde",
  "serde-cs",
@@ -3661,6 +3664,7 @@ dependencies = [
  "time",
  "tokenizers",
  "tracing",
+ "uell",
  "ureq",
  "url",
  "uuid",
@@ -5789,6 +5793,15 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed646292ffc8188ef8ea4d1e0e0150fb15a5c2e12ad9b8fc191ae7a8a7f3c4b9"
 
+[[package]]
+name = "uell"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40de5982e28612e20330e77d81f1559b74f66caf3c7fc10b19ada4843f4b4fd7"
+dependencies = [
+ "bumpalo",
+]
+
 [[package]]
 name = "unescaper"
 version = "0.1.5"

crates/index-scheduler/Cargo.toml

@@ -22,6 +22,7 @@ flate2 = "1.0.30"
 meilisearch-auth = { path = "../meilisearch-auth" }
 meilisearch-types = { path = "../meilisearch-types" }
 page_size = "0.6.0"
+raw-collections = { git = "https://github.com/dureuill/raw-collections.git", version = "0.1.0" }
 rayon = "1.10.0"
 roaring = { version = "0.10.6", features = ["serde"] }
 serde = { version = "1.0.204", features = ["derive"] }

crates/index-scheduler/src/batch.rs

@@ -43,6 +43,7 @@ use meilisearch_types::milli::{self, Filter};
 use meilisearch_types::settings::{apply_settings_to_builder, Settings, Unchecked};
 use meilisearch_types::tasks::{Details, IndexSwap, Kind, KindWithContent, Status, Task};
 use meilisearch_types::{compression, Index, VERSION_FILE_NAME};
+use raw_collections::RawMap;
 use roaring::RoaringBitmap;
 use time::macros::format_description;
 use time::OffsetDateTime;
@@ -1318,7 +1319,12 @@ impl IndexScheduler {
                     index,
                     &mut new_fields_ids_map,
                     primary_key.as_deref(),
-                    first_document.as_ref(),
+                    first_document
+                        .map(|raw| RawMap::from_raw_value(raw, &indexer_alloc))
+                        .transpose()
+                        .map_err(|error| {
+                            milli::Error::UserError(milli::UserError::SerdeJson(error))
+                        })?,
                 )?
                 .map_err(milli::Error::from)?;
 

crates/index-scheduler/src/insta_snapshot.rs

@@ -148,7 +148,6 @@ pub fn snapshot_task(task: &Task) -> String {
         enqueued_at: _,
         started_at: _,
         finished_at: _,
-        progress: _,
         error,
         canceled_by,
         details,

crates/index-scheduler/src/lib.rs

@@ -978,12 +978,7 @@ impl IndexScheduler {
             Ok((
                 ret.map(|task| {
                     if processing.contains(task.uid) {
-                        Task {
+                        Task { status: Status::Processing, started_at: Some(started_at), ..task }
-                            status: Status::Processing,
-                            progress: progress.clone(),
-                            started_at: Some(started_at),
-                            ..task
-                        }
                     } else {
                         task
                     }
@@ -1025,7 +1020,6 @@ impl IndexScheduler {
             enqueued_at: OffsetDateTime::now_utc(),
             started_at: None,
             finished_at: None,
-            progress: None,
             error: None,
             canceled_by: None,
             details: kind.default_details(),
@@ -1606,8 +1600,6 @@ impl<'a> Dump<'a> {
             enqueued_at: task.enqueued_at,
             started_at: task.started_at,
             finished_at: task.finished_at,
-            /// FIXME: should we update dump to contain progress information? 🤔
-            progress: None,
             error: task.error,
             canceled_by: task.canceled_by,
             details: task.details,

crates/index-scheduler/src/snapshots/lib.rs/import_vectors/Intel to kefir.snap

@@ -1,5 +1,5 @@
 ---
-source: index-scheduler/src/lib.rs
+source: crates/index-scheduler/src/lib.rs
 ---
 ### Autobatching Enabled = true
 ### Processing Tasks:
@@ -22,7 +22,7 @@ succeeded [0,1,]
 doggos [0,1,2,]
 ----------------------------------------------------------------------
 ### Index Mapper:
-doggos: { number_of_documents: 1, field_distribution: {"_vectors": 1, "breed": 1, "doggo": 1, "id": 1} }
+doggos: { number_of_documents: 1, field_distribution: {"breed": 1, "doggo": 1, "id": 1} }
 
 ----------------------------------------------------------------------
 ### Canceled By:

crates/index-scheduler/src/snapshots/lib.rs/import_vectors/adding Intel succeeds.snap

@@ -1,5 +1,5 @@
 ---
-source: index-scheduler/src/lib.rs
+source: crates/index-scheduler/src/lib.rs
 ---
 ### Autobatching Enabled = true
 ### Processing Tasks:
@@ -21,7 +21,7 @@ succeeded [0,1,]
 doggos [0,1,]
 ----------------------------------------------------------------------
 ### Index Mapper:
-doggos: { number_of_documents: 1, field_distribution: {"_vectors": 1, "breed": 1, "doggo": 1, "id": 1} }
+doggos: { number_of_documents: 1, field_distribution: {"breed": 1, "doggo": 1, "id": 1} }
 
 ----------------------------------------------------------------------
 ### Canceled By:

crates/index-scheduler/src/utils.rs

@@ -345,8 +345,6 @@ impl IndexScheduler {
                 enqueued_at,
                 started_at,
                 finished_at,
-                /// FIXME: assert something here? ask tamo 🤔
-                    progress: _,
                 error: _,
                 canceled_by,
                 details,

crates/meilisearch-types/Cargo.toml

@@ -13,6 +13,7 @@ license.workspace = true
 [dependencies]
 actix-web = { version = "4.8.0", default-features = false }
 anyhow = "1.0.86"
+bumpalo = "3.16.0"
 convert_case = "0.6.0"
 csv = "1.3.0"
 deserr = { version = "0.6.2", features = ["actix-web"] }
@@ -23,6 +24,7 @@ flate2 = "1.0.30"
 fst = "0.4.7"
 memmap2 = "0.9.4"
 milli = { path = "../milli" }
+raw-collections = { git = "https://github.com/dureuill/raw-collections.git", version = "0.1.0" }
 roaring = { version = "0.10.6", features = ["serde"] }
 serde = { version = "1.0.204", features = ["derive"] }
 serde-cs = "0.2.4"
@@ -70,4 +72,3 @@ swedish-recomposition = ["milli/swedish-recomposition"]
 german = ["milli/german"]
 # allow turkish normalization
 turkish = ["milli/turkish"]
-

crates/meilisearch-types/src/document_formats.rs

@@ -3,13 +3,16 @@ use std::fs::File;
 use std::io::{self, BufWriter};
 use std::marker::PhantomData;
 
+use bumpalo::Bump;
 use memmap2::Mmap;
 use milli::documents::Error;
 use milli::update::new::TopLevelMap;
 use milli::Object;
+use raw_collections::RawMap;
 use serde::de::{SeqAccess, Visitor};
 use serde::{Deserialize, Deserializer};
 use serde_json::error::Category;
+use serde_json::value::RawValue;
 use serde_json::{to_writer, Map, Value};
 
 use crate::error::{Code, ErrorCode};
@@ -213,10 +216,15 @@ pub fn read_json(input: &File, output: impl io::Write) -> Result<u64> {
     // We memory map to be able to deserailize into a TopLevelMap<'pl> that
     // does not allocate when possible and only materialize the first/top level.
     let input = unsafe { Mmap::map(input).map_err(DocumentFormatError::Io)? };
+    let mut doc_alloc = Bump::with_capacity(1024 * 1024 * 1024); // 1MiB
 
     let mut out = BufWriter::new(output);
     let mut deserializer = serde_json::Deserializer::from_slice(&input);
-    let count = match array_each(&mut deserializer, |obj: TopLevelMap| to_writer(&mut out, &obj)) {
+    let count = match array_each(&mut deserializer, |obj: &RawValue| {
+        doc_alloc.reset();
+        let map = RawMap::from_raw_value(obj, &doc_alloc)?;
+        to_writer(&mut out, &map)
+    }) {
         // The json data has been deserialized and does not need to be processed again.
         // The data has been transferred to the writer during the deserialization process.
         Ok(Ok(count)) => count,

crates/meilisearch-types/src/task_view.rs

@@ -4,9 +4,7 @@ use time::{Duration, OffsetDateTime};
 
 use crate::error::ResponseError;
 use crate::settings::{Settings, Unchecked};
-use crate::tasks::{
+use crate::tasks::{serialize_duration, Details, IndexSwap, Kind, Status, Task, TaskId};
-    serialize_duration, Details, IndexSwap, Kind, Status, Task, TaskId, TaskProgress,
-};
 
 #[derive(Debug, Clone, PartialEq, Eq, Serialize)]
 #[serde(rename_all = "camelCase")]
@@ -29,8 +27,6 @@ pub struct TaskView {
     pub started_at: Option<OffsetDateTime>,
     #[serde(with = "time::serde::rfc3339::option", default)]
     pub finished_at: Option<OffsetDateTime>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub progress: Option<TaskProgress>,
 }
 
 impl TaskView {
@@ -47,7 +43,6 @@ impl TaskView {
             enqueued_at: task.enqueued_at,
             started_at: task.started_at,
             finished_at: task.finished_at,
-            progress: task.progress.clone(),
         }
     }
 }

crates/meilisearch-types/src/tasks.rs

@@ -31,8 +31,6 @@ pub struct Task {
     #[serde(with = "time::serde::rfc3339::option")]
     pub finished_at: Option<OffsetDateTime>,
 
-    pub progress: Option<TaskProgress>,
-
     pub error: Option<ResponseError>,
     pub canceled_by: Option<TaskId>,
     pub details: Option<Details>,

crates/meilisearch/tests/documents/add_documents.rs

@@ -1335,7 +1335,6 @@ async fn error_add_documents_missing_document_id() {
 }
 
 #[actix_rt::test]
-#[should_panic]
 async fn error_document_field_limit_reached_in_one_document() {
     let server = Server::new().await;
     let index = server.index("test");
@@ -1352,7 +1351,7 @@ async fn error_document_field_limit_reached_in_one_document() {
     let documents = json!([big_object]);
 
     let (response, code) = index.update_documents(documents, Some("id")).await;
-    snapshot!(code, @"500 Internal Server Error");
+    snapshot!(code, @"202 Accepted");
 
     let response = index.wait_task(response.uid()).await;
     snapshot!(code, @"202 Accepted");
@@ -1360,16 +1359,21 @@ async fn error_document_field_limit_reached_in_one_document() {
     snapshot!(response,
         @r###"
     {
-      "uid": 1,
+      "uid": "[uid]",
       "indexUid": "test",
-      "status": "succeeded",
+      "status": "failed",
       "type": "documentAdditionOrUpdate",
       "canceledBy": null,
       "details": {
         "receivedDocuments": 1,
-        "indexedDocuments": 1
+        "indexedDocuments": 0
+      },
+      "error": {
+        "message": "A document cannot contain more than 65,535 fields.",
+        "code": "max_fields_limit_exceeded",
+        "type": "invalid_request",
+        "link": "https://docs.meilisearch.com/errors#max_fields_limit_exceeded"
       },
-      "error": null,
       "duration": "[duration]",
       "enqueuedAt": "[date]",
       "startedAt": "[date]",
@@ -1660,7 +1664,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "The `_geo` field in the document with the id: `11` is not an object. Was expecting an object with the `_geo.lat` and `_geo.lng` fields but instead got `\"foobar\"`.",
+        "message": "The `_geo` field in the document with the id: `\"11\"` is not an object. Was expecting an object with the `_geo.lat` and `_geo.lng` fields but instead got `\"foobar\"`.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -1697,7 +1701,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not find latitude nor longitude in the document with the id: `11`. Was expecting `_geo.lat` and `_geo.lng` fields.",
+        "message": "Could not find latitude nor longitude in the document with the id: `\"11\"`. Was expecting `_geo.lat` and `_geo.lng` fields.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -1734,7 +1738,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not find latitude nor longitude in the document with the id: `11`. Was expecting `_geo.lat` and `_geo.lng` fields.",
+        "message": "Could not find latitude nor longitude in the document with the id: `\"11\"`. Was expecting `_geo.lat` and `_geo.lng` fields.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -1771,7 +1775,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not find longitude in the document with the id: `11`. Was expecting a `_geo.lng` field.",
+        "message": "Could not find longitude in the document with the id: `\"11\"`. Was expecting a `_geo.lng` field.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -1808,7 +1812,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not find latitude in the document with the id: `11`. Was expecting a `_geo.lat` field.",
+        "message": "Could not find latitude in the document with the id: `\"11\"`. Was expecting a `_geo.lat` field.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -1845,7 +1849,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not find longitude in the document with the id: `11`. Was expecting a `_geo.lng` field.",
+        "message": "Could not find longitude in the document with the id: `\"11\"`. Was expecting a `_geo.lng` field.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -1882,7 +1886,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not find latitude in the document with the id: `11`. Was expecting a `_geo.lat` field.",
+        "message": "Could not find latitude in the document with the id: `\"11\"`. Was expecting a `_geo.lat` field.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -1919,7 +1923,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not parse latitude nor longitude in the document with the id: `11`. Was expecting finite numbers but instead got `false` and `true`.",
+        "message": "Could not parse latitude nor longitude in the document with the id: `\"11\"`. Was expecting finite numbers but instead got `false` and `true`.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -1956,7 +1960,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not find longitude in the document with the id: `11`. Was expecting a `_geo.lng` field.",
+        "message": "Could not find longitude in the document with the id: `\"11\"`. Was expecting a `_geo.lng` field.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -1993,7 +1997,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not find latitude in the document with the id: `11`. Was expecting a `_geo.lat` field.",
+        "message": "Could not find latitude in the document with the id: `\"11\"`. Was expecting a `_geo.lat` field.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -2030,7 +2034,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not parse latitude nor longitude in the document with the id: `11`. Was expecting finite numbers but instead got `\"doggo\"` and `\"doggo\"`.",
+        "message": "Could not parse latitude nor longitude in the document with the id: `\"11\"`. Was expecting finite numbers but instead got `\"doggo\"` and `\"doggo\"`.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -2067,7 +2071,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "The `_geo` field in the document with the id: `11` contains the following unexpected fields: `{\"doggo\":\"are the best\"}`.",
+        "message": "The `_geo` field in the document with the id: `\"11\"` contains the following unexpected fields: `{\"doggo\":\"are the best\"}`.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -2105,7 +2109,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not parse longitude in the document with the id: `12`. Was expecting a finite number but instead got `null`.",
+        "message": "Could not parse longitude in the document with the id: `\"12\"`. Was expecting a finite number but instead got `null`.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -2141,7 +2145,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not parse latitude in the document with the id: `12`. Was expecting a finite number but instead got `null`.",
+        "message": "Could not parse latitude in the document with the id: `\"12\"`. Was expecting a finite number but instead got `null`.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -2177,7 +2181,7 @@ async fn add_documents_invalid_geo_field() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Could not parse latitude nor longitude in the document with the id: `13`. Was expecting finite numbers but instead got `null` and `null`.",
+        "message": "Could not parse latitude nor longitude in the document with the id: `\"13\"`. Was expecting finite numbers but instead got `null` and `null`.",
         "code": "invalid_document_geo_field",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_document_geo_field"
@@ -2197,7 +2201,7 @@ async fn add_invalid_geo_and_then_settings() {
     let index = server.index("test");
     index.create(Some("id")).await;
 
-    // _geo is not an object
+    // _geo is not a correct object
     let documents = json!([
         {
             "id": "11",
@@ -2226,7 +2230,7 @@ async fn add_invalid_geo_and_then_settings() {
     }
     "###);
 
-    let (ret, code) = index.update_settings(json!({"sortableAttributes": ["_geo"]})).await;
+    let (ret, code) = index.update_settings(json!({ "sortableAttributes": ["_geo"] })).await;
     snapshot!(code, @"202 Accepted");
     let ret = index.wait_task(ret.uid()).await;
     snapshot!(ret, @r###"

crates/meilisearch/tests/search/mod.rs

@@ -750,9 +750,9 @@ async fn test_score_details() {
                     ],
                     "_vectors": {
                       "manual": [
-                        -100.0,
+                        -100,
-                        231.0,
+                        231,
-                        32.0
+                        32
                       ]
                     },
                     "_rankingScoreDetails": {
@@ -1543,9 +1543,9 @@ async fn simple_search_with_strange_synonyms() {
                 ],
                 "_vectors": {
                   "manual": [
-                    -100.0,
+                    -100,
-                    231.0,
+                    231,
-                    32.0
+                    32
                   ]
                 }
               }
@@ -1568,9 +1568,9 @@ async fn simple_search_with_strange_synonyms() {
                 ],
                 "_vectors": {
                   "manual": [
-                    -100.0,
+                    -100,
-                    231.0,
+                    231,
-                    32.0
+                    32
                   ]
                 }
               }
@@ -1593,9 +1593,9 @@ async fn simple_search_with_strange_synonyms() {
                 ],
                 "_vectors": {
                   "manual": [
-                    -100.0,
+                    -100,
-                    231.0,
+                    231,
-                    32.0
+                    32
                   ]
                 }
               }

