MeiliSearch/milli
bors[bot] 5e754b3ee0
Merge #708
708: Reduce memory usage of the MatchingWords structure r=ManyTheFish a=loiclec

# Pull Request

## Related issue
Fixes (partially) https://github.com/meilisearch/meilisearch/issues/3115 

## What does this PR do?
1. Reduces the memory usage caused by the creation of a 10-word query tree by 20x. 
   This is done by deduplicating the `MatchingWord` values, which are heavy because of their inner DFA. The deduplication works by wrapping each `MatchingWord` in a reference-counted box and using a hash map to determine whether a  `MatchingWord` DFA already exists for a certain signature, or whether a new one needs to be built.
 
2. Avoid the worst-case scenario of creating a `MatchingWord` for extremely long words that cannot be indexed by milli.

Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
2022-11-30 17:47:34 +00:00
..
src Merge #708 2022-11-30 17:47:34 +00:00
tests Merge #659 2022-11-03 15:24:38 +00:00
Cargo.toml Update version for the next release (v0.37.0) in Cargo.toml files 2022-11-17 12:50:07 +00:00