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Introduce an heed codec that reduce the size of small amount of serialized integers

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This commit is contained in:
Kerollmops
2020-09-07 15:42:20 +02:00
committed by Clément Renault
parent 3e2250423c
commit 5664c37539
5 changed files with 50 additions and 14 deletions
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7
src/lib.rs
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@ -15,7 +15,10 @@ use heed::{PolyDatabase, Database};
pub use self::search::{Search, SearchResult};
pub use self::criterion::{Criterion, default_criteria};
pub use self::heed_codec::{RoaringBitmapCodec, BEU32StrCodec, CsvStringRecordCodec};
pub use self::heed_codec::{
RoaringBitmapCodec, BEU32StrCodec, CsvStringRecordCodec,
ByteorderXRoaringBitmapCodec,
};
pub type FastMap4<K, V> = HashMap<K, V, BuildHasherDefault<FxHasher32>>;
pub type FastMap8<K, V> = HashMap<K, V, BuildHasherDefault<FxHasher64>>;
@ -38,7 +41,7 @@ pub struct Index {
/// A word and all the documents ids containing the word.
pub word_docids: Database<Str, RoaringBitmapCodec>,
/// Maps a word and a document id (u32) to all the positions where the given word appears.
pub docid_word_positions: Database<BEU32StrCodec, RoaringBitmapCodec>,
pub docid_word_positions: Database<BEU32StrCodec, ByteorderXRoaringBitmapCodec>,
/// Maps the document id to the document as a CSV line.
pub documents: Database<OwnedType<BEU32>, ByteSlice>,
}