crates/meilisearch/tests/search/multi.rs

@@ -113,9 +113,9 @@ async fn simple_search_single_index() {
             ],
             "_vectors": {
               "manual": [
-                -100.0,
+                -100,
-                340.0,
+                340,
-                90.0
+                90
               ]
             }
           }
@@ -138,9 +138,9 @@ async fn simple_search_single_index() {
             ],
             "_vectors": {
               "manual": [
-                1.0,
+                1,
-                2.0,
+                2,
-                54.0
+                54
               ]
             }
           }
@@ -182,9 +182,9 @@ async fn federation_single_search_single_index() {
           ],
           "_vectors": {
             "manual": [
-              -100.0,
+              -100,
-              340.0,
+              340,
-              90.0
+              90
             ]
           },
           "_federation": {
@@ -305,9 +305,9 @@ async fn federation_two_search_single_index() {
           ],
           "_vectors": {
             "manual": [
-              -100.0,
+              -100,
-              340.0,
+              340,
-              90.0
+              90
             ]
           },
           "_federation": {
@@ -325,9 +325,9 @@ async fn federation_two_search_single_index() {
           ],
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              54.0
+              54
             ]
           },
           "_federation": {
@@ -480,9 +480,9 @@ async fn simple_search_two_indexes() {
             ],
             "_vectors": {
               "manual": [
-                -100.0,
+                -100,
-                340.0,
+                340,
-                90.0
+                90
               ]
             }
           }
@@ -513,9 +513,9 @@ async fn simple_search_two_indexes() {
             "cattos": "pésti",
             "_vectors": {
               "manual": [
-                1.0,
+                1,
-                2.0,
+                2,
-                3.0
+                3
               ]
             }
           },
@@ -535,9 +535,9 @@ async fn simple_search_two_indexes() {
             ],
             "_vectors": {
               "manual": [
-                1.0,
+                1,
-                2.0,
+                2,
-                54.0
+                54
               ]
             }
           }
@@ -1393,9 +1393,9 @@ async fn federation_sort_same_indexes_same_criterion_same_direction() {
           "cattos": "pésti",
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              3.0
+              3
             ]
           },
           "_federation": {
@@ -1414,9 +1414,9 @@ async fn federation_sort_same_indexes_same_criterion_same_direction() {
           ],
           "_vectors": {
             "manual": [
-              10.0,
+              10,
-              23.0,
+              23,
-              32.0
+              32
             ]
           },
           "_federation": {
@@ -1442,9 +1442,9 @@ async fn federation_sort_same_indexes_same_criterion_same_direction() {
           ],
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              54.0
+              54
             ]
           },
           "_federation": {
@@ -1474,9 +1474,9 @@ async fn federation_sort_same_indexes_same_criterion_same_direction() {
           ],
           "_vectors": {
             "manual": [
-              10.0,
+              10,
-              23.0,
+              23,
-              32.0
+              32
             ]
           },
           "_federation": {
@@ -1716,9 +1716,9 @@ async fn federation_sort_same_indexes_different_criterion_same_direction() {
           "cattos": "pésti",
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              3.0
+              3
             ]
           },
           "_federation": {
@@ -1748,9 +1748,9 @@ async fn federation_sort_same_indexes_different_criterion_same_direction() {
           ],
           "_vectors": {
             "manual": [
-              10.0,
+              10,
-              23.0,
+              23,
-              32.0
+              32
             ]
           },
           "_federation": {
@@ -1769,9 +1769,9 @@ async fn federation_sort_same_indexes_different_criterion_same_direction() {
           ],
           "_vectors": {
             "manual": [
-              10.0,
+              10,
-              23.0,
+              23,
-              32.0
+              32
             ]
           },
           "_federation": {
@@ -1797,9 +1797,9 @@ async fn federation_sort_same_indexes_different_criterion_same_direction() {
           ],
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              54.0
+              54
             ]
           },
           "_federation": {
@@ -2103,9 +2103,9 @@ async fn federation_sort_different_indexes_same_criterion_same_direction() {
           ],
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              54.0
+              54
             ]
           },
           "_federation": {
@@ -2124,9 +2124,9 @@ async fn federation_sort_different_indexes_same_criterion_same_direction() {
           ],
           "_vectors": {
             "manual": [
-              10.0,
+              10,
-              -23.0,
+              -23,
-              32.0
+              32
             ]
           },
           "_federation": {
@@ -2145,9 +2145,9 @@ async fn federation_sort_different_indexes_same_criterion_same_direction() {
           ],
           "_vectors": {
             "manual": [
-              -100.0,
+              -100,
-              340.0,
+              340,
-              90.0
+              90
             ]
           },
           "_federation": {
@@ -2166,9 +2166,9 @@ async fn federation_sort_different_indexes_same_criterion_same_direction() {
           ],
           "_vectors": {
             "manual": [
-              -100.0,
+              -100,
-              231.0,
+              231,
-              32.0
+              32
             ]
           },
           "_federation": {
@@ -2187,9 +2187,9 @@ async fn federation_sort_different_indexes_same_criterion_same_direction() {
           ],
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              3.0
+              3
             ]
           },
           "_federation": {
@@ -2228,9 +2228,9 @@ async fn federation_sort_different_indexes_same_criterion_same_direction() {
           ],
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              54.0
+              54
             ]
           },
           "_federation": {
@@ -2415,9 +2415,9 @@ async fn federation_sort_different_ranking_rules() {
           ],
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              54.0
+              54
             ]
           },
           "_federation": {
@@ -2436,9 +2436,9 @@ async fn federation_sort_different_ranking_rules() {
           ],
           "_vectors": {
             "manual": [
-              10.0,
+              10,
-              -23.0,
+              -23,
-              32.0
+              32
             ]
           },
           "_federation": {
@@ -2457,9 +2457,9 @@ async fn federation_sort_different_ranking_rules() {
           ],
           "_vectors": {
             "manual": [
-              -100.0,
+              -100,
-              340.0,
+              340,
-              90.0
+              90
             ]
           },
           "_federation": {
@@ -2478,9 +2478,9 @@ async fn federation_sort_different_ranking_rules() {
           ],
           "_vectors": {
             "manual": [
-              -100.0,
+              -100,
-              231.0,
+              231,
-              32.0
+              32
             ]
           },
           "_federation": {
@@ -2499,9 +2499,9 @@ async fn federation_sort_different_ranking_rules() {
           ],
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              3.0
+              3
             ]
           },
           "_federation": {
@@ -2716,9 +2716,9 @@ async fn federation_sort_different_indexes_different_criterion_same_direction()
           ],
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              54.0
+              54
             ]
           },
           "_federation": {
@@ -2757,9 +2757,9 @@ async fn federation_sort_different_indexes_different_criterion_same_direction()
           ],
           "_vectors": {
             "manual": [
-              10.0,
+              10,
-              -23.0,
+              -23,
-              32.0
+              32
             ]
           },
           "_federation": {
@@ -2778,9 +2778,9 @@ async fn federation_sort_different_indexes_different_criterion_same_direction()
           ],
           "_vectors": {
             "manual": [
-              -100.0,
+              -100,
-              340.0,
+              340,
-              90.0
+              90
             ]
           },
           "_federation": {
@@ -2799,9 +2799,9 @@ async fn federation_sort_different_indexes_different_criterion_same_direction()
           ],
           "_vectors": {
             "manual": [
-              -100.0,
+              -100,
-              231.0,
+              231,
-              32.0
+              32
             ]
           },
           "_federation": {
@@ -2820,9 +2820,9 @@ async fn federation_sort_different_indexes_different_criterion_same_direction()
           ],
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              3.0
+              3
             ]
           },
           "_federation": {
@@ -2881,9 +2881,9 @@ async fn federation_sort_different_indexes_different_criterion_same_direction()
           ],
           "_vectors": {
             "manual": [
-              1.0,
+              1,
-              2.0,
+              2,
-              54.0
+              54
             ]
           },
           "_federation": {
@@ -4346,10 +4346,10 @@ async fn federation_vector_two_indexes() {
 
     let (response, code) = server
         .multi_search(json!({"federation": {}, "queries": [
-        {"indexUid" : "vectors-animal", "vector": [1.0, 0.0, 0.5], "hybrid": {"semanticRatio": 1.0, "embedder": "animal"}},
+        {"indexUid" : "vectors-animal", "vector": [1.0, 0.0, 0.5], "hybrid": {"semanticRatio": 1.0, "embedder": "animal"}, "retrieveVectors": true},
         // joyful and energetic first
-        {"indexUid": "vectors-sentiment", "vector": [0.8, 0.6], "hybrid": {"semanticRatio": 1.0, "embedder": "sentiment"}},
+        {"indexUid": "vectors-sentiment", "vector": [0.8, 0.6], "hybrid": {"semanticRatio": 1.0, "embedder": "sentiment"}, "retrieveVectors": true},
-        {"indexUid": "vectors-sentiment", "q": "dog"},
+        {"indexUid": "vectors-sentiment", "q": "dog", "retrieveVectors": true},
         ]}))
         .await;
     snapshot!(code, @"200 OK");
@@ -4364,7 +4364,16 @@ async fn federation_vector_two_indexes() {
               0.8,
               0.09,
               0.8
-            ]
+            ],
+            "sentiment": {
+              "embeddings": [
+                [
+                  0.800000011920929,
+                  0.30000001192092896
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-sentiment",
@@ -4379,7 +4388,17 @@ async fn federation_vector_two_indexes() {
             "sentiment": [
               0.8,
               0.3
-            ]
+            ],
+            "animal": {
+              "embeddings": [
+                [
+                  0.800000011920929,
+                  0.09000000357627869,
+                  0.800000011920929
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-animal",
@@ -4394,7 +4413,17 @@ async fn federation_vector_two_indexes() {
             "sentiment": [
               -1.0,
               0.1
-            ]
+            ],
+            "animal": {
+              "embeddings": [
+                [
+                  0.8500000238418579,
+                  0.019999999552965164,
+                  0.10000000149011612
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-animal",
@@ -4410,7 +4439,16 @@ async fn federation_vector_two_indexes() {
               0.9,
               0.8,
               0.05
-            ]
+            ],
+            "sentiment": {
+              "embeddings": [
+                [
+                  -0.10000000149011612,
+                  0.550000011920929
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-sentiment",
@@ -4426,7 +4464,16 @@ async fn federation_vector_two_indexes() {
               0.85,
               0.02,
               0.1
-            ]
+            ],
+            "sentiment": {
+              "embeddings": [
+                [
+                  -1.0,
+                  0.10000000149011612
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-sentiment",
@@ -4441,7 +4488,17 @@ async fn federation_vector_two_indexes() {
             "sentiment": [
               -0.2,
               0.65
-            ]
+            ],
+            "animal": {
+              "embeddings": [
+                [
+                  0.800000011920929,
+                  0.8999999761581421,
+                  0.5
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-animal",
@@ -4456,7 +4513,17 @@ async fn federation_vector_two_indexes() {
             "sentiment": [
               -0.1,
               0.55
-            ]
+            ],
+            "animal": {
+              "embeddings": [
+                [
+                  0.8999999761581421,
+                  0.800000011920929,
+                  0.05000000074505806
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-animal",
@@ -4472,7 +4539,16 @@ async fn federation_vector_two_indexes() {
               0.8,
               0.9,
               0.5
-            ]
+            ],
+            "sentiment": {
+              "embeddings": [
+                [
+                  -0.20000000298023224,
+                  0.6499999761581421
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-sentiment",
@@ -4492,8 +4568,8 @@ async fn federation_vector_two_indexes() {
     // hybrid search, distinct embedder
     let (response, code) = server
         .multi_search(json!({"federation": {}, "queries": [
-          {"indexUid" : "vectors-animal", "vector": [1.0, 0.0, 0.5], "hybrid": {"semanticRatio": 1.0, "embedder": "animal"}, "showRankingScore": true},
+          {"indexUid" : "vectors-animal", "vector": [1.0, 0.0, 0.5], "hybrid": {"semanticRatio": 1.0, "embedder": "animal"}, "showRankingScore": true, "retrieveVectors": true},
-          {"indexUid": "vectors-sentiment", "vector": [-1, 0.6], "q": "beagle", "hybrid": {"semanticRatio": 1.0, "embedder": "sentiment"}, "showRankingScore": true},
+          {"indexUid": "vectors-sentiment", "vector": [-1, 0.6], "q": "beagle", "hybrid": {"semanticRatio": 1.0, "embedder": "sentiment"}, "showRankingScore": true, "retrieveVectors": true,},
         ]}))
         .await;
     snapshot!(code, @"200 OK");
@@ -4507,7 +4583,17 @@ async fn federation_vector_two_indexes() {
             "sentiment": [
               0.8,
               0.3
-            ]
+            ],
+            "animal": {
+              "embeddings": [
+                [
+                  0.800000011920929,
+                  0.09000000357627869,
+                  0.800000011920929
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-animal",
@@ -4523,7 +4609,17 @@ async fn federation_vector_two_indexes() {
             "sentiment": [
               -1.0,
               0.1
-            ]
+            ],
+            "animal": {
+              "embeddings": [
+                [
+                  0.8500000238418579,
+                  0.019999999552965164,
+                  0.10000000149011612
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-animal",
@@ -4540,7 +4636,16 @@ async fn federation_vector_two_indexes() {
               0.85,
               0.02,
               0.1
-            ]
+            ],
+            "sentiment": {
+              "embeddings": [
+                [
+                  -1.0,
+                  0.10000000149011612
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-sentiment",
@@ -4557,7 +4662,16 @@ async fn federation_vector_two_indexes() {
               0.8,
               0.9,
               0.5
-            ]
+            ],
+            "sentiment": {
+              "embeddings": [
+                [
+                  -0.20000000298023224,
+                  0.6499999761581421
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-sentiment",
@@ -4573,7 +4687,17 @@ async fn federation_vector_two_indexes() {
             "sentiment": [
               -0.2,
               0.65
-            ]
+            ],
+            "animal": {
+              "embeddings": [
+                [
+                  0.800000011920929,
+                  0.8999999761581421,
+                  0.5
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-animal",
@@ -4589,7 +4713,17 @@ async fn federation_vector_two_indexes() {
             "sentiment": [
               -0.1,
               0.55
-            ]
+            ],
+            "animal": {
+              "embeddings": [
+                [
+                  0.8999999761581421,
+                  0.800000011920929,
+                  0.05000000074505806
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-animal",
@@ -4606,7 +4740,16 @@ async fn federation_vector_two_indexes() {
               0.9,
               0.8,
               0.05
-            ]
+            ],
+            "sentiment": {
+              "embeddings": [
+                [
+                  -0.10000000149011612,
+                  0.550000011920929
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-sentiment",
@@ -4623,7 +4766,16 @@ async fn federation_vector_two_indexes() {
               0.8,
               0.09,
               0.8
-            ]
+            ],
+            "sentiment": {
+              "embeddings": [
+                [
+                  0.800000011920929,
+                  0.30000001192092896
+                ]
+              ],
+              "regenerate": false
+            }
           },
           "_federation": {
             "indexUid": "vectors-sentiment",

crates/meilisearch/tests/vector/mod.rs

@@ -249,7 +249,7 @@ async fn user_provided_embeddings_error() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Bad embedder configuration in the document with id: `\"0\"`. Missing field `regenerate` inside `.manual`",
+        "message": "Bad embedder configuration in the document with id: `0`. Missing field `._vectors.manual.regenerate`\n  - note: `._vectors.manual` must be an array of floats, an array of arrays of floats, or an object with field `regenerate`",
         "code": "invalid_vectors_type",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_vectors_type"
@@ -278,7 +278,7 @@ async fn user_provided_embeddings_error() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Bad embedder configuration in the document with id: `\"0\"`. Missing field `regenerate` inside `.manual`",
+        "message": "Bad embedder configuration in the document with id: `0`. Missing field `._vectors.manual.regenerate`\n  - note: `._vectors.manual` must be an array of floats, an array of arrays of floats, or an object with field `regenerate`",
         "code": "invalid_vectors_type",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_vectors_type"
@@ -308,7 +308,7 @@ async fn user_provided_embeddings_error() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Bad embedder configuration in the document with id: `\"0\"`. Invalid value type at `.manual.regenerate`: expected a boolean, but found a string: `\"yes please\"`",
+        "message": "Bad embedder configuration in the document with id: `0`. Could not parse `._vectors.manual.regenerate`: invalid type: string \"yes please\", expected a boolean at line 1 column 26",
         "code": "invalid_vectors_type",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_vectors_type"
@@ -320,8 +320,7 @@ async fn user_provided_embeddings_error() {
     }
     "###);
 
-    let documents =
+    let documents = json!({"id": 0, "name": "kefir", "_vectors": { "manual": { "embeddings": true, "regenerate": true }}});
-        json!({"id": 0, "name": "kefir", "_vectors": { "manual": { "embeddings": true }}});
     let (value, code) = index.add_documents(documents, None).await;
     snapshot!(code, @"202 Accepted");
     let task = index.wait_task(value.uid()).await;
@@ -337,7 +336,7 @@ async fn user_provided_embeddings_error() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Bad embedder configuration in the document with id: `\"0\"`. Invalid value type at `.manual.embeddings`: expected null or an array, but found a boolean: `true`",
+        "message": "Bad embedder configuration in the document with id: `0`. Invalid value type at `._vectors.manual.embeddings`: expected null or an array, but found a boolean: `true`",
         "code": "invalid_vectors_type",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_vectors_type"
@@ -349,8 +348,7 @@ async fn user_provided_embeddings_error() {
     }
     "###);
 
-    let documents =
+    let documents = json!({"id": 0, "name": "kefir", "_vectors": { "manual": { "embeddings": [true], "regenerate": true }}});
-        json!({"id": 0, "name": "kefir", "_vectors": { "manual": { "embeddings": [true] }}});
     let (value, code) = index.add_documents(documents, None).await;
     snapshot!(code, @"202 Accepted");
     let task = index.wait_task(value.uid()).await;
@@ -366,7 +364,7 @@ async fn user_provided_embeddings_error() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Bad embedder configuration in the document with id: `\"0\"`. Invalid value type at `.manual.embeddings[0]`: expected a number or an array, but found a boolean: `true`",
+        "message": "Bad embedder configuration in the document with id: `0`. Invalid value type at `._vectors.manual.embeddings[0]`: expected a number or an array, but found a boolean: `true`",
         "code": "invalid_vectors_type",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_vectors_type"
@@ -378,8 +376,7 @@ async fn user_provided_embeddings_error() {
     }
     "###);
 
