fix the file store

Cargo.lock

@@ -1661,6 +1661,7 @@ dependencies = [
  "actix-rt",
  "anyhow",
  "bincode",
+ "csv",
  "derivative",
  "either",
  "fst",

index-scheduler/Cargo.toml

@@ -8,6 +8,7 @@ edition = "2021"
 [dependencies]
 anyhow = "1.0.64"
 bincode = "1.3.3"
+csv = "1.1.6"
 derivative = "2.2.0"
 either = { version = "1.6.1", features = ["serde"] }
 fst = "0.4.7"

index-scheduler/src/lib.rs

@@ -1,4 +1,5 @@
 mod batch;
+mod document_formats;
 pub mod error;
 pub mod index;
 pub mod task;