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add field id word count database

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2021-05-27 15:27:41 +02:00
parent 2f5e61bacb
commit 4ddf008be2
9 changed files with 109 additions and 5 deletions
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22
milli/src/heed_codec/field_id_word_count_codec.rs Normal file
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@ -0,0 +1,22 @@
use std::{borrow::Cow, convert::TryInto};
use crate::FieldId;
pub struct FieldIdWordCountCodec;
impl<'a> heed::BytesDecode<'a> for FieldIdWordCountCodec {
type DItem = (FieldId, u8);
fn bytes_decode(bytes: &'a [u8]) -> Option<Self::DItem> {
let [field_id, word_count]: [u8; 2] = bytes.try_into().ok()?;
Some((field_id, word_count))
}
}
impl<'a> heed::BytesEncode<'a> for FieldIdWordCountCodec {
type EItem = (FieldId, u8);
fn bytes_encode((field_id, word_count): &Self::EItem) -> Option<Cow<[u8]>> {
Some(Cow::Owned(vec![*field_id, *word_count]))
}
}

2
milli/src/heed_codec/mod.rs
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@ -4,6 +4,7 @@ mod roaring_bitmap;
mod roaring_bitmap_length;
mod str_level_position_codec;
mod str_str_u8_codec;
mod field_id_word_count_codec;
pub mod facet;
pub use self::beu32_str_codec::BEU32StrCodec;
@ -12,3 +13,4 @@ pub use self::roaring_bitmap::{BoRoaringBitmapCodec, CboRoaringBitmapCodec, Roar
pub use self::roaring_bitmap_length::{BoRoaringBitmapLenCodec, CboRoaringBitmapLenCodec, RoaringBitmapLenCodec};
pub use self::str_level_position_codec::StrLevelPositionCodec;
pub use self::str_str_u8_codec::StrStrU8Codec;
pub use self::field_id_word_count_codec::FieldIdWordCountCodec;