-    let documents =
+    let documents = json!({"id": 0, "name": "kefir", "_vectors": { "manual": { "embeddings": [[true]], "regenerate": false }}});
-        json!({"id": 0, "name": "kefir", "_vectors": { "manual": { "embeddings": [[true]] }}});
     let (value, code) = index.add_documents(documents, None).await;
     snapshot!(code, @"202 Accepted");
     let task = index.wait_task(value.uid()).await;
@@ -395,7 +392,7 @@ async fn user_provided_embeddings_error() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Bad embedder configuration in the document with id: `\"0\"`. Invalid value type at `.manual.embeddings[0][0]`: expected a number, but found a boolean: `true`",
+        "message": "Bad embedder configuration in the document with id: `0`. Invalid value type at `._vectors.manual.embeddings[0][0]`: expected a number, but found a boolean: `true`",
         "code": "invalid_vectors_type",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_vectors_type"
@@ -436,7 +433,7 @@ async fn user_provided_embeddings_error() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Bad embedder configuration in the document with id: `\"0\"`. Invalid value type at `.manual.embeddings[1]`: expected a number, but found an array: `[0.2,0.3]`",
+        "message": "Bad embedder configuration in the document with id: `0`. Invalid value type at `._vectors.manual.embeddings[1]`: expected a number, but found an array: `[0.2,0.3]`",
         "code": "invalid_vectors_type",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_vectors_type"
@@ -464,7 +461,7 @@ async fn user_provided_embeddings_error() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Bad embedder configuration in the document with id: `\"0\"`. Invalid value type at `.manual.embeddings[1]`: expected an array, but found a number: `0.3`",
+        "message": "Bad embedder configuration in the document with id: `0`. Invalid value type at `._vectors.manual.embeddings[1]`: expected an array, but found a number: `0.3`",
         "code": "invalid_vectors_type",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_vectors_type"
@@ -492,7 +489,7 @@ async fn user_provided_embeddings_error() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "Bad embedder configuration in the document with id: `\"0\"`. Invalid value type at `.manual.embeddings[0][1]`: expected a number, but found a boolean: `true`",
+        "message": "Bad embedder configuration in the document with id: `0`. Invalid value type at `._vectors.manual.embeddings[0][1]`: expected a number, but found a boolean: `true`",
         "code": "invalid_vectors_type",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#invalid_vectors_type"
@@ -532,7 +529,7 @@ async fn user_provided_vectors_error() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "While embedding documents for embedder `manual`: no vectors provided for document \"40\" and at least 4 other document(s)\n- Note: `manual` has `source: userProvided`, so documents must provide embeddings as an array in `_vectors.manual`.\n- Hint: opt-out for a document with `_vectors.manual: null`",
+        "message": "While embedding documents for embedder `manual`: no vectors provided for document `40` and at least 4 other document(s)\n- Note: `manual` has `source: userProvided`, so documents must provide embeddings as an array in `_vectors.manual`.\n- Hint: opt-out for a document with `_vectors.manual: null`",
         "code": "vector_embedding_error",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#vector_embedding_error"
@@ -561,7 +558,7 @@ async fn user_provided_vectors_error() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "While embedding documents for embedder `manual`: no vectors provided for document \"42\"\n- Note: `manual` has `source: userProvided`, so documents must provide embeddings as an array in `_vectors.manual`.\n- Hint: try replacing `_vector` by `_vectors` in 1 document(s).",
+        "message": "While embedding documents for embedder `manual`: no vectors provided for document `42`\n- Note: `manual` has `source: userProvided`, so documents must provide embeddings as an array in `_vectors.manual`.\n- Hint: try replacing `_vector` by `_vectors` in 1 document(s).",
         "code": "vector_embedding_error",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#vector_embedding_error"
@@ -590,7 +587,7 @@ async fn user_provided_vectors_error() {
         "indexedDocuments": 0
       },
       "error": {
-        "message": "While embedding documents for embedder `manual`: no vectors provided for document \"42\"\n- Note: `manual` has `source: userProvided`, so documents must provide embeddings as an array in `_vectors.manual`.\n- Hint: try replacing `_vectors.manaul` by `_vectors.manual` in 1 document(s).",
+        "message": "While embedding documents for embedder `manual`: no vectors provided for document `42`\n- Note: `manual` has `source: userProvided`, so documents must provide embeddings as an array in `_vectors.manual`.\n- Hint: try replacing `_vectors.manaul` by `_vectors.manual` in 1 document(s).",
         "code": "vector_embedding_error",
         "type": "invalid_request",
         "link": "https://docs.meilisearch.com/errors#vector_embedding_error"

crates/meilisearch/tests/vector/rest.rs

@@ -1,5 +1,4 @@
 use std::collections::BTreeMap;
-use std::sync::atomic::{AtomicUsize, Ordering};
 
 use meili_snap::{json_string, snapshot};
 use reqwest::IntoUrl;
@@ -13,13 +12,22 @@ use crate::vector::{get_server_vector, GetAllDocumentsOptions};
 async fn create_mock() -> (MockServer, Value) {
     let mock_server = MockServer::start().await;
 
-    let counter = AtomicUsize::new(0);
+    let text_to_embedding: BTreeMap<_, _> = vec![
+        // text -> embedding
+        ("kefir", [0.0, 0.0, 0.0]),
+        ("intel", [1.0, 1.0, 1.0]),
+    ]
+    // turn into btree
+    .into_iter()
+    .collect();
 
     Mock::given(method("POST"))
         .and(path("/"))
-        .respond_with(move |_req: &Request| {
+        .respond_with(move |req: &Request| {
-            let counter = counter.fetch_add(1, Ordering::Relaxed);
+            let text: String = req.body_json().unwrap();
-            ResponseTemplate::new(200).set_body_json(json!({ "data": vec![counter; 3] }))
+            ResponseTemplate::new(200).set_body_json(
+                json!({ "data": text_to_embedding.get(text.as_str()).unwrap_or(&[99., 99., 99.]) }),
+            )
         })
         .mount(&mock_server)
         .await;
@@ -32,13 +40,14 @@ async fn create_mock() -> (MockServer, Value) {
         "request": "{{text}}",
         "response": {
           "data": "{{embedding}}"
-        }
+        },
+        "documentTemplate": "{{doc.name}}",
     });
 
     (mock_server, embedder_settings)
 }
 
-async fn create_mock_map() -> (MockServer, Value) {
+async fn create_mock_default_template() -> (MockServer, Value) {
     let mock_server = MockServer::start().await;
 
     let text_to_embedding: BTreeMap<_, _> = vec![
@@ -97,7 +106,14 @@ struct SingleResponse {
 async fn create_mock_multiple() -> (MockServer, Value) {
     let mock_server = MockServer::start().await;
 
-    let counter = AtomicUsize::new(0);
+    let text_to_embedding: BTreeMap<_, _> = vec![
+        // text -> embedding
+        ("kefir", [0.0, 0.0, 0.0]),
+        ("intel", [1.0, 1.0, 1.0]),
+    ]
+    // turn into btree
+    .into_iter()
+    .collect();
 
     Mock::given(method("POST"))
         .and(path("/"))
@@ -115,8 +131,11 @@ async fn create_mock_multiple() -> (MockServer, Value) {
                 .input
                 .into_iter()
                 .map(|text| SingleResponse {
+                    embedding: text_to_embedding
+                        .get(text.as_str())
+                        .unwrap_or(&[99., 99., 99.])
+                        .to_vec(),
                     text,
-                    embedding: vec![counter.fetch_add(1, Ordering::Relaxed) as f32; 3],
                 })
                 .collect();
 
@@ -142,7 +161,8 @@ async fn create_mock_multiple() -> (MockServer, Value) {
             },
             "{{..}}"
           ]
-        }
+        },
+        "documentTemplate": "{{doc.name}}"
     });
 
     (mock_server, embedder_settings)
@@ -156,7 +176,14 @@ struct SingleRequest {
 async fn create_mock_single_response_in_array() -> (MockServer, Value) {
     let mock_server = MockServer::start().await;
 
-    let counter = AtomicUsize::new(0);
+    let text_to_embedding: BTreeMap<_, _> = vec![
+        // text -> embedding
+        ("kefir", [0.0, 0.0, 0.0]),
+        ("intel", [1.0, 1.0, 1.0]),
+    ]
+    // turn into btree
+    .into_iter()
+    .collect();
 
     Mock::given(method("POST"))
         .and(path("/"))
@@ -171,8 +198,11 @@ async fn create_mock_single_response_in_array() -> (MockServer, Value) {
             };
 
             let output = vec![SingleResponse {
+                embedding: text_to_embedding
+                    .get(req.input.as_str())
+                    .unwrap_or(&[99., 99., 99.])
+                    .to_vec(),
                 text: req.input,
-                embedding: vec![counter.fetch_add(1, Ordering::Relaxed) as f32; 3],
             }];
 
             let response = MultipleResponse { output };
@@ -196,7 +226,8 @@ async fn create_mock_single_response_in_array() -> (MockServer, Value) {
               "embedding": "{{embedding}}"
             }
           ]
-        }
+        },
+        "documentTemplate": "{{doc.name}}"
     });
 
     (mock_server, embedder_settings)
@@ -205,7 +236,14 @@ async fn create_mock_single_response_in_array() -> (MockServer, Value) {
 async fn create_mock_raw_with_custom_header() -> (MockServer, Value) {
     let mock_server = MockServer::start().await;
 
-    let counter = AtomicUsize::new(0);
+    let text_to_embedding: BTreeMap<_, _> = vec![
+        // text -> embedding
+        ("kefir", [0.0, 0.0, 0.0]),
+        ("intel", [1.0, 1.0, 1.0]),
+    ]
+    // turn into btree
+    .into_iter()
+    .collect();
 
     Mock::given(method("POST"))
         .and(path("/"))
@@ -223,7 +261,7 @@ async fn create_mock_raw_with_custom_header() -> (MockServer, Value) {
                 }
             }
 
-            let _req: String = match req.body_json() {
+            let req: String = match req.body_json() {
                 Ok(req) => req,
                 Err(error) => {
                     return ResponseTemplate::new(400).set_body_json(json!({
@@ -232,7 +270,7 @@ async fn create_mock_raw_with_custom_header() -> (MockServer, Value) {
                 }
             };
 
-            let output = vec![counter.fetch_add(1, Ordering::Relaxed) as f32; 3];
+            let output = text_to_embedding.get(req.as_str()).unwrap_or(&[99., 99., 99.]).to_vec();
 
             ResponseTemplate::new(200).set_body_json(output)
         })
@@ -245,7 +283,8 @@ async fn create_mock_raw_with_custom_header() -> (MockServer, Value) {
         "url": url,
         "request": "{{text}}",
         "response": "{{embedding}}",
-        "headers": {"my-nonstandard-auth": "bearer of the ring"}
+        "headers": {"my-nonstandard-auth": "bearer of the ring"},
+        "documentTemplate": "{{doc.name}}"
     });
 
     (mock_server, embedder_settings)
@@ -254,12 +293,19 @@ async fn create_mock_raw_with_custom_header() -> (MockServer, Value) {
 async fn create_mock_raw() -> (MockServer, Value) {
     let mock_server = MockServer::start().await;
 
-    let counter = AtomicUsize::new(0);
+    let text_to_embedding: BTreeMap<_, _> = vec![
+        // text -> embedding
+        ("kefir", [0.0, 0.0, 0.0]),
+        ("intel", [1.0, 1.0, 1.0]),
+    ]
+    // turn into btree
+    .into_iter()
+    .collect();
 
     Mock::given(method("POST"))
         .and(path("/"))
         .respond_with(move |req: &Request| {
-            let _req: String = match req.body_json() {
+            let req: String = match req.body_json() {
                 Ok(req) => req,
                 Err(error) => {
                     return ResponseTemplate::new(400).set_body_json(json!({
@@ -268,7 +314,7 @@ async fn create_mock_raw() -> (MockServer, Value) {
                 }
             };
 
-            let output = vec![counter.fetch_add(1, Ordering::Relaxed) as f32; 3];
+            let output = text_to_embedding.get(req.as_str()).unwrap_or(&[99., 99., 99.]).to_vec();
 
             ResponseTemplate::new(200).set_body_json(output)
         })
@@ -281,29 +327,30 @@ async fn create_mock_raw() -> (MockServer, Value) {
         "url": url,
         "dimensions": 3,
         "request": "{{text}}",
-        "response": "{{embedding}}"
+        "response": "{{embedding}}",
+        "documentTemplate": "{{doc.name}}"
     });
 
     (mock_server, embedder_settings)
 }
 
-pub async fn post<T: IntoUrl>(url: T) -> reqwest::Result<reqwest::Response> {
+pub async fn post<T: IntoUrl>(url: T, text: &str) -> reqwest::Result<reqwest::Response> {
-    reqwest::Client::builder().build()?.post(url).send().await
+    reqwest::Client::builder().build()?.post(url).json(&json!(text)).send().await
 }
 
 #[actix_rt::test]
 async fn dummy_testing_the_mock() {
     let (mock, _setting) = create_mock().await;
-    let body = post(&mock.uri()).await.unwrap().text().await.unwrap();
+    let body = post(&mock.uri(), "kefir").await.unwrap().text().await.unwrap();
-    snapshot!(body, @r###"{"data":[0,0,0]}"###);
+    snapshot!(body, @r###"{"data":[0.0,0.0,0.0]}"###);
-    let body = post(&mock.uri()).await.unwrap().text().await.unwrap();
+    let body = post(&mock.uri(), "intel").await.unwrap().text().await.unwrap();
-    snapshot!(body, @r###"{"data":[1,1,1]}"###);
+    snapshot!(body, @r###"{"data":[1.0,1.0,1.0]}"###);
-    let body = post(&mock.uri()).await.unwrap().text().await.unwrap();
+    let body = post(&mock.uri(), "kefir").await.unwrap().text().await.unwrap();
-    snapshot!(body, @r###"{"data":[2,2,2]}"###);
+    snapshot!(body, @r###"{"data":[0.0,0.0,0.0]}"###);
-    let body = post(&mock.uri()).await.unwrap().text().await.unwrap();
+    let body = post(&mock.uri(), "kefir").await.unwrap().text().await.unwrap();
-    snapshot!(body, @r###"{"data":[3,3,3]}"###);
+    snapshot!(body, @r###"{"data":[0.0,0.0,0.0]}"###);
-    let body = post(&mock.uri()).await.unwrap().text().await.unwrap();
+    let body = post(&mock.uri(), "intel").await.unwrap().text().await.unwrap();
-    snapshot!(body, @r###"{"data":[4,4,4]}"###);
+    snapshot!(body, @r###"{"data":[1.0,1.0,1.0]}"###);
 }
 
 #[actix_rt::test]
@@ -953,7 +1000,7 @@ async fn bad_settings() {
     let (response, code) = index
         .update_settings(json!({
           "embedders": {
-              "rest": json!({ "source": "rest", "url": mock.uri(), "request": "{{text}}", "response": { "data": "{{embedding}}" }, "dimensions": 2 }),
+              "rest": json!({ "source": "rest", "url": mock.uri(), "request": "{{text}}", "response": { "data": "{{embedding}}" }, "dimensions": 2, "documentTemplate": "{{doc.name}}" }),
           },
         }))
         .await;
@@ -1920,6 +1967,7 @@ async fn server_custom_header() {
         "embedders": {
           "rest": {
             "source": "rest",
+            "documentTemplate": "{{doc.name}}",
             "url": "[url]",
             "request": "{{text}}",
             "response": "{{embedding}}",
@@ -1940,7 +1988,7 @@ async fn server_custom_header() {
 
 #[actix_rt::test]
 async fn searchable_reindex() {
-    let (_mock, setting) = create_mock_map().await;
+    let (_mock, setting) = create_mock_default_template().await;
     let server = get_server_vector().await;
     let index = server.index("doggo");
 

crates/milli/Cargo.toml

@@ -100,6 +100,7 @@ bumpalo = "3.16.0"
 thread_local = "1.1.8"
 allocator-api2 = "0.2.18"
 rustc-hash = "2.0.0"
+uell = "0.1.0"
 
 [dev-dependencies]
 mimalloc = { version = "0.1.43", default-features = false }

crates/milli/src/error.rs

@@ -122,7 +122,7 @@ and can not be more than 512 bytes.", .document_id.to_string()
     #[error("The `_vectors` field in the document with id: `{document_id}` is not an object. Was expecting an object with a key for each embedder with manually provided vectors, but instead got `{value}`")]
     InvalidVectorsMapType { document_id: String, value: Value },
     #[error("Bad embedder configuration in the document with id: `{document_id}`. {error}")]
-    InvalidVectorsEmbedderConf { document_id: String, error: deserr::errors::JsonError },
+    InvalidVectorsEmbedderConf { document_id: String, error: String },
     #[error("{0}")]
     InvalidFilter(String),
     #[error("Invalid type for filter subexpression: expected: {}, found: {1}.", .0.join(", "))]

crates/milli/src/heed_codec/facet/ordered_f64_codec.rs

@@ -27,17 +27,34 @@ impl heed::BytesEncode<'_> for OrderedF64Codec {
     fn bytes_encode(f: &Self::EItem) -> Result<Cow<'_, [u8]>, BoxedError> {
         let mut buffer = [0u8; 16];
 
-        // write the globally ordered float
+        encode_f64_into_ordered_bytes(*f, &mut buffer)?;
-        let bytes = f64_into_bytes(*f).ok_or(InvalidGloballyOrderedFloatError { float: *f })?;
-        buffer[..8].copy_from_slice(&bytes[..]);
-        // Then the f64 value just to be able to read it back
-        let bytes = f.to_be_bytes();
-        buffer[8..16].copy_from_slice(&bytes[..]);
 
         Ok(Cow::Owned(buffer.to_vec()))
     }
 }
 
+impl OrderedF64Codec {
+    pub fn serialize_into(
+        f: f64,
+        buffer: &mut [u8; 16],
+    ) -> Result<(), InvalidGloballyOrderedFloatError> {
+        encode_f64_into_ordered_bytes(f, buffer)
+    }
+}
+
+fn encode_f64_into_ordered_bytes(
+    f: f64,
+    buffer: &mut [u8; 16],
+) -> Result<(), InvalidGloballyOrderedFloatError> {
+    let bytes = f64_into_bytes(f).ok_or(InvalidGloballyOrderedFloatError { float: f })?;
+    buffer[..8].copy_from_slice(&bytes[..]);
+    // Then the f64 value just to be able to read it back
+    let bytes = f.to_be_bytes();
+    buffer[8..16].copy_from_slice(&bytes[..]);
+
+    Ok(())
+}
+
 #[derive(Error, Debug)]
 #[error("the float {float} cannot be converted to a globally ordered representation")]
 pub struct InvalidGloballyOrderedFloatError {

crates/milli/src/update/index_documents/typed_chunk.rs

@@ -737,7 +737,7 @@ pub(crate) fn write_typed_chunk_into_index(
 }
 
 /// Converts the latitude and longitude back to an xyz GeoPoint.
-fn extract_geo_point(value: &[u8], docid: DocumentId) -> GeoPoint {
+pub fn extract_geo_point(value: &[u8], docid: DocumentId) -> GeoPoint {
     let (lat, tail) = helpers::try_split_array_at::<u8, 8>(value).unwrap();
     let (lng, _) = helpers::try_split_array_at::<u8, 8>(tail).unwrap();
     let point = [f64::from_ne_bytes(lat), f64::from_ne_bytes(lng)];

crates/milli/src/update/new/channel.rs

@@ -2,12 +2,16 @@ use std::marker::PhantomData;
 use std::sync::atomic::{AtomicUsize, Ordering};
 
 use crossbeam_channel::{IntoIter, Receiver, SendError, Sender};
-use hashbrown::HashMap;
 use heed::types::Bytes;
+use heed::BytesDecode;
+use memmap2::Mmap;
 use roaring::RoaringBitmap;
 
 use super::extract::FacetKind;
 use super::StdResult;
+use crate::heed_codec::facet::{FieldDocIdFacetF64Codec, FieldDocIdFacetStringCodec};
+use crate::index::main_key::{GEO_FACETED_DOCUMENTS_IDS_KEY, GEO_RTREE_KEY};
+use crate::index::IndexEmbeddingConfig;
 use crate::update::new::KvReaderFieldId;
 use crate::vector::Embedding;
 use crate::{DocumentId, Index};
@@ -26,9 +30,9 @@ pub fn extractor_writer_channel(cap: usize) -> (ExtractorSender, WriterReceiver)
     )
 }
 
