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Introduce searchable fields methods on the index

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Clément Renault 2020-11-01 17:52:04 +01:00
parent 32486b5beb
commit 68d783145b
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1 changed files with 21 additions and 1 deletions
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22
src/index.rs
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@ -18,6 +18,7 @@ pub const DISPLAYED_FIELDS_KEY: &str = "displayed-fields";
pub const DOCUMENTS_IDS_KEY: &str = "documents-ids";
pub const FIELDS_IDS_MAP_KEY: &str = "fields-ids-map";
pub const PRIMARY_KEY_KEY: &str = "primary-key";
pub const SEARCHABLE_FIELDS_KEY: &str = "searchable-fields";
pub const USERS_IDS_DOCUMENTS_IDS_KEY: &str = "users-ids-documents-ids";
pub const WORDS_FST_KEY: &str = "words-fst";
@ -94,7 +95,7 @@ impl Index {
self.main.put::<_, Str, OwnedType<u8>>(wtxn, PRIMARY_KEY_KEY, &primary_key)
}
/// Delete the primary key of the documents, this can be done to reset indexes settings.
/// Deletes the primary key of the documents, this can be done to reset indexes settings.
pub fn delete_primary_key(&self, wtxn: &mut RwTxn) -> heed::Result<bool> {
self.main.delete::<_, Str>(wtxn, PRIMARY_KEY_KEY)
}
@ -155,6 +156,25 @@ impl Index {
self.main.get::<_, Str, ByteSlice>(rtxn, DISPLAYED_FIELDS_KEY)
}
/* searchable fields */
/// Writes the searchable fields, when this list is specified, only these are indexed.
pub fn put_searchable_fields(&self, wtxn: &mut RwTxn, fields: &[u8]) -> heed::Result<()> {
assert!(fields.windows(2).all(|win| win[0] < win[1])); // is sorted
self.main.put::<_, Str, ByteSlice>(wtxn, SEARCHABLE_FIELDS_KEY, fields)
}
/// Deletes the searchable fields, when no fields are specified, all fields are indexed.
pub fn delete_searchable_fields(&self, wtxn: &mut RwTxn) -> heed::Result<bool> {
self.main.delete::<_, Str>(wtxn, SEARCHABLE_FIELDS_KEY)
}
/// Returns the searchable fields ids, those are the fields that are indexed,
/// if the searchable fields aren't there it means that **all** the fields are indexed.
pub fn searchable_fields<'t>(&self, rtxn: &'t RoTxn) -> heed::Result<Option<&'t [u8]>> {
self.main.get::<_, Str, ByteSlice>(rtxn, SEARCHABLE_FIELDS_KEY)
}
/* words fst */
/// Writes the FST which is the words dictionnary of the engine.