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Code Issues Releases Wiki Activity

Use the De Morgan law to simplify the NOT operation

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Clément Renault 2020-11-23 13:08:57 +01:00
parent 7370ef8c5e
commit fc686aaca7
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9 changed files with 182 additions and 58 deletions
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22
src/index.rs
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@ -18,6 +18,7 @@ use crate::{
pub const DISPLAYED_FIELDS_KEY: &str = "displayed-fields";
pub const DOCUMENTS_IDS_KEY: &str = "documents-ids";
pub const FACETED_DOCUMENTS_IDS_PREFIX: &str = "faceted-documents-ids";
pub const FACETED_FIELDS_KEY: &str = "faceted-fields";
pub const FIELDS_IDS_MAP_KEY: &str = "fields-ids-map";
pub const PRIMARY_KEY_KEY: &str = "primary-key";
@ -224,6 +225,27 @@ impl Index {
Ok(self.main.get::<_, Str, SerdeJson<_>>(wtxn, FACETED_FIELDS_KEY)?.unwrap_or_default())
}
/* faceted documents ids */
/// Writes the documents ids that are faceted under this field id.
pub fn put_faceted_documents_ids(&self, wtxn: &mut RwTxn, field_id: u8, docids: &RoaringBitmap) -> heed::Result<()> {
let mut buffer = [0u8; FACETED_DOCUMENTS_IDS_PREFIX.len() + 1];
buffer[..FACETED_DOCUMENTS_IDS_PREFIX.len()].clone_from_slice(FACETED_DOCUMENTS_IDS_PREFIX.as_bytes());
*buffer.last_mut().unwrap() = field_id;
self.main.put::<_, ByteSlice, RoaringBitmapCodec>(wtxn, &buffer, docids)
}
/// Retrieve all the documents ids that faceted under this field id.
pub fn faceted_documents_ids(&self, rtxn: &RoTxn, field_id: u8) -> heed::Result<RoaringBitmap> {
let mut buffer = [0u8; FACETED_DOCUMENTS_IDS_PREFIX.len() + 1];
buffer[..FACETED_DOCUMENTS_IDS_PREFIX.len()].clone_from_slice(FACETED_DOCUMENTS_IDS_PREFIX.as_bytes());
*buffer.last_mut().unwrap() = field_id;
match self.main.get::<_, ByteSlice, RoaringBitmapCodec>(rtxn, &buffer)? {
Some(docids) => Ok(docids),
None => Ok(RoaringBitmap::new()),
}
}
/* words fst */
/// Writes the FST which is the words dictionnary of the engine.