-pub struct KeyValueEntry {
+pub enum KeyValueEntry {
-    pub key_length: usize,
+    Small { key_length: usize, data: Box<[u8]> },
-    pub data: Box<[u8]>,
+    Large { key_entry: KeyEntry, data: Mmap },
 }
 
 impl KeyValueEntry {
@@ -36,14 +40,25 @@ impl KeyValueEntry {
         let mut data = Vec::with_capacity(key.len() + value.len());
         data.extend_from_slice(key);
         data.extend_from_slice(value);
-        KeyValueEntry { key_length: key.len(), data: data.into_boxed_slice() }
+        KeyValueEntry::Small { key_length: key.len(), data: data.into_boxed_slice() }
     }
+
+    fn from_large_key_value(key: &[u8], value: Mmap) -> Self {
+        KeyValueEntry::Large { key_entry: KeyEntry::from_key(key), data: value }
+    }
+
     pub fn key(&self) -> &[u8] {
-        &self.data[..self.key_length]
+        match self {
+            KeyValueEntry::Small { key_length, data } => &data[..*key_length],
+            KeyValueEntry::Large { key_entry, data: _ } => key_entry.entry(),
+        }
     }
 
     pub fn value(&self) -> &[u8] {
-        &self.data[self.key_length..]
+        match self {
+            KeyValueEntry::Small { key_length, data } => &data[*key_length..],
+            KeyValueEntry::Large { key_entry: _, data } => &data[..],
+        }
     }
 }
 
@@ -87,7 +102,7 @@ pub enum ArroyOperation {
         embedding: Embedding,
     },
     Finish {
-        user_provided: HashMap<String, RoaringBitmap>,
+        configs: Vec<IndexEmbeddingConfig>,
     },
 }
 
@@ -98,6 +113,7 @@ pub struct DbOperation {
 
 #[derive(Debug)]
 pub enum Database {
+    Main,
     Documents,
     ExternalDocumentsIds,
     ExactWordDocids,
@@ -111,11 +127,14 @@ pub enum Database {
     FacetIdExistsDocids,
     FacetIdF64NumberDocids,
     FacetIdStringDocids,
+    FieldIdDocidFacetStrings,
+    FieldIdDocidFacetF64s,
 }
 
 impl Database {
     pub fn database(&self, index: &Index) -> heed::Database<Bytes, Bytes> {
         match self {
+            Database::Main => index.main.remap_types(),
             Database::Documents => index.documents.remap_types(),
             Database::ExternalDocumentsIds => index.external_documents_ids.remap_types(),
             Database::ExactWordDocids => index.exact_word_docids.remap_types(),
@@ -129,6 +148,8 @@ impl Database {
             Database::FacetIdExistsDocids => index.facet_id_exists_docids.remap_types(),
             Database::FacetIdF64NumberDocids => index.facet_id_f64_docids.remap_types(),
             Database::FacetIdStringDocids => index.facet_id_string_docids.remap_types(),
+            Database::FieldIdDocidFacetStrings => index.field_id_docid_facet_strings.remap_types(),
+            Database::FieldIdDocidFacetF64s => index.field_id_docid_facet_f64s.remap_types(),
         }
     }
 }
@@ -200,6 +221,10 @@ impl ExtractorSender {
         FacetDocidsSender { sender: self }
     }
 
+    pub fn field_id_docid_facet_sender(&self) -> FieldIdDocidFacetSender<'_> {
+        FieldIdDocidFacetSender(self)
+    }
+
     pub fn documents(&self) -> DocumentsSender<'_> {
         DocumentsSender(self)
     }
@@ -208,6 +233,10 @@ impl ExtractorSender {
         EmbeddingSender(&self.sender)
     }
 
+    pub fn geo(&self) -> GeoSender<'_> {
+        GeoSender(&self.sender)
+    }
+
     fn send_delete_vector(&self, docid: DocumentId) -> StdResult<(), SendError<()>> {
         match self
             .sender
@@ -332,6 +361,36 @@ impl DocidsSender for FacetDocidsSender<'_> {
     }
 }
 
+pub struct FieldIdDocidFacetSender<'a>(&'a ExtractorSender);
+
+impl FieldIdDocidFacetSender<'_> {
+    pub fn write_facet_string(&self, key: &[u8], value: &[u8]) -> StdResult<(), SendError<()>> {
+        debug_assert!(FieldDocIdFacetStringCodec::bytes_decode(key).is_ok());
+        let entry = EntryOperation::Write(KeyValueEntry::from_small_key_value(&key, &value));
+        self.0
+            .send_db_operation(DbOperation { database: Database::FieldIdDocidFacetStrings, entry })
+    }
+
+    pub fn write_facet_f64(&self, key: &[u8]) -> StdResult<(), SendError<()>> {
+        debug_assert!(FieldDocIdFacetF64Codec::bytes_decode(key).is_ok());
+        let entry = EntryOperation::Write(KeyValueEntry::from_small_key_value(&key, &[]));
+        self.0.send_db_operation(DbOperation { database: Database::FieldIdDocidFacetF64s, entry })
+    }
+
+    pub fn delete_facet_string(&self, key: &[u8]) -> StdResult<(), SendError<()>> {
+        debug_assert!(FieldDocIdFacetStringCodec::bytes_decode(key).is_ok());
+        let entry = EntryOperation::Delete(KeyEntry::from_key(key));
+        self.0
+            .send_db_operation(DbOperation { database: Database::FieldIdDocidFacetStrings, entry })
+    }
+
+    pub fn delete_facet_f64(&self, key: &[u8]) -> StdResult<(), SendError<()>> {
+        debug_assert!(FieldDocIdFacetF64Codec::bytes_decode(key).is_ok());
+        let entry = EntryOperation::Delete(KeyEntry::from_key(key));
+        self.0.send_db_operation(DbOperation { database: Database::FieldIdDocidFacetF64s, entry })
+    }
+}
+
 pub struct DocumentsSender<'a>(&'a ExtractorSender);
 
 impl DocumentsSender<'_> {
@@ -418,12 +477,40 @@ impl EmbeddingSender<'_> {
     }
 
     /// Marks all embedders as "to be built"
-    pub fn finish(
+    pub fn finish(self, configs: Vec<IndexEmbeddingConfig>) -> StdResult<(), SendError<()>> {
-        self,
-        user_provided: HashMap<String, RoaringBitmap>,
-    ) -> StdResult<(), SendError<()>> {
         self.0
-            .send(WriterOperation::ArroyOperation(ArroyOperation::Finish { user_provided }))
+            .send(WriterOperation::ArroyOperation(ArroyOperation::Finish { configs }))
+            .map_err(|_| SendError(()))
+    }
+}
+
+pub struct GeoSender<'a>(&'a Sender<WriterOperation>);
+
+impl GeoSender<'_> {
+    pub fn set_rtree(&self, value: Mmap) -> StdResult<(), SendError<()>> {
+        self.0
+            .send(WriterOperation::DbOperation(DbOperation {
+                database: Database::Main,
+                entry: EntryOperation::Write(KeyValueEntry::from_large_key_value(
+                    GEO_RTREE_KEY.as_bytes(),
+                    value,
+                )),
+            }))
+            .map_err(|_| SendError(()))
+    }
+
+    pub fn set_geo_faceted(&self, bitmap: &RoaringBitmap) -> StdResult<(), SendError<()>> {
+        let mut buffer = Vec::new();
+        bitmap.serialize_into(&mut buffer).unwrap();
+
+        self.0
+            .send(WriterOperation::DbOperation(DbOperation {
+                database: Database::Main,
+                entry: EntryOperation::Write(KeyValueEntry::from_small_key_value(
+                    GEO_FACETED_DOCUMENTS_IDS_KEY.as_bytes(),
+                    &buffer,
+                )),
+            }))
             .map_err(|_| SendError(()))
     }
 }

crates/milli/src/update/new/document.rs

@@ -332,18 +332,31 @@ where
             }
             vectors.insert(
                 name,
-                serde_json::json!({
+                if entry.implicit {
-                    "regenerate": entry.regenerate,
+                    serde_json::json!(entry.embeddings)
-                    // TODO: consider optimizing the shape of embedders here to store an array of f32 rather than a JSON object
+                } else {
-                    "embeddings": entry.embeddings,
+                    serde_json::json!({
-                }),
+                        "regenerate": entry.regenerate,
+                        // TODO: consider optimizing the shape of embedders here to store an array of f32 rather than a JSON object
+                        "embeddings": entry.embeddings,
+                    })
+                },
             );
         }
 
+        if vectors.is_empty() {
+            break 'inject_vectors;
+        }
+
         vectors_value = serde_json::value::to_raw_value(&vectors).unwrap();
         unordered_field_buffer.push((vectors_fid, &vectors_value));
     }
 
+    if let Some(geo_value) = document.geo_field()? {
+        let fid = fields_ids_map.id_or_insert("_geo").ok_or(UserError::AttributeLimitReached)?;
+        unordered_field_buffer.push((fid, geo_value));
+    }
+
     unordered_field_buffer.sort_by_key(|(fid, _)| *fid);
     for (fid, value) in unordered_field_buffer.iter() {
         writer.insert(*fid, value.get().as_bytes()).unwrap();
@@ -398,6 +411,7 @@ impl<'doc> Versions<'doc> {
     pub fn is_empty(&self) -> bool {
         self.data.is_empty()
     }
+
     pub fn top_level_field(&self, k: &str) -> Option<&'doc RawValue> {
         if k == RESERVED_VECTORS_FIELD_NAME || k == "_geo" {
             return None;

crates/milli/src/update/new/document_change.rs

@@ -97,7 +97,7 @@ impl<'doc> Insertion<'doc> {
         doc_alloc: &'doc Bump,
         embedders: &'doc EmbeddingConfigs,
     ) -> Result<Option<VectorDocumentFromVersions<'doc>>> {
-        VectorDocumentFromVersions::new(&self.new, doc_alloc, embedders)
+        VectorDocumentFromVersions::new(self.external_document_id, &self.new, doc_alloc, embedders)
     }
 }
 
@@ -169,7 +169,7 @@ impl<'doc> Update<'doc> {
         doc_alloc: &'doc Bump,
         embedders: &'doc EmbeddingConfigs,
     ) -> Result<Option<VectorDocumentFromVersions<'doc>>> {
-        VectorDocumentFromVersions::new(&self.new, doc_alloc, embedders)
+        VectorDocumentFromVersions::new(self.external_document_id, &self.new, doc_alloc, embedders)
     }
 
     pub fn merged_vectors<Mapper: FieldIdMapper>(
@@ -181,10 +181,22 @@ impl<'doc> Update<'doc> {
         embedders: &'doc EmbeddingConfigs,
     ) -> Result<Option<MergedVectorDocument<'doc>>> {
         if self.has_deletion {
-            MergedVectorDocument::without_db(&self.new, doc_alloc, embedders)
+            MergedVectorDocument::without_db(
+                self.external_document_id,
+                &self.new,
+                doc_alloc,
+                embedders,
+            )
         } else {
             MergedVectorDocument::with_db(
-                self.docid, index, rtxn, mapper, &self.new, doc_alloc, embedders,
+                self.docid,
+                self.external_document_id,
+                index,
+                rtxn,
+                mapper,
+                &self.new,
+                doc_alloc,
+                embedders,
             )
         }
     }

crates/milli/src/update/new/extract/documents.rs

@@ -54,7 +54,7 @@ impl<'a, 'extractor> Extractor<'extractor> for DocumentsExtractor<'a> {
                 DocumentChange::Deletion(deletion) => {
                     let docid = deletion.docid();
                     let content = deletion.current(
-                        &context.txn,
+                        &context.rtxn,
                         context.index,
                         &context.db_fields_ids_map,
                     )?;
@@ -72,7 +72,7 @@ impl<'a, 'extractor> Extractor<'extractor> for DocumentsExtractor<'a> {
                 DocumentChange::Update(update) => {
                     let docid = update.docid();
                     let content =
-                        update.current(&context.txn, context.index, &context.db_fields_ids_map)?;
+                        update.current(&context.rtxn, context.index, &context.db_fields_ids_map)?;
                     for res in content.iter_top_level_fields() {
                         let (f, _) = res?;
                         let entry = document_extractor_data
@@ -92,9 +92,9 @@ impl<'a, 'extractor> Extractor<'extractor> for DocumentsExtractor<'a> {
                     }
 
                     let content =
-                        update.merged(&context.txn, context.index, &context.db_fields_ids_map)?;
+                        update.merged(&context.rtxn, context.index, &context.db_fields_ids_map)?;
                     let vector_content = update.merged_vectors(
-                        &context.txn,
+                        &context.rtxn,
                         context.index,
                         &context.db_fields_ids_map,
                         &context.doc_alloc,

crates/milli/src/update/new/extract/faceted/extract_facets.rs

@@ -1,16 +1,21 @@
 use std::cell::RefCell;
 use std::collections::HashSet;
+use std::mem::size_of;
 use std::ops::DerefMut as _;
 
+use bumpalo::collections::Vec as BVec;
 use bumpalo::Bump;
-use heed::RoTxn;
+use hashbrown::HashMap;
+use heed::{BytesDecode, RoTxn};
 use serde_json::Value;
 
 use super::super::cache::BalancedCaches;
 use super::facet_document::extract_document_facets;
 use super::FacetKind;
 use crate::facet::value_encoding::f64_into_bytes;
-use crate::update::new::extract::DocidsExtractor;
+use crate::heed_codec::facet::OrderedF64Codec;
+use crate::update::del_add::DelAdd;
+use crate::update::new::channel::FieldIdDocidFacetSender;
 use crate::update::new::indexer::document_changes::{
     extract, DocumentChangeContext, DocumentChanges, Extractor, FullySend, IndexingContext,
     Progress, ThreadLocal,
@@ -22,6 +27,7 @@ use crate::{DocumentId, FieldId, Index, Result, MAX_FACET_VALUE_LENGTH};
 
 pub struct FacetedExtractorData<'a> {
     attributes_to_extract: &'a [&'a str],
+    sender: &'a FieldIdDocidFacetSender<'a>,
     grenad_parameters: GrenadParameters,
     buckets: usize,
 }
@@ -48,6 +54,7 @@ impl<'a, 'extractor> Extractor<'extractor> for FacetedExtractorData<'a> {
                 context,
                 self.attributes_to_extract,
                 change,
+                self.sender,
             )?
         }
         Ok(())
@@ -61,12 +68,15 @@ impl FacetedDocidsExtractor {
         context: &DocumentChangeContext<RefCell<BalancedCaches>>,
         attributes_to_extract: &[&str],
         document_change: DocumentChange,
+        sender: &FieldIdDocidFacetSender,
     ) -> Result<()> {
         let index = &context.index;
-        let rtxn = &context.txn;
+        let rtxn = &context.rtxn;
         let mut new_fields_ids_map = context.new_fields_ids_map.borrow_mut_or_yield();
         let mut cached_sorter = context.data.borrow_mut_or_yield();
-        match document_change {
+        let mut del_add_facet_value = DelAddFacetValue::new(&context.doc_alloc);
+        let docid = document_change.docid();
+        let res = match document_change {
             DocumentChange::Deletion(inner) => extract_document_facets(
                 attributes_to_extract,
                 inner.current(rtxn, index, context.db_fields_ids_map)?,
@@ -76,7 +86,9 @@ impl FacetedDocidsExtractor {
                         &context.doc_alloc,
                         cached_sorter.deref_mut(),
                         BalancedCaches::insert_del_u32,
-                        inner.docid(),
+                        &mut del_add_facet_value,
+                        DelAddFacetValue::insert_del,
+                        docid,
                         fid,
                         value,
                     )
@@ -92,7 +104,9 @@ impl FacetedDocidsExtractor {
                             &context.doc_alloc,
                             cached_sorter.deref_mut(),
                             BalancedCaches::insert_del_u32,
-                            inner.docid(),
+                            &mut del_add_facet_value,
+                            DelAddFacetValue::insert_del,
+                            docid,
                             fid,
                             value,
                         )
@@ -108,7 +122,9 @@ impl FacetedDocidsExtractor {
                             &context.doc_alloc,
                             cached_sorter.deref_mut(),
                             BalancedCaches::insert_add_u32,
-                            inner.docid(),
+                            &mut del_add_facet_value,
+                            DelAddFacetValue::insert_add,
+                            docid,
                             fid,
                             value,
                         )
@@ -124,24 +140,31 @@ impl FacetedDocidsExtractor {
                         &context.doc_alloc,
                         cached_sorter.deref_mut(),
                         BalancedCaches::insert_add_u32,
-                        inner.docid(),
+                        &mut del_add_facet_value,
+                        DelAddFacetValue::insert_add,
+                        docid,
                         fid,
                         value,
                     )
                 },
             ),
-        }
+        };
+
+        del_add_facet_value.send_data(docid, sender, &context.doc_alloc).unwrap();
+        res
     }
 
