MeiliSearch/milli
meili-bors[bot] 5509bafff8
Merge #4535
4535: Support Negative Keywords r=ManyTheFish a=Kerollmops

This PR fixes #4422 by supporting `-` before any word in the query.

The minus symbol `-`, from the ASCII table, is not the only character that can be considered the negative operator. You can see the two other matching characters under the `Based on "-" (U+002D)` section on [this unicode reference website](https://www.compart.com/en/unicode/U+002D).

It's important to notice the strange behavior when a query includes and excludes the same word; only the derivative ( synonyms and split) will be kept:
 - If you input `progamer -progamer`, the engine will still search for `pro gamer`.
 - If you have the synonym `like = love` and you input `like -like`, it will still search for `love`.

## TODO
 - [x] Add analytics
 - [x] Add support to the `-` operator
 - [x] Make sure to support spaces around `-` well
 - [x] Support phrase negation
 - [x] Add tests


Co-authored-by: Clément Renault <clement@meilisearch.com>
2024-04-04 13:10:27 +00:00
..
examples implements a first version of the cutoff without settings 2024-03-19 10:28:21 +01:00
src Merge #4535 2024-04-04 13:10:27 +00:00
tests fix the search cutoff and add a test 2024-03-19 10:35:47 +01:00
Cargo.toml Merge #4547 2024-04-03 07:31:36 +00:00
README.md Add a README to the milli crate 2023-01-16 16:25:12 +01:00

the milli logo

a concurrent indexer combined with fast and relevant search algorithms

Introduction

This crate contains the internal engine used by Meilisearch.

It contains a library that can manage one and only one index. Meilisearch manages the multi-index itself. Milli is unable to store updates in a store: it is the job of something else above and this is why it is only able to process one update at a time.