-    fn facet_fn_with_options<'extractor>(
+    fn facet_fn_with_options<'extractor, 'doc>(
-        doc_alloc: &Bump,
+        doc_alloc: &'doc Bump,
         cached_sorter: &mut BalancedCaches<'extractor>,
         cache_fn: impl Fn(&mut BalancedCaches<'extractor>, &[u8], u32) -> Result<()>,
+        del_add_facet_value: &mut DelAddFacetValue<'doc>,
+        facet_fn: impl Fn(&mut DelAddFacetValue<'doc>, FieldId, BVec<'doc, u8>, FacetKind),
         docid: DocumentId,
         fid: FieldId,
         value: &Value,
     ) -> Result<()> {
-        let mut buffer = bumpalo::collections::Vec::new_in(doc_alloc);
+        let mut buffer = BVec::new_in(doc_alloc);
         // Exists
         // key: fid
         buffer.push(FacetKind::Exists as u8);
@@ -152,15 +175,21 @@ impl FacetedDocidsExtractor {
             // Number
             // key: fid - level - orderedf64 - orignalf64
             Value::Number(number) => {
-                if let Some((n, ordered)) =
+                let mut ordered = [0u8; 16];
-                    number.as_f64().and_then(|n| f64_into_bytes(n).map(|ordered| (n, ordered)))
+                if number
+                    .as_f64()
+                    .and_then(|n| OrderedF64Codec::serialize_into(n, &mut ordered).ok())
+                    .is_some()
                 {
+                    let mut number = BVec::with_capacity_in(16, doc_alloc);
+                    number.extend_from_slice(&ordered);
+                    facet_fn(del_add_facet_value, fid, number, FacetKind::Number);
+
                     buffer.clear();
                     buffer.push(FacetKind::Number as u8);
                     buffer.extend_from_slice(&fid.to_be_bytes());
                     buffer.push(0); // level 0
                     buffer.extend_from_slice(&ordered);
-                    buffer.extend_from_slice(&n.to_be_bytes());
                     cache_fn(cached_sorter, &buffer, docid)
                 } else {
                     Ok(())
@@ -169,6 +198,10 @@ impl FacetedDocidsExtractor {
             // String
             // key: fid - level - truncated_string
             Value::String(s) => {
+                let mut string = BVec::new_in(doc_alloc);
+                string.extend_from_slice(s.as_bytes());
+                facet_fn(del_add_facet_value, fid, string, FacetKind::String);
+
                 let normalized = crate::normalize_facet(s);
                 let truncated = truncate_str(&normalized);
                 buffer.clear();
@@ -211,6 +244,83 @@ impl FacetedDocidsExtractor {
     }
 }
 
+struct DelAddFacetValue<'doc> {
+    strings: HashMap<(FieldId, BVec<'doc, u8>), DelAdd, hashbrown::DefaultHashBuilder, &'doc Bump>,
+    f64s: HashMap<(FieldId, BVec<'doc, u8>), DelAdd, hashbrown::DefaultHashBuilder, &'doc Bump>,
+}
+
+impl<'doc> DelAddFacetValue<'doc> {
+    fn new(doc_alloc: &'doc Bump) -> Self {
+        Self { strings: HashMap::new_in(doc_alloc), f64s: HashMap::new_in(doc_alloc) }
+    }
+
+    fn insert_add(&mut self, fid: FieldId, value: BVec<'doc, u8>, kind: FacetKind) {
+        let cache = match kind {
+            FacetKind::String => &mut self.strings,
+            FacetKind::Number => &mut self.f64s,
+            _ => return,
+        };
+
+        let key = (fid, value);
+        if let Some(DelAdd::Deletion) = cache.get(&key) {
+            cache.remove(&key);
+        } else {
+            cache.insert(key, DelAdd::Addition);
+        }
+    }
+
+    fn insert_del(&mut self, fid: FieldId, value: BVec<'doc, u8>, kind: FacetKind) {
+        let cache = match kind {
+            FacetKind::String => &mut self.strings,
+            FacetKind::Number => &mut self.f64s,
+            _ => return,
+        };
+
+        let key = (fid, value);
+        if let Some(DelAdd::Addition) = cache.get(&key) {
+            cache.remove(&key);
+        } else {
+            cache.insert(key, DelAdd::Deletion);
+        }
+    }
+
+    fn send_data(
+        self,
+        docid: DocumentId,
+        sender: &FieldIdDocidFacetSender,
+        doc_alloc: &Bump,
+    ) -> std::result::Result<(), crossbeam_channel::SendError<()>> {
+        let mut buffer = bumpalo::collections::Vec::new_in(doc_alloc);
+        for ((fid, value), deladd) in self.strings {
+            if let Ok(s) = std::str::from_utf8(&value) {
+                buffer.clear();
+                buffer.extend_from_slice(&fid.to_be_bytes());
+                buffer.extend_from_slice(&docid.to_be_bytes());
+                let normalized = crate::normalize_facet(s);
+                let truncated = truncate_str(&normalized);
+                buffer.extend_from_slice(truncated.as_bytes());
+                match deladd {
+                    DelAdd::Deletion => sender.delete_facet_string(&buffer)?,
+                    DelAdd::Addition => sender.write_facet_string(&buffer, &value)?,
+                }
+            }
+        }
+
+        for ((fid, value), deladd) in self.f64s {
+            buffer.clear();
+            buffer.extend_from_slice(&fid.to_be_bytes());
+            buffer.extend_from_slice(&docid.to_be_bytes());
+            buffer.extend_from_slice(&value);
+            match deladd {
+                DelAdd::Deletion => sender.delete_facet_f64(&buffer)?,
+                DelAdd::Addition => sender.write_facet_f64(&buffer)?,
+            }
+        }
+
+        Ok(())
+    }
+}
+
 /// Truncates a string to the biggest valid LMDB key size.
 fn truncate_str(s: &str) -> &str {
     let index = s
@@ -223,13 +333,23 @@ fn truncate_str(s: &str) -> &str {
     &s[..index.unwrap_or(0)]
 }
 
-impl DocidsExtractor for FacetedDocidsExtractor {
+impl FacetedDocidsExtractor {
     #[tracing::instrument(level = "trace", skip_all, target = "indexing::extract::faceted")]
-    fn run_extraction<'pl, 'fid, 'indexer, 'index, 'extractor, DC: DocumentChanges<'pl>, MSP, SP>(
+    pub fn run_extraction<
+        'pl,
+        'fid,
+        'indexer,
+        'index,
+        'extractor,
+        DC: DocumentChanges<'pl>,
+        MSP,
+        SP,
+    >(
         grenad_parameters: GrenadParameters,
         document_changes: &DC,
         indexing_context: IndexingContext<'fid, 'indexer, 'index, MSP, SP>,
         extractor_allocs: &'extractor mut ThreadLocal<FullySend<Bump>>,
+        sender: &FieldIdDocidFacetSender,
         finished_steps: u16,
         total_steps: u16,
         step_name: &'static str,
@@ -254,6 +374,7 @@ impl DocidsExtractor for FacetedDocidsExtractor {
                 attributes_to_extract: &attributes_to_extract,
                 grenad_parameters,
                 buckets: rayon::current_num_threads(),
+                sender,
             };
             extract(
                 document_changes,

crates/milli/src/update/new/extract/faceted/facet_document.rs

@@ -10,7 +10,8 @@ pub fn extract_document_facets<'doc>(
     field_id_map: &mut GlobalFieldsIdsMap,
     facet_fn: &mut impl FnMut(FieldId, &Value) -> Result<()>,
 ) -> Result<()> {
-    for res in document.iter_top_level_fields() {
+    let geo = document.geo_field().transpose().map(|res|  res.map(|rval| ("_geo", rval)));
+    for res in document.iter_top_level_fields().chain(geo) {
         let (field_name, value) = res?;
 
         let mut tokenize_field = |name: &str, value: &Value| match field_id_map.id_or_insert(name) {

crates/milli/src/update/new/extract/faceted/mod.rs

@@ -28,7 +28,6 @@ impl From<u8> for FacetKind {
 
 impl FacetKind {
     pub fn extract_from_key(key: &[u8]) -> (FacetKind, &[u8]) {
-        debug_assert!(key.len() > 3);
         (FacetKind::from(key[0]), &key[1..])
     }
 }

crates/milli/src/update/new/extract/geo/mod.rs

@@ -0,0 +1,320 @@
+use std::cell::RefCell;
+use std::fs::File;
+use std::io::{self, BufReader, BufWriter, ErrorKind, Read, Write as _};
+use std::{iter, mem, result};
+
+use bumpalo::Bump;
+use bytemuck::{bytes_of, from_bytes, pod_read_unaligned, Pod, Zeroable};
+use heed::RoTxn;
+use serde_json::value::RawValue;
+use serde_json::Value;
+
+use crate::error::GeoError;
+use crate::update::new::document::Document;
+use crate::update::new::indexer::document_changes::{DocumentChangeContext, Extractor, MostlySend};
+use crate::update::new::ref_cell_ext::RefCellExt as _;
+use crate::update::new::DocumentChange;
+use crate::update::GrenadParameters;
+use crate::{lat_lng_to_xyz, DocumentId, GeoPoint, Index, InternalError, Object, Result};
+
+pub struct GeoExtractor {
+    grenad_parameters: GrenadParameters,
+}
+
+impl GeoExtractor {
+    pub fn new(
+        rtxn: &RoTxn,
+        index: &Index,
+        grenad_parameters: GrenadParameters,
+    ) -> Result<Option<Self>> {
+        let is_sortable = index.sortable_fields(rtxn)?.contains("_geo");
+        let is_filterable = index.filterable_fields(rtxn)?.contains("_geo");
+        if is_sortable || is_filterable {
+            Ok(Some(GeoExtractor { grenad_parameters }))
+        } else {
+            Ok(None)
+        }
+    }
+}
+
+#[derive(Pod, Zeroable, Copy, Clone)]
+#[repr(C, packed)]
+pub struct ExtractedGeoPoint {
+    pub docid: DocumentId,
+    pub lat_lng: [f64; 2],
+}
+
+impl From<ExtractedGeoPoint> for GeoPoint {
+    /// Converts the latitude and longitude back to an xyz GeoPoint.
+    fn from(value: ExtractedGeoPoint) -> Self {
+        let [lat, lng] = value.lat_lng;
+        let point = [lat, lng];
+        let xyz_point = lat_lng_to_xyz(&point);
+        GeoPoint::new(xyz_point, (value.docid, point))
+    }
+}
+
+pub struct GeoExtractorData<'extractor> {
+    /// The set of documents ids that were removed. If a document sees its geo
+    /// point being updated, we first put it in the deleted and then in the inserted.
+    removed: bumpalo::collections::Vec<'extractor, ExtractedGeoPoint>,
+    inserted: bumpalo::collections::Vec<'extractor, ExtractedGeoPoint>,
+    /// TODO Do the doc
+    spilled_removed: Option<BufWriter<File>>,
+    /// TODO Do the doc
+    spilled_inserted: Option<BufWriter<File>>,
+}
+
+impl<'extractor> GeoExtractorData<'extractor> {
+    pub fn freeze(self) -> Result<FrozenGeoExtractorData<'extractor>> {
+        let GeoExtractorData { removed, inserted, spilled_removed, spilled_inserted } = self;
+
+        Ok(FrozenGeoExtractorData {
+            removed: removed.into_bump_slice(),
+            inserted: inserted.into_bump_slice(),
+            spilled_removed: spilled_removed
+                .map(|bw| bw.into_inner().map(BufReader::new).map_err(|iie| iie.into_error()))
+                .transpose()?,
+            spilled_inserted: spilled_inserted
+                .map(|bw| bw.into_inner().map(BufReader::new).map_err(|iie| iie.into_error()))
+                .transpose()?,
+        })
+    }
+}
+
+unsafe impl MostlySend for GeoExtractorData<'_> {}
+
+pub struct FrozenGeoExtractorData<'extractor> {
+    pub removed: &'extractor [ExtractedGeoPoint],
+    pub inserted: &'extractor [ExtractedGeoPoint],
+    pub spilled_removed: Option<BufReader<File>>,
+    pub spilled_inserted: Option<BufReader<File>>,
+}
+
+impl<'extractor> FrozenGeoExtractorData<'extractor> {
+    pub fn iter_and_clear_removed(
+        &mut self,
+    ) -> impl IntoIterator<Item = io::Result<ExtractedGeoPoint>> + '_ {
+        mem::take(&mut self.removed)
+            .iter()
+            .copied()
+            .map(Ok)
+            .chain(iterator_over_spilled_geopoints(&mut self.spilled_removed))
+    }
+
+    pub fn iter_and_clear_inserted(
+        &mut self,
+    ) -> impl IntoIterator<Item = io::Result<ExtractedGeoPoint>> + '_ {
+        mem::take(&mut self.inserted)
+            .iter()
+            .copied()
+            .map(Ok)
+            .chain(iterator_over_spilled_geopoints(&mut self.spilled_inserted))
+    }
+}
+
+fn iterator_over_spilled_geopoints(
+    spilled: &mut Option<BufReader<File>>,
+) -> impl IntoIterator<Item = io::Result<ExtractedGeoPoint>> + '_ {
+    let mut spilled = spilled.take();
+    iter::from_fn(move || match &mut spilled {
+        Some(file) => {
+            let geopoint_bytes = &mut [0u8; mem::size_of::<ExtractedGeoPoint>()];
+            match file.read_exact(geopoint_bytes) {
+                Ok(()) => Some(Ok(pod_read_unaligned(geopoint_bytes))),
+                Err(e) if e.kind() == ErrorKind::UnexpectedEof => None,
+                Err(e) => Some(Err(e)),
+            }
+        }
+        None => None,
+    })
+}
+
+impl<'extractor> Extractor<'extractor> for GeoExtractor {
+    type Data = RefCell<GeoExtractorData<'extractor>>;
+
+    fn init_data<'doc>(&'doc self, extractor_alloc: &'extractor Bump) -> Result<Self::Data> {
+        Ok(RefCell::new(GeoExtractorData {
+            removed: bumpalo::collections::Vec::new_in(extractor_alloc),
+            // inserted: Uell::new_in(extractor_alloc),
+            inserted: bumpalo::collections::Vec::new_in(extractor_alloc),
+            spilled_inserted: None,
+            spilled_removed: None,
+        }))
+    }
+
+    fn process<'doc>(
+        &'doc self,
+        changes: impl Iterator<Item = Result<DocumentChange<'doc>>>,
+        context: &'doc DocumentChangeContext<Self::Data>,
+    ) -> Result<()> {
+        let rtxn = &context.rtxn;
+        let index = context.index;
+        let max_memory = self.grenad_parameters.max_memory;
+        let db_fields_ids_map = context.db_fields_ids_map;
+        let mut data_ref = context.data.borrow_mut_or_yield();
+
+        for change in changes {
+            if max_memory.map_or(false, |mm| context.extractor_alloc.allocated_bytes() >= mm) {
+                // We must spill as we allocated too much memory
+                data_ref.spilled_removed = tempfile::tempfile().map(BufWriter::new).map(Some)?;
+                data_ref.spilled_inserted = tempfile::tempfile().map(BufWriter::new).map(Some)?;
+            }
+
+            match change? {
+                DocumentChange::Deletion(deletion) => {
+                    let docid = deletion.docid();
+                    let external_id = deletion.external_document_id();
+                    let current = deletion.current(rtxn, index, db_fields_ids_map)?;
+                    let current_geo = current
+                        .geo_field()?
+                        .map(|geo| extract_geo_coordinates(external_id, geo))
+                        .transpose()?;
+
+                    if let Some(lat_lng) = current_geo.flatten() {
+                        let geopoint = ExtractedGeoPoint { docid, lat_lng };
+                        match &mut data_ref.spilled_removed {
+                            Some(file) => file.write_all(bytes_of(&geopoint))?,
+                            None => data_ref.removed.push(geopoint),
+                        }
+                    }
+                }
+                DocumentChange::Update(update) => {
+                    let current = update.current(rtxn, index, db_fields_ids_map)?;
+                    let external_id = update.external_document_id();
+                    let docid = update.docid();
+
+                    let current_geo = current
+                        .geo_field()?
+                        .map(|geo| extract_geo_coordinates(external_id, geo))
+                        .transpose()?;
+
+                    let updated_geo = update
+                        .updated()
+                        .geo_field()?
+                        .map(|geo| extract_geo_coordinates(external_id, geo))
+                        .transpose()?;
+
+                    if current_geo != updated_geo {
+                        // If the current and new geo points are different it means that
+                        // we need to replace the current by the new point and therefore
+                        // delete the current point from the RTree.
+                        if let Some(lat_lng) = current_geo.flatten() {
+                            let geopoint = ExtractedGeoPoint { docid, lat_lng };
+                            match &mut data_ref.spilled_removed {
+                                Some(file) => file.write_all(bytes_of(&geopoint))?,
+                                None => data_ref.removed.push(geopoint),
+                            }
+                        }
+
+                        if let Some(lat_lng) = updated_geo.flatten() {
+                            let geopoint = ExtractedGeoPoint { docid, lat_lng };
+                            match &mut data_ref.spilled_inserted {
+                                Some(file) => file.write_all(bytes_of(&geopoint))?,
+                                None => data_ref.inserted.push(geopoint),
+                            }
+                        }
+                    }
+                }
+                DocumentChange::Insertion(insertion) => {
+                    let external_id = insertion.external_document_id();
+                    let docid = insertion.docid();
+
+                    let inserted_geo = insertion
+                        .inserted()
+                        .geo_field()?
+                        .map(|geo| extract_geo_coordinates(external_id, geo))
+                        .transpose()?;
+
+                    if let Some(lat_lng) = inserted_geo.flatten() {
+                        let geopoint = ExtractedGeoPoint { docid, lat_lng };
+                        match &mut data_ref.spilled_inserted {
+                            Some(file) => file.write_all(bytes_of(&geopoint))?,
+                            None => data_ref.inserted.push(geopoint),
+                        }
+                    }
+                }
+            }
+        }
+
+        Ok(())
+    }
+}
+
+/// Extracts and validate the latitude and latitude from a document geo field.
+///
+/// It can be of the form `{ "lat": 0.0, "lng": "1.0" }`.
+fn extract_geo_coordinates(external_id: &str, raw_value: &RawValue) -> Result<Option<[f64; 2]>> {
+    let mut geo = match serde_json::from_str(raw_value.get()).map_err(InternalError::SerdeJson)? {
+        Value::Null => return Ok(None),
+        Value::Object(map) => map,
+        value => {
+            return Err(
+                GeoError::NotAnObject { document_id: Value::from(external_id), value }.into()
+            )
+        }
+    };
+
+    let [lat, lng] = match (geo.remove("lat"), geo.remove("lng")) {
+        (Some(lat), Some(lng)) => {
+            if geo.is_empty() {
+                [lat, lng]
+            } else {
+                return Err(GeoError::UnexpectedExtraFields {
+                    document_id: Value::from(external_id),
+                    value: Value::from(geo),
+                }
+                .into());
+            }
+        }
+        (Some(_), None) => {
+            return Err(GeoError::MissingLongitude { document_id: Value::from(external_id) }.into())
+        }
+        (None, Some(_)) => {
+            return Err(GeoError::MissingLatitude { document_id: Value::from(external_id) }.into())
+        }
+        (None, None) => {
+            return Err(GeoError::MissingLatitudeAndLongitude {
+                document_id: Value::from(external_id),
+            }
+            .into())
+        }
+    };
+
+    match (extract_finite_float_from_value(lat), extract_finite_float_from_value(lng)) {
+        (Ok(lat), Ok(lng)) => Ok(Some([lat, lng])),
+        (Ok(_), Err(value)) => {
+            Err(GeoError::BadLongitude { document_id: Value::from(external_id), value }.into())
+        }
+        (Err(value), Ok(_)) => {
+            Err(GeoError::BadLatitude { document_id: Value::from(external_id), value }.into())
+        }
+        (Err(lat), Err(lng)) => Err(GeoError::BadLatitudeAndLongitude {
+            document_id: Value::from(external_id),
+            lat,
+            lng,
+        }
+        .into()),
+    }
+}
+
+/// Extracts and validate that a serde JSON Value is actually a finite f64.
+pub fn extract_finite_float_from_value(value: Value) -> result::Result<f64, Value> {
+    let number = match value {
+        Value::Number(ref n) => match n.as_f64() {
+            Some(number) => number,
+            None => return Err(value),
+        },
+        Value::String(ref s) => match s.parse::<f64>() {
+            Ok(number) => number,
+            Err(_) => return Err(value),
+        },
+        value => return Err(value),
+    };
+
+    if number.is_finite() {
+        Ok(number)
+    } else {
+        Err(value)
+    }
+}

crates/milli/src/update/new/extract/mod.rs

@@ -1,6 +1,7 @@
 mod cache;
 mod documents;
 mod faceted;
+mod geo;
 mod searchable;
 mod vectors;
 
@@ -8,6 +9,7 @@ use bumpalo::Bump;
 pub use cache::{merge_caches, transpose_and_freeze_caches, BalancedCaches, DelAddRoaringBitmap};
 pub use documents::*;
 pub use faceted::*;
+pub use geo::*;
 pub use searchable::*;
 pub use vectors::EmbeddingExtractor;
 

crates/milli/src/update/new/extract/searchable/extract_word_docids.rs

@@ -326,7 +326,7 @@ impl WordDocidsExtractors {
         document_change: DocumentChange,
     ) -> Result<()> {
         let index = &context.index;
-        let rtxn = &context.txn;
+        let rtxn = &context.rtxn;
         let mut cached_sorter_ref = context.data.borrow_mut_or_yield();
         let cached_sorter = cached_sorter_ref.as_mut().unwrap();
         let mut new_fields_ids_map = context.new_fields_ids_map.borrow_mut_or_yield();

crates/milli/src/update/new/extract/searchable/extract_word_pair_proximity_docids.rs

@@ -39,7 +39,7 @@ impl SearchableExtractor for WordPairProximityDocidsExtractor {
         let doc_alloc = &context.doc_alloc;
 
         let index = context.index;
-        let rtxn = &context.txn;
+        let rtxn = &context.rtxn;
 
         let mut key_buffer = bumpalo::collections::Vec::new_in(doc_alloc);
         let mut del_word_pair_proximity = bumpalo::collections::Vec::new_in(doc_alloc);

crates/milli/src/update/new/extract/vectors/mod.rs

@@ -2,13 +2,13 @@ use std::cell::RefCell;
 
 use bumpalo::collections::Vec as BVec;
 use bumpalo::Bump;
-use hashbrown::HashMap;
+use hashbrown::{DefaultHashBuilder, HashMap};
 
 use super::cache::DelAddRoaringBitmap;
 use crate::error::FaultSource;
 use crate::prompt::Prompt;
 use crate::update::new::channel::EmbeddingSender;
-use crate::update::new::indexer::document_changes::{Extractor, MostlySend};
+use crate::update::new::indexer::document_changes::{DocumentChangeContext, Extractor, MostlySend};
 use crate::update::new::vector_document::VectorDocument;
 use crate::update::new::DocumentChange;
 use crate::vector::error::{
@@ -37,7 +37,7 @@ impl<'a> EmbeddingExtractor<'a> {
 }
 
 pub struct EmbeddingExtractorData<'extractor>(
-    pub HashMap<String, DelAddRoaringBitmap, hashbrown::DefaultHashBuilder, &'extractor Bump>,
+    pub HashMap<String, DelAddRoaringBitmap, DefaultHashBuilder, &'extractor Bump>,
 );
 
 unsafe impl MostlySend for EmbeddingExtractorData<'_> {}
@@ -52,9 +52,7 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
     fn process<'doc>(
         &'doc self,
         changes: impl Iterator<Item = crate::Result<DocumentChange<'doc>>>,
-        context: &'doc crate::update::new::indexer::document_changes::DocumentChangeContext<
+        context: &'doc DocumentChangeContext<Self::Data>,
-            Self::Data,
-        >,
     ) -> crate::Result<()> {
         let embedders = self.embedders.inner_as_ref();
         let mut unused_vectors_distribution =
@@ -63,7 +61,7 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
         let mut all_chunks = BVec::with_capacity_in(embedders.len(), &context.doc_alloc);
         for (embedder_name, (embedder, prompt, _is_quantized)) in embedders {
             let embedder_id =
-                context.index.embedder_category_id.get(&context.txn, embedder_name)?.ok_or_else(
+                context.index.embedder_category_id.get(&context.rtxn, embedder_name)?.ok_or_else(
                     || InternalError::DatabaseMissingEntry {
                         db_name: "embedder_category_id",
                         key: None,
@@ -85,12 +83,17 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
         for change in changes {
             let change = change?;
             match change {
-                DocumentChange::Deletion(_deletion) => {
+                DocumentChange::Deletion(deletion) => {
-                    // handled by document sender
+                    // vector deletion is handled by document sender,
+                    // we still need to accomodate deletion from user_provided
+                    for chunks in &mut all_chunks {
+                        // regenerate: true means we delete from user_provided
+                        chunks.set_regenerate(deletion.docid(), true);
+                    }
                 }
                 DocumentChange::Update(update) => {
                     let old_vectors = update.current_vectors(
-                        &context.txn,
+                        &context.rtxn,
                         context.index,
                         context.db_fields_ids_map,
                         &context.doc_alloc,
@@ -110,11 +113,8 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
                             new_vectors.vectors_for_key(embedder_name).transpose()
                         }) {
                             let new_vectors = new_vectors?;
-                            match (old_vectors.regenerate, new_vectors.regenerate) {
+                            if old_vectors.regenerate != new_vectors.regenerate {
-                                (true, true) | (false, false) => todo!(),
+                                chunks.set_regenerate(update.docid(), new_vectors.regenerate);
-                                _ => {
-                                    chunks.set_regenerate(update.docid(), new_vectors.regenerate);
-                                }
                             }
                             // do we have set embeddings?
                             if let Some(embeddings) = new_vectors.embeddings {
@@ -124,13 +124,13 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
                                         .into_vec(&context.doc_alloc, embedder_name)
                                         .map_err(|error| UserError::InvalidVectorsEmbedderConf {
                                             document_id: update.external_document_id().to_string(),
-                                            error,
+                                            error: error.to_string(),
                                         })?,
                                 );
                             } else if new_vectors.regenerate {
                                 let new_rendered = prompt.render_document(
                                     update.current(
-                                        &context.txn,
+                                        &context.rtxn,
                                         context.index,
                                         context.db_fields_ids_map,
                                     )?,
@@ -139,7 +139,7 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
                                 )?;
                                 let old_rendered = prompt.render_document(
                                     update.merged(
-                                        &context.txn,
+                                        &context.rtxn,
                                         context.index,
                                         context.db_fields_ids_map,
                                     )?,
@@ -149,6 +149,7 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
                                 if new_rendered != old_rendered {
                                     chunks.set_autogenerated(
                                         update.docid(),
+                                        update.external_document_id(),
                                         new_rendered,
                                         &unused_vectors_distribution,
                                     )?;
@@ -157,7 +158,7 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
                         } else if old_vectors.regenerate {
                             let old_rendered = prompt.render_document(
                                 update.current(
-                                    &context.txn,
+                                    &context.rtxn,
                                     context.index,
                                     context.db_fields_ids_map,
                                 )?,
@@ -166,7 +167,7 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
                             )?;
                             let new_rendered = prompt.render_document(
                                 update.merged(
-                                    &context.txn,
+                                    &context.rtxn,
                                     context.index,
                                     context.db_fields_ids_map,
                                 )?,
@@ -176,6 +177,7 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
                             if new_rendered != old_rendered {
                                 chunks.set_autogenerated(
                                     update.docid(),
+                                    update.external_document_id(),
                                     new_rendered,
                                     &unused_vectors_distribution,
                                 )?;
@@ -208,7 +210,7 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
                                             document_id: insertion
                                                 .external_document_id()
                                                 .to_string(),
-                                            error,
+                                            error: error.to_string(),
                                         })?,
                                 );
                             } else if new_vectors.regenerate {
@@ -219,6 +221,7 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
                                 )?;
                                 chunks.set_autogenerated(
                                     insertion.docid(),
+                                    insertion.external_document_id(),
                                     rendered,
                                     &unused_vectors_distribution,
                                 )?;
@@ -231,6 +234,7 @@ impl<'a, 'extractor> Extractor<'extractor> for EmbeddingExtractor<'a> {
                             )?;
                             chunks.set_autogenerated(
                                 insertion.docid(),
+                                insertion.external_document_id(),
                                 rendered,
                                 &unused_vectors_distribution,
                             )?;
@@ -266,6 +270,7 @@ struct Chunks<'a, 'extractor> {
     user_provided: &'a RefCell<EmbeddingExtractorData<'extractor>>,
     threads: &'a ThreadPoolNoAbort,
     sender: &'a EmbeddingSender<'a>,
+    has_manual_generation: Option<&'a str>,
 }
 
 impl<'a, 'extractor> Chunks<'a, 'extractor> {
@@ -295,15 +300,22 @@ impl<'a, 'extractor> Chunks<'a, 'extractor> {
             embedder_id,
             embedder_name,
             user_provided,
+            has_manual_generation: None,
         }
     }
 
     pub fn set_autogenerated(
         &mut self,
         docid: DocumentId,
+        external_docid: &'a str,
         rendered: &'a str,
         unused_vectors_distribution: &UnusedVectorsDistributionBump,
     ) -> Result<()> {
+        let is_manual = matches!(&self.embedder, &Embedder::UserProvided(_));
+        if is_manual {
+            self.has_manual_generation.get_or_insert(external_docid);
+        }
+
         if self.texts.len() < self.texts.capacity() {
             self.texts.push(rendered);
             self.ids.push(docid);
@@ -320,6 +332,7 @@ impl<'a, 'extractor> Chunks<'a, 'extractor> {
             unused_vectors_distribution,
             self.threads,
             self.sender,
+            self.has_manual_generation.take(),
         )
     }
 
@@ -337,6 +350,7 @@ impl<'a, 'extractor> Chunks<'a, 'extractor> {
             unused_vectors_distribution,
             self.threads,
             self.sender,
+            self.has_manual_generation,
         );
         // optimization: don't run bvec dtors as they only contain bumpalo allocated stuff
         std::mem::forget(self);
@@ -354,7 +368,46 @@ impl<'a, 'extractor> Chunks<'a, 'extractor> {
         unused_vectors_distribution: &UnusedVectorsDistributionBump,
         threads: &ThreadPoolNoAbort,
         sender: &EmbeddingSender<'a>,
+        has_manual_generation: Option<&'a str>,
     ) -> Result<()> {
+        if let Some(external_docid) = has_manual_generation {
+            let mut msg = format!(
+                r"While embedding documents for embedder `{embedder_name}`: no vectors provided for document `{}`{}",
+                external_docid,
+                if ids.len() > 1 {
+                    format!(" and at least {} other document(s)", ids.len() - 1)
+                } else {
+                    "".to_string()
+                }
+            );
+
+            msg += &format!("\n- Note: `{embedder_name}` has `source: userProvided`, so documents must provide embeddings as an array in `_vectors.{embedder_name}`.");
+
+            let mut hint_count = 0;
+
+            for (vector_misspelling, count) in possible_embedding_mistakes.vector_mistakes().take(2)
+            {
+                msg += &format!("\n- Hint: try replacing `{vector_misspelling}` by `_vectors` in {count} document(s).");
+                hint_count += 1;
+            }
+
+            for (embedder_misspelling, count) in possible_embedding_mistakes
+                .embedder_mistakes_bump(embedder_name, unused_vectors_distribution)
+                .take(2)
+            {
+                msg += &format!("\n- Hint: try replacing `_vectors.{embedder_misspelling}` by `_vectors.{embedder_name}` in {count} document(s).");
+                hint_count += 1;
+            }
+
+            if hint_count == 0 {
+                msg += &format!(
+                    "\n- Hint: opt-out for a document with `_vectors.{embedder_name}: null`"
+                );
+            }
+
+            return Err(crate::Error::UserError(crate::UserError::DocumentEmbeddingError(msg)));
+        }
+
         let res = match embedder.embed_chunks_ref(texts.as_slice(), threads) {
             Ok(embeddings) => {
                 for (docid, embedding) in ids.into_iter().zip(embeddings) {
@@ -423,9 +476,9 @@ impl<'a, 'extractor> Chunks<'a, 'extractor> {
         let user_provided = user_provided.0.entry_ref(self.embedder_name).or_default();
         if regenerate {
             // regenerate == !user_provided
-            user_provided.del.get_or_insert(Default::default()).insert(docid);
+            user_provided.insert_del_u32(docid);
         } else {
-            user_provided.add.get_or_insert(Default::default()).insert(docid);
+            user_provided.insert_add_u32(docid);
         }
     }
 

crates/milli/src/update/new/facet_search_builder.rs

@@ -54,23 +54,12 @@ impl<'indexer> FacetSearchBuilder<'indexer> {
         }
     }
 
-    fn extract_key_data<'k>(&self, key: &'k [u8]) -> Result<Option<FacetGroupKey<&'k str>>> {
+    pub fn register_from_key(
-        match FacetKind::from(key[0]) {
+        &mut self,
-            // Only strings are searchable
+        deladd: DelAdd,
-            FacetKind::String => Ok(Some(
+        facet_key: FacetGroupKey<&str>,
-                FacetGroupKeyCodec::<StrRefCodec>::bytes_decode(&key[1..])
+    ) -> Result<()> {
-                    .map_err(heed::Error::Encoding)?,
+        let FacetGroupKey { field_id, level: _level, left_bound } = facet_key;
-            )),
-            _ => Ok(None),
-        }
-    }
-
-    pub fn register_from_key(&mut self, deladd: DelAdd, facet_key: &[u8]) -> Result<()> {
-        let Some(FacetGroupKey { field_id, level: _level, left_bound }) =
-            self.extract_key_data(facet_key)?
-        else {
-            return Ok(());
-        };
 
         if deladd == DelAdd::Addition {
             self.registered_facets.entry(field_id).and_modify(|count| *count += 1).or_insert(1);

crates/milli/src/update/new/indexer/de.rs

@@ -41,6 +41,11 @@ impl<'de, 'p, 'indexer: 'de, Mapper: MutFieldIdMapper> Visitor<'de>
     where
         A: serde::de::MapAccess<'de>,
     {
+        // We need to remember if we encountered a semantic error, because raw values don't like to be parsed partially
+        // (trying to do so results in parsing errors).
+        // So we'll exhaust all keys and values even if we encounter an error, and we'll then return any error we detected.
+        let mut attribute_limit_reached = false;
+        let mut document_id_extraction_error = None;
         let mut docid = None;
 
         while let Some(((level_name, right), (fid, fields_ids_map))) =
@@ -49,20 +54,36 @@ impl<'de, 'p, 'indexer: 'de, Mapper: MutFieldIdMapper> Visitor<'de>
                 visitor: MutFieldIdMapVisitor(self.fields_ids_map),
             })?
         {
-            let Some(_fid) = fid else {
-                return Ok(Err(crate::UserError::AttributeLimitReached));
-            };
             self.fields_ids_map = fields_ids_map;
 
             let value: &'de RawValue = map.next_value()?;
+            if attribute_limit_reached || document_id_extraction_error.is_some() {
+                continue;
+            }
+
+            let Some(_fid) = fid else {
+                attribute_limit_reached = true;
+                continue;
+            };
 
             match match_component(level_name, right, value, self.indexer, &mut docid) {
                 ControlFlow::Continue(()) => continue,
                 ControlFlow::Break(Err(err)) => return Err(serde::de::Error::custom(err)),
-                ControlFlow::Break(Ok(err)) => return Ok(Ok(Err(err))),
+                ControlFlow::Break(Ok(err)) => {
+                    document_id_extraction_error = Some(err);
+                    continue;
+                }
             }
         }
 
+        // return previously detected errors
+        if attribute_limit_reached {
+            return Ok(Err(UserError::AttributeLimitReached));
+        }
+        if let Some(document_id_extraction_error) = document_id_extraction_error {
+            return Ok(Ok(Err(document_id_extraction_error)));
+        }
+
         Ok(Ok(match docid {
             Some(docid) => Ok(docid),
             None => Err(DocumentIdExtractionError::MissingDocumentId),

crates/milli/src/update/new/indexer/document_changes.rs

@@ -197,7 +197,7 @@ pub struct DocumentChangeContext<
     /// inside of the DB.
     pub db_fields_ids_map: &'indexer FieldsIdsMap,
     /// A transaction providing data from the DB before all indexing operations
-    pub txn: RoTxn<'indexer>,
+    pub rtxn: RoTxn<'indexer>,
 
     /// Global field id map that is up to date with the current state of the indexing process.
     ///
@@ -255,7 +255,7 @@ impl<
         let txn = index.read_txn()?;
         Ok(DocumentChangeContext {
             index,
-            txn,
+            rtxn: txn,
             db_fields_ids_map,
             new_fields_ids_map: fields_ids_map,
             doc_alloc,

crates/milli/src/update/new/indexer/document_deletion.rs

@@ -63,7 +63,7 @@ impl<'pl> DocumentChanges<'pl> for DocumentDeletionChanges<'pl> {
     where
         'pl: 'doc, // the payload must survive the process calls
     {
-        let current = context.index.document(&context.txn, *docid)?;
+        let current = context.index.document(&context.rtxn, *docid)?;
 
         let external_document_id = self.primary_key.extract_docid_from_db(
             current,

crates/milli/src/update/new/indexer/mod.rs

@@ -12,6 +12,7 @@ use heed::{RoTxn, RwTxn};
 use itertools::{merge_join_by, EitherOrBoth};
 pub use partial_dump::PartialDump;
 use rand::SeedableRng as _;
+use raw_collections::RawMap;
 use rayon::ThreadPool;
 use time::OffsetDateTime;
 pub use update_by_function::UpdateByFunction;
@@ -24,7 +25,7 @@ use super::word_fst_builder::{PrefixData, PrefixDelta, WordFstBuilder};
 use super::words_prefix_docids::{
     compute_word_prefix_docids, compute_word_prefix_fid_docids, compute_word_prefix_position_docids,
 };
-use super::{StdResult, TopLevelMap};
+use super::StdResult;
 use crate::documents::{PrimaryKey, DEFAULT_PRIMARY_KEY};
 use crate::facet::FacetType;
 use crate::fields_ids_map::metadata::{FieldIdMapWithMetadata, MetadataBuilder};
@@ -32,6 +33,7 @@ use crate::index::main_key::{WORDS_FST_KEY, WORDS_PREFIXES_FST_KEY};
 use crate::proximity::ProximityPrecision;
 use crate::update::del_add::DelAdd;
 use crate::update::new::extract::EmbeddingExtractor;
+use crate::update::new::merger::merge_and_send_rtree;
 use crate::update::new::words_prefix_docids::compute_exact_word_prefix_docids;
 use crate::update::new::{merge_and_send_docids, merge_and_send_facet_docids, FacetDatabases};
 use crate::update::settings::InnerIndexSettings;
@@ -56,6 +58,7 @@ mod steps {
         "extracting words",
         "extracting word proximity",
         "extracting embeddings",
+        "writing geo points",
         "writing to database",
         "writing embeddings to database",
         "waiting for extractors",
@@ -92,29 +95,33 @@ mod steps {
         step(4)
     }
 
-    pub const fn write_db() -> (u16, &'static str) {
+    pub const fn extract_geo_points() -> (u16, &'static str) {
         step(5)
     }
 
-    pub const fn write_embedding_db() -> (u16, &'static str) {
+    pub const fn write_db() -> (u16, &'static str) {
         step(6)
     }
 
-    pub const fn waiting_extractors() -> (u16, &'static str) {
+    pub const fn write_embedding_db() -> (u16, &'static str) {
         step(7)
     }
 
-    pub const fn post_processing_facets() -> (u16, &'static str) {
+    pub const fn waiting_extractors() -> (u16, &'static str) {
         step(8)
     }
 
-    pub const fn post_processing_words() -> (u16, &'static str) {
+    pub const fn post_processing_facets() -> (u16, &'static str) {
         step(9)
     }
 
-    pub const fn finalizing() -> (u16, &'static str) {
+    pub const fn post_processing_words() -> (u16, &'static str) {
         step(10)
     }
+
+    pub const fn finalizing() -> (u16, &'static str) {
+        step(11)
+    }
 }
 
 /// This is the main function of this crate.
@@ -143,11 +150,8 @@ where
     let (extractor_sender, writer_receiver) = extractor_writer_channel(10_000);
 
     let metadata_builder = MetadataBuilder::from_index(index, wtxn)?;
-
     let new_fields_ids_map = FieldIdMapWithMetadata::new(new_fields_ids_map, metadata_builder);
-
     let new_fields_ids_map = RwLock::new(new_fields_ids_map);
-
     let fields_ids_map_store = ThreadLocal::with_capacity(pool.current_num_threads());
     let mut extractor_allocs = ThreadLocal::with_capacity(pool.current_num_threads());
     let doc_allocs = ThreadLocal::with_capacity(pool.current_num_threads());
@@ -198,7 +202,7 @@ where
                     document_extractor_data.docids_delta.apply_to(document_ids);
                 }
 
-                field_distribution.retain(|_, v| *v == 0);
+                field_distribution.retain(|_, v| *v != 0);
 
                 const TEN_GIB: usize = 10 * 1024 * 1024 * 1024;
                 let current_num_threads = rayon::current_num_threads();
@@ -219,7 +223,7 @@ where
                     let (finished_steps, step_name) = steps::extract_facets();
 
                     facet_field_ids_delta = merge_and_send_facet_docids(
-                        FacetedDocidsExtractor::run_extraction(grenad_parameters, document_changes, indexing_context, &mut extractor_allocs, finished_steps, total_steps, step_name)?,
+                        FacetedDocidsExtractor::run_extraction(grenad_parameters, document_changes, indexing_context, &mut extractor_allocs, &extractor_sender.field_id_docid_facet_sender(), finished_steps, total_steps, step_name)?,
                         FacetDatabases::new(index),
                         index,
                         extractor_sender.facet_docids(),
@@ -327,7 +331,15 @@ where
 
                     let (finished_steps, step_name) = steps::extract_word_proximity();
 
-                    let caches = <WordPairProximityDocidsExtractor as DocidsExtractor>::run_extraction(grenad_parameters, document_changes, indexing_context, &mut extractor_allocs, finished_steps, total_steps, step_name)?;
+                    let caches = <WordPairProximityDocidsExtractor as DocidsExtractor>::run_extraction(grenad_parameters,
+                        document_changes,
+                        indexing_context,
+                        &mut extractor_allocs,
+                        finished_steps,
+                        total_steps,
+                        step_name,
+                    )?;
+
                     merge_and_send_docids(
                         caches,
                         index.word_pair_proximity_docids.remap_types(),
@@ -341,35 +353,55 @@ where
                     let span = tracing::trace_span!(target: "indexing::documents::extract", "vectors");
                     let _entered = span.enter();
 
-                    let index_embeddings = index.embedding_configs(&rtxn)?;
+                    let mut index_embeddings = index.embedding_configs(&rtxn)?;
                     if index_embeddings.is_empty() {
                         break 'vectors;
                     }
 
                     let embedding_sender = extractor_sender.embeddings();
                     let extractor = EmbeddingExtractor::new(embedders, &embedding_sender, field_distribution, request_threads());
-                    let datastore = ThreadLocal::with_capacity(pool.current_num_threads());
+                    let mut datastore = ThreadLocal::with_capacity(pool.current_num_threads());
                     let (finished_steps, step_name) = steps::extract_embeddings();
-
-
                     extract(document_changes, &extractor, indexing_context, &mut extractor_allocs, &datastore, finished_steps, total_steps, step_name)?;
 
-
+                    for config in &mut index_embeddings {
-                    let mut user_provided = HashMap::new();
+                        'data: for data in datastore.iter_mut() {
-                    for data in datastore {
+                            let data = &mut data.get_mut().0;
-                        let data = data.into_inner().0;
+                            let Some(deladd) = data.remove(&config.name) else { continue 'data; };
-                        for (embedder, deladd) in data.into_iter() {
+                            deladd.apply_to(&mut config.user_provided);
-                            let user_provided = user_provided.entry(embedder).or_insert(Default::default());
-                            if let Some(del) = deladd.del {
-                                *user_provided -= del;
-                            }
-                            if let Some(add) = deladd.add {
-                                *user_provided |= add;
-                            }
                         }
                     }
 
-                    embedding_sender.finish(user_provided).unwrap();
+                    embedding_sender.finish(index_embeddings).unwrap();
+                }
+
+                'geo: {
+                    let span = tracing::trace_span!(target: "indexing::documents::extract", "geo");
+                    let _entered = span.enter();
+
+                    // let geo_sender = extractor_sender.geo_points();
+                    let Some(extractor) = GeoExtractor::new(&rtxn, index, grenad_parameters)? else {
+                        break 'geo;
+                    };
+                    let datastore = ThreadLocal::with_capacity(pool.current_num_threads());
+                    let (finished_steps, step_name) = steps::extract_geo_points();
+                    extract(document_changes,
+                        &extractor,
+                        indexing_context,
+                        &mut extractor_allocs,
+                        &datastore,
+                        finished_steps,
+                        total_steps,
+                        step_name,
+                    )?;
+
+                    merge_and_send_rtree(
+                        datastore,
+                        &rtxn,
+                        index,
+                        extractor_sender.geo(),
+                        &indexing_context.must_stop_processing,
+                    )?;
                 }
 
                 // TODO THIS IS TOO MUCH
@@ -471,7 +503,7 @@ where
                         writer.del_items(wtxn, *dimensions, docid)?;
                         writer.add_item(wtxn, docid, &embedding)?;
                     }
-                    ArroyOperation::Finish { mut user_provided } => {
+                    ArroyOperation::Finish { configs } => {
                         let span = tracing::trace_span!(target: "indexing::vectors", parent: &indexer_span, "build");
                         let _entered = span.enter();
 
@@ -496,14 +528,6 @@ where
                             )?;
                         }
 
-                        let mut configs = index.embedding_configs(wtxn)?;
-
-                        for config in &mut configs {
-                            if let Some(user_provided) = user_provided.remove(&config.name) {
-                                config.user_provided = user_provided;
-                            }
-                        }
-
                         index.put_embedding_configs(wtxn, configs)?;
                     }
                 },
@@ -681,13 +705,11 @@ fn compute_facet_search_database(
             }
             EitherOrBoth::Left(result) => {
                 let (key, _) = result?;
-                facet_search_builder
+                facet_search_builder.register_from_key(DelAdd::Deletion, key)?;
-                    .register_from_key(DelAdd::Deletion, key.left_bound.as_ref())?;
             }
             EitherOrBoth::Right(result) => {
                 let (key, _) = result?;
-                facet_search_builder
+                facet_search_builder.register_from_key(DelAdd::Addition, key)?;
-                    .register_from_key(DelAdd::Addition, key.left_bound.as_ref())?;
             }
         }
     }
@@ -735,7 +757,7 @@ pub fn retrieve_or_guess_primary_key<'a>(
     index: &Index,
     new_fields_ids_map: &mut FieldsIdsMap,
     primary_key_from_op: Option<&'a str>,
-    first_document: Option<&'a TopLevelMap<'a>>,
+    first_document: Option<RawMap<'a>>,
 ) -> Result<StdResult<(PrimaryKey<'a>, bool), UserError>> {
     // make sure that we have a declared primary key, either fetching it from the index or attempting to guess it.
 
@@ -771,12 +793,18 @@ pub fn retrieve_or_guess_primary_key<'a>(
                 None => return Ok(Err(UserError::NoPrimaryKeyCandidateFound)),
             };
 
-            let mut guesses: Vec<&str> = first_document
+            let guesses: Result<Vec<&str>> = first_document
                 .keys()
-                .map(AsRef::as_ref)
+                .filter_map(|name| {
-                .filter(|name| name.to_lowercase().ends_with(DEFAULT_PRIMARY_KEY))
+                    let Some(_) = new_fields_ids_map.insert(name) else {
+                        return Some(Err(UserError::AttributeLimitReached.into()));
+                    };
+                    name.to_lowercase().ends_with(DEFAULT_PRIMARY_KEY).then_some(Ok(name))
+                })
                 .collect();
 
+            let mut guesses = guesses?;
+
             // sort the keys in lexicographical order, so that fields are always in the same order.
             guesses.sort_unstable();
 

crates/milli/src/update/new/indexer/update_by_function.rs

@@ -93,7 +93,7 @@ impl<'index> DocumentChanges<'index> for UpdateByFunctionChanges<'index> {
         let DocumentChangeContext {
             index,
             db_fields_ids_map,
-            txn,
+            rtxn: txn,
             new_fields_ids_map,
             doc_alloc,
             ..

crates/milli/src/update/new/merger.rs

@@ -1,68 +1,63 @@
-use std::io::{self};
+use std::cell::RefCell;
+use std::io;
 
-use bincode::ErrorKind;
 use hashbrown::HashSet;
 use heed::types::Bytes;
 use heed::{Database, RoTxn};
+use memmap2::Mmap;
 use rayon::iter::{IntoParallelIterator, ParallelIterator};
 use roaring::RoaringBitmap;
 
 use super::channel::*;
 use super::extract::{
     merge_caches, transpose_and_freeze_caches, BalancedCaches, DelAddRoaringBitmap, FacetKind,
+    GeoExtractorData,
 };
-use super::DocumentChange;
+use crate::{CboRoaringBitmapCodec, FieldId, GeoPoint, Index, InternalError, Result};
-use crate::{
-    CboRoaringBitmapCodec, Error, FieldId, GeoPoint, GlobalFieldsIdsMap, Index, InternalError,
-    Result,
-};
 
-pub struct GeoExtractor {
+#[tracing::instrument(level = "trace", skip_all, target = "indexing::merge")]
-    rtree: Option<rstar::RTree<GeoPoint>>,
+pub fn merge_and_send_rtree<'extractor, MSP>(
-}
+    datastore: impl IntoIterator<Item = RefCell<GeoExtractorData<'extractor>>>,
+    rtxn: &RoTxn,
+    index: &Index,
+    geo_sender: GeoSender<'_>,
+    must_stop_processing: &MSP,
+) -> Result<()>
+where
+    MSP: Fn() -> bool + Sync,
+{
+    let mut rtree = index.geo_rtree(rtxn)?.unwrap_or_default();
+    let mut faceted = index.geo_faceted_documents_ids(rtxn)?;
 
-impl GeoExtractor {
+    for data in datastore {
-    pub fn new(rtxn: &RoTxn, index: &Index) -> Result<Option<Self>> {
+        if must_stop_processing() {
-        let is_sortable = index.sortable_fields(rtxn)?.contains("_geo");
+            return Err(InternalError::AbortedIndexation.into());
-        let is_filterable = index.filterable_fields(rtxn)?.contains("_geo");
+        }
-        if is_sortable || is_filterable {
+
-            Ok(Some(GeoExtractor { rtree: index.geo_rtree(rtxn)? }))
+        let mut frozen = data.into_inner().freeze()?;
-        } else {
+        for result in frozen.iter_and_clear_removed() {
-            Ok(None)
+            let extracted_geo_point = result?;
+            debug_assert!(rtree.remove(&GeoPoint::from(extracted_geo_point)).is_some());
+            debug_assert!(faceted.remove(extracted_geo_point.docid));
+        }
+
+        for result in frozen.iter_and_clear_inserted() {
+            let extracted_geo_point = result?;
+            rtree.insert(GeoPoint::from(extracted_geo_point));
+            debug_assert!(faceted.insert(extracted_geo_point.docid));
         }
     }
 
-    pub fn manage_change(
+    let mut file = tempfile::tempfile()?;
-        &mut self,
+    /// manage error
-        fidmap: &mut GlobalFieldsIdsMap,
+    bincode::serialize_into(&mut file, &rtree).unwrap();
-        change: &DocumentChange,
+    file.sync_all()?;
-    ) -> Result<()> {
-        match change {
-            DocumentChange::Deletion(_) => todo!(),
-            DocumentChange::Update(_) => todo!(),
-            DocumentChange::Insertion(_) => todo!(),
-        }
-    }
 
-    pub fn serialize_rtree<W: io::Write>(self, writer: &mut W) -> Result<bool> {
+    let rtree_mmap = unsafe { Mmap::map(&file)? };
-        match self.rtree {
+    geo_sender.set_rtree(rtree_mmap).unwrap();
-            Some(rtree) => {
+    geo_sender.set_geo_faceted(&faceted).unwrap();
-                // TODO What should I do?
+
-                bincode::serialize_into(writer, &rtree).map(|_| true).map_err(|e| match *e {
+    Ok(())
-                    ErrorKind::Io(e) => Error::IoError(e),
-                    ErrorKind::InvalidUtf8Encoding(_) => todo!(),
-                    ErrorKind::InvalidBoolEncoding(_) => todo!(),
-                    ErrorKind::InvalidCharEncoding => todo!(),
-                    ErrorKind::InvalidTagEncoding(_) => todo!(),
-                    ErrorKind::DeserializeAnyNotSupported => todo!(),
-                    ErrorKind::SizeLimit => todo!(),
-                    ErrorKind::SequenceMustHaveLength => todo!(),
-                    ErrorKind::Custom(_) => todo!(),
-                })
-            }
-            None => Ok(false),
-        }
-    }
 }
 
 #[tracing::instrument(level = "trace", skip_all, target = "indexing::merge")]

crates/milli/src/update/new/vector_document.rs

@@ -12,7 +12,7 @@ use super::indexer::de::DeserrRawValue;
 use crate::documents::FieldIdMapper;
 use crate::index::IndexEmbeddingConfig;
 use crate::vector::parsed_vectors::{
-    RawVectors, VectorOrArrayOfVectors, RESERVED_VECTORS_FIELD_NAME,
+    RawVectors, RawVectorsError, VectorOrArrayOfVectors, RESERVED_VECTORS_FIELD_NAME,
 };
 use crate::vector::{ArroyWrapper, Embedding, EmbeddingConfigs};
 use crate::{DocumentId, Index, InternalError, Result, UserError};
@@ -71,6 +71,7 @@ pub struct VectorEntry<'doc> {
     pub has_configured_embedder: bool,
     pub embeddings: Option<Embeddings<'doc>>,
     pub regenerate: bool,
+    pub implicit: bool,
 }
 
 pub trait VectorDocument<'doc> {
@@ -125,6 +126,7 @@ impl<'t> VectorDocumentFromDb<'t> {
             has_configured_embedder: true,
             embeddings: Some(Embeddings::FromDb(vectors)),
             regenerate: !config.user_provided.contains(self.docid),
+            implicit: false,
         })
     }
 }
@@ -141,7 +143,14 @@ impl<'t> VectorDocument<'t> for VectorDocumentFromDb<'t> {
                 Ok((&*config_name, entry))
             })
             .chain(self.vectors_field.iter().flat_map(|map| map.iter()).map(|(name, value)| {
-                Ok((name, entry_from_raw_value(value, false).map_err(InternalError::SerdeJson)?))
+                Ok((
+                    name,
+                    entry_from_raw_value(value, false).map_err(|_| {
+                        InternalError::Serialization(crate::SerializationError::Decoding {
+                            db_name: Some(crate::index::db_name::VECTOR_ARROY),
+                        })
+                    })?,
+                ))
             }))
     }
 
@@ -153,43 +162,71 @@ impl<'t> VectorDocument<'t> for VectorDocumentFromDb<'t> {
                 Some(self.entry_from_db(embedder_id, config)?)
             }
             None => match self.vectors_field.as_ref().and_then(|obkv| obkv.get(key)) {
-                Some(embedding_from_doc) => Some(
+                Some(embedding_from_doc) => {
-                    entry_from_raw_value(embedding_from_doc, false)
+                    Some(entry_from_raw_value(embedding_from_doc, false).map_err(|_| {
-                        .map_err(InternalError::SerdeJson)?,
+                        InternalError::Serialization(crate::SerializationError::Decoding {
-                ),
+                            db_name: Some(crate::index::db_name::VECTOR_ARROY),
+                        })
+                    })?)
+                }
                 None => None,
             },
         })
     }
 }
 
+fn entry_from_raw_value_user<'doc>(
+    external_docid: &str,
+    embedder_name: &str,
+    value: &'doc RawValue,
+    has_configured_embedder: bool,
+) -> Result<VectorEntry<'doc>> {
+    entry_from_raw_value(value, has_configured_embedder).map_err(|error| {
+        UserError::InvalidVectorsEmbedderConf {
+            document_id: external_docid.to_string(),
+            error: error.msg(embedder_name),
+        }
+        .into()
+    })
+}
+
 fn entry_from_raw_value(
     value: &RawValue,
     has_configured_embedder: bool,
-) -> std::result::Result<VectorEntry<'_>, serde_json::Error> {
+) -> std::result::Result<VectorEntry<'_>, RawVectorsError> {
-    let value: RawVectors = serde_json::from_str(value.get())?;
+    let value: RawVectors = RawVectors::from_raw_value(value)?;
 
     Ok(match value {
         RawVectors::Explicit(raw_explicit_vectors) => VectorEntry {
             has_configured_embedder,
             embeddings: raw_explicit_vectors.embeddings.map(Embeddings::FromJsonExplicit),
             regenerate: raw_explicit_vectors.regenerate,
+            implicit: false,
         },
         RawVectors::ImplicitlyUserProvided(value) => VectorEntry {
             has_configured_embedder,
-            embeddings: Some(Embeddings::FromJsonImplicityUserProvided(value)),
+            // implicitly user provided always provide embeddings
+            // `None` here means that there are no embeddings
+            embeddings: Some(
+                value
+                    .map(Embeddings::FromJsonImplicityUserProvided)
+                    .unwrap_or(Embeddings::FromDb(Default::default())),
+            ),
             regenerate: false,
+            implicit: true,
         },
     })
 }
 
 pub struct VectorDocumentFromVersions<'doc> {
+    external_document_id: &'doc str,
     vectors: RawMap<'doc>,
     embedders: &'doc EmbeddingConfigs,
 }
 
 impl<'doc> VectorDocumentFromVersions<'doc> {
     pub fn new(
+        external_document_id: &'doc str,
         versions: &Versions<'doc>,
         bump: &'doc Bump,
         embedders: &'doc EmbeddingConfigs,
@@ -198,7 +235,7 @@ impl<'doc> VectorDocumentFromVersions<'doc> {
         if let Some(vectors_field) = document.vectors_field()? {
             let vectors =
                 RawMap::from_raw_value(vectors_field, bump).map_err(UserError::SerdeJson)?;
-            Ok(Some(Self { vectors, embedders }))
+            Ok(Some(Self { external_document_id, vectors, embedders }))
         } else {
             Ok(None)
         }
@@ -208,16 +245,24 @@ impl<'doc> VectorDocumentFromVersions<'doc> {
 impl<'doc> VectorDocument<'doc> for VectorDocumentFromVersions<'doc> {
     fn iter_vectors(&self) -> impl Iterator<Item = Result<(&'doc str, VectorEntry<'doc>)>> {
         self.vectors.iter().map(|(embedder, vectors)| {
-            let vectors = entry_from_raw_value(vectors, self.embedders.contains(embedder))
+            let vectors = entry_from_raw_value_user(
-                .map_err(UserError::SerdeJson)?;
+                self.external_document_id,
+                embedder,
+                vectors,
+                self.embedders.contains(embedder),
+            )?;
             Ok((embedder, vectors))
         })
     }
 
     fn vectors_for_key(&self, key: &str) -> Result<Option<VectorEntry<'doc>>> {
         let Some(vectors) = self.vectors.get(key) else { return Ok(None) };
-        let vectors = entry_from_raw_value(vectors, self.embedders.contains(key))
+        let vectors = entry_from_raw_value_user(
-            .map_err(UserError::SerdeJson)?;
+            self.external_document_id,
+            key,
+            vectors,
+            self.embedders.contains(key),
+        )?;
         Ok(Some(vectors))
     }
 }
@@ -228,8 +273,10 @@ pub struct MergedVectorDocument<'doc> {
 }
 
 impl<'doc> MergedVectorDocument<'doc> {
+    #[allow(clippy::too_many_arguments)]
     pub fn with_db<Mapper: FieldIdMapper>(
         docid: DocumentId,
+        external_document_id: &'doc str,
         index: &'doc Index,
         rtxn: &'doc RoTxn,
         db_fields_ids_map: &'doc Mapper,
@@ -238,16 +285,20 @@ impl<'doc> MergedVectorDocument<'doc> {
         embedders: &'doc EmbeddingConfigs,
     ) -> Result<Option<Self>> {
         let db = VectorDocumentFromDb::new(docid, index, rtxn, db_fields_ids_map, doc_alloc)?;
-        let new_doc = VectorDocumentFromVersions::new(versions, doc_alloc, embedders)?;
+        let new_doc =
+            VectorDocumentFromVersions::new(&external_document_id, versions, doc_alloc, embedders)?;
         Ok(if db.is_none() && new_doc.is_none() { None } else { Some(Self { new_doc, db }) })
     }
 
     pub fn without_db(
+        external_document_id: &'doc str,
         versions: &Versions<'doc>,
         doc_alloc: &'doc Bump,
         embedders: &'doc EmbeddingConfigs,
     ) -> Result<Option<Self>> {
-        let Some(new_doc) = VectorDocumentFromVersions::new(versions, doc_alloc, embedders)? else {
+        let Some(new_doc) =
+            VectorDocumentFromVersions::new(external_document_id, versions, doc_alloc, embedders)?
+        else {
             return Ok(None);
         };
         Ok(Some(Self { new_doc: Some(new_doc), db: None }))

crates/milli/src/vector/hf.rs

@@ -183,14 +183,17 @@ impl Embedder {
         let token_ids = if token_ids.len() > 512 { &token_ids[..512] } else { token_ids };
         let token_ids =
             Tensor::new(token_ids, &self.model.device).map_err(EmbedError::tensor_shape)?;
+        let token_ids = Tensor::stack(&[token_ids], 0).map_err(EmbedError::tensor_shape)?;
         let token_type_ids = token_ids.zeros_like().map_err(EmbedError::tensor_shape)?;
         let embeddings =
             self.model.forward(&token_ids, &token_type_ids).map_err(EmbedError::model_forward)?;
 
         // Apply some avg-pooling by taking the mean embedding value for all tokens (including padding)
-        let (n_tokens, _hidden_size) = embeddings.dims2().map_err(EmbedError::tensor_shape)?;
+        let (_n_sentence, n_tokens, _hidden_size) =
-        let embedding = (embeddings.sum(0).map_err(EmbedError::tensor_value)? / (n_tokens as f64))
+            embeddings.dims3().map_err(EmbedError::tensor_shape)?;
+        let embedding = (embeddings.sum(1).map_err(EmbedError::tensor_value)? / (n_tokens as f64))
             .map_err(EmbedError::tensor_shape)?;
+        let embedding = embedding.squeeze(0).map_err(EmbedError::tensor_shape)?;
         let embedding: Embedding = embedding.to_vec1().map_err(EmbedError::tensor_shape)?;
         Ok(embedding)
     }

crates/milli/src/vector/mod.rs

@@ -648,7 +648,7 @@ impl Embedder {
             Embedder::HuggingFace(embedder) => embedder.chunk_count_hint(),
             Embedder::OpenAi(embedder) => embedder.chunk_count_hint(),
             Embedder::Ollama(embedder) => embedder.chunk_count_hint(),
-            Embedder::UserProvided(_) => 1,
+            Embedder::UserProvided(_) => 100,
             Embedder::Rest(embedder) => embedder.chunk_count_hint(),
         }
     }

crates/milli/src/vector/ollama.rs

@@ -113,7 +113,7 @@ impl Embedder {
         threads
             .install(move || {
                 let embeddings: Result<Vec<Vec<Embedding>>, _> = texts
-                    .par_chunks(self.chunk_count_hint())
+                    .par_chunks(self.prompt_count_in_chunk_hint())
                     .map(move |chunk| self.embed(chunk))
                     .collect();
 

crates/milli/src/vector/openai.rs

@@ -266,7 +266,7 @@ impl Embedder {
         threads
             .install(move || {
                 let embeddings: Result<Vec<Vec<Embedding>>, _> = texts
-                    .par_chunks(self.chunk_count_hint())
+                    .par_chunks(self.prompt_count_in_chunk_hint())
                     .map(move |chunk| self.embed(chunk))
                     .collect();
 

crates/milli/src/vector/parsed_vectors.rs

@@ -12,11 +12,248 @@ use crate::{DocumentId, FieldId, InternalError, UserError};
 
 pub const RESERVED_VECTORS_FIELD_NAME: &str = "_vectors";
 
-#[derive(serde::Serialize, serde::Deserialize, Debug)]
+#[derive(serde::Serialize, Debug)]
 #[serde(untagged)]
 pub enum RawVectors<'doc> {
     Explicit(#[serde(borrow)] RawExplicitVectors<'doc>),
-    ImplicitlyUserProvided(#[serde(borrow)] &'doc RawValue),
+    ImplicitlyUserProvided(#[serde(borrow)] Option<&'doc RawValue>),
+}
+
+pub enum RawVectorsError {
+    DeserializeSeq { index: usize, error: String },
+    DeserializeKey { error: String },
+    DeserializeRegenerate { error: String },
+    DeserializeEmbeddings { error: String },
+    UnknownField { field: String },
+    MissingRegenerate,
+    WrongKind { kind: &'static str, value: String },
+    Parsing(serde_json::Error),
+}
+
+impl RawVectorsError {
+    pub fn msg(self, embedder_name: &str) -> String {
+        match self {
+            RawVectorsError::DeserializeSeq { index, error } => format!(
+                "Could not parse `._vectors.{embedder_name}[{index}]`: {error}"
+            ),
+            RawVectorsError::DeserializeKey { error } => format!(
+                "Could not parse a field at `._vectors.{embedder_name}`: {error}"
+            ),
+            RawVectorsError::DeserializeRegenerate { error } => format!(
+                "Could not parse `._vectors.{embedder_name}.regenerate`: {error}"
+            ),
+            RawVectorsError::DeserializeEmbeddings { error } => format!(
+                "Could not parse `._vectors.{embedder_name}.embeddings`: {error}"
+            ),
+            RawVectorsError::UnknownField { field } => format!(
+                "Unexpected field `._vectors.{embedder_name}.{field}`\n  \
+                  - note: the allowed fields are `regenerate` and `embeddings`"
+            ),
+            RawVectorsError::MissingRegenerate => format!(
+                "Missing field `._vectors.{embedder_name}.regenerate`\n  \
+                - note: `._vectors.{embedder_name}` must be an array of floats, an array of arrays of floats, or an object with field `regenerate`"
+            ),
+            RawVectorsError::WrongKind { kind, value } => format!(
+                "Expected `._vectors.{embedder_name}` to be an array of floats, an array of arrays of floats, or an object with at least the field `regenerate`, but got the {kind} `{value}`"
+            ),
+            RawVectorsError::Parsing(error) => format!(
+                "Could not parse `._vectors.{embedder_name}`: {error}"
+            ),
+        }
+    }
+}
+
+impl<'doc> RawVectors<'doc> {
+    pub fn from_raw_value(raw: &'doc RawValue) -> Result<Self, RawVectorsError> {
+        use serde::de::Deserializer as _;
+        Ok(match raw.deserialize_any(RawVectorsVisitor).map_err(RawVectorsError::Parsing)?? {
+            RawVectorsVisitorValue::ImplicitNone => RawVectors::ImplicitlyUserProvided(None),
+            RawVectorsVisitorValue::Implicit => RawVectors::ImplicitlyUserProvided(Some(raw)),
+            RawVectorsVisitorValue::Explicit { regenerate, embeddings } => {
+                RawVectors::Explicit(RawExplicitVectors { embeddings, regenerate })
+            }
+        })
+    }
+}
+
+struct RawVectorsVisitor;
+
+enum RawVectorsVisitorValue<'doc> {
+    ImplicitNone,
+    Implicit,
+    Explicit { regenerate: bool, embeddings: Option<&'doc RawValue> },
+}
+
+impl<'doc> serde::de::Visitor<'doc> for RawVectorsVisitor {
+    type Value = std::result::Result<RawVectorsVisitorValue<'doc>, RawVectorsError>;
+
+    fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
+        write!(formatter, "a map containing at least `regenerate`, or an array of floats`")
+    }
+
+    fn visit_none<E>(self) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        Ok(Ok(RawVectorsVisitorValue::ImplicitNone))
+    }
+
+    fn visit_some<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
+    where
+        D: serde::Deserializer<'doc>,
+    {
+        deserializer.deserialize_any(self)
+    }
+
+    fn visit_unit<E>(self) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        Ok(Ok(RawVectorsVisitorValue::ImplicitNone))
+    }
+
+    fn visit_seq<A>(self, mut seq: A) -> Result<Self::Value, A::Error>
+    where
+        A: serde::de::SeqAccess<'doc>,
+    {
+        let mut index = 0;
+        // must consume all elements or parsing fails
+        loop {
+            match seq.next_element::<&RawValue>() {
+                Ok(Some(_)) => index += 1,
+                Err(error) => {
+                    return Ok(Err(RawVectorsError::DeserializeSeq {
+                        index,
+                        error: error.to_string(),
+                    }))
+                }
+                Ok(None) => break,
+            };
+        }
+        Ok(Ok(RawVectorsVisitorValue::Implicit))
+    }
+
+    fn visit_map<A>(self, mut map: A) -> Result<Self::Value, A::Error>
+    where
+        A: serde::de::MapAccess<'doc>,
+    {
+        let mut regenerate = None;
+        let mut embeddings = None;
+        loop {
+            match map.next_key::<&str>() {
+                Ok(Some("regenerate")) => {
+                    let value: bool = match map.next_value() {
+                        Ok(value) => value,
+                        Err(error) => {
+                            return Ok(Err(RawVectorsError::DeserializeRegenerate {
+                                error: error.to_string(),
+                            }))
+                        }
+                    };
+                    regenerate = Some(value);
+                }
+                Ok(Some("embeddings")) => {
+                    let value: &RawValue = match map.next_value() {
+                        Ok(value) => value,
+                        Err(error) => {
+                            return Ok(Err(RawVectorsError::DeserializeEmbeddings {
+                                error: error.to_string(),
+                            }))
+                        }
+                    };
+                    embeddings = Some(value);
+                }
+                Ok(Some(other)) => {
+                    return Ok(Err(RawVectorsError::UnknownField { field: other.to_string() }))
+                }
+                Ok(None) => break,
+                Err(error) => {
+                    return Ok(Err(RawVectorsError::DeserializeKey { error: error.to_string() }))
+                }
+            }
+        }
+        let Some(regenerate) = regenerate else {
+            return Ok(Err(RawVectorsError::MissingRegenerate));
+        };
+        Ok(Ok(RawVectorsVisitorValue::Explicit { regenerate, embeddings }))
+    }
+
+    fn visit_bool<E>(self, v: bool) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        Ok(Err(RawVectorsError::WrongKind { kind: "boolean", value: v.to_string() }))
+    }
+
+    fn visit_i64<E>(self, v: i64) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        Ok(Err(RawVectorsError::WrongKind { kind: "integer", value: v.to_string() }))
+    }
+
+    fn visit_i128<E>(self, v: i128) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        Ok(Err(RawVectorsError::WrongKind { kind: "integer", value: v.to_string() }))
+    }
+
+    fn visit_u64<E>(self, v: u64) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        Ok(Err(RawVectorsError::WrongKind { kind: "integer", value: v.to_string() }))
+    }
+
+    fn visit_u128<E>(self, v: u128) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        Ok(Err(RawVectorsError::WrongKind { kind: "integer", value: v.to_string() }))
+    }
+
+    fn visit_f64<E>(self, v: f64) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        Ok(Err(RawVectorsError::WrongKind { kind: "number", value: v.to_string() }))
+    }
+
+    fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        Ok(Err(RawVectorsError::WrongKind { kind: "string", value: v.to_string() }))
+    }
+
+    fn visit_string<E>(self, v: String) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        Ok(Err(RawVectorsError::WrongKind { kind: "string", value: v }))
+    }
+
+    fn visit_bytes<E>(self, v: &[u8]) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        Ok(Err(RawVectorsError::WrongKind { kind: "bytes", value: format!("{v:?}") }))
+    }
+
+    fn visit_newtype_struct<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
+    where
+        D: serde::Deserializer<'doc>,
+    {
+        deserializer.deserialize_any(self)
+    }
+
+    fn visit_enum<A>(self, _data: A) -> Result<Self::Value, A::Error>
+    where
+        A: serde::de::EnumAccess<'doc>,
+    {
+        Ok(Err(RawVectorsError::WrongKind { kind: "enum", value: "a variant".to_string() }))
+    }
 }
 
 #[derive(serde::Serialize, Debug)]
@@ -86,7 +323,7 @@ impl<'doc> RawVectors<'doc> {
     }
     pub fn embeddings(&self) -> Option<&'doc RawValue> {
         match self {
-            RawVectors::ImplicitlyUserProvided(embeddings) => Some(embeddings),
+            RawVectors::ImplicitlyUserProvided(embeddings) => *embeddings,
             RawVectors::Explicit(RawExplicitVectors { embeddings, regenerate: _ }) => *embeddings,
         }
     }
@@ -258,7 +495,7 @@ impl Error {
             Error::InvalidEmbedderConf { error } => {
                 crate::Error::UserError(UserError::InvalidVectorsEmbedderConf {
                     document_id,
-                    error,
+                    error: error.to_string(),
                 })
             }
             Error::InternalSerdeJson(error) => {

crates/milli/src/vector/rest.rs

@@ -193,7 +193,7 @@ impl Embedder {
         threads
             .install(move || {
                 let embeddings: Result<Vec<Vec<Embedding>>, _> = texts
-                    .par_chunks(self.chunk_count_hint())
+                    .par_chunks(self.prompt_count_in_chunk_hint())
                     .map(move |chunk| self.embed_ref(chunk))
                     .collect();