733: Avoid a prefix-related worst-case scenario in the proximity criterion r=loiclec a=loiclec
# Pull Request
## Related issue
Somewhat fixes (until merged into meilisearch) https://github.com/meilisearch/meilisearch/issues/3118
## What does this PR do?
When a query ends with a word and a prefix, such as:
```
word pr
```
Then we first determine whether `pre` *could possibly* be in the proximity prefix database before querying it. There are then three possibilities:
1. `pr` is not in any prefix cache because it is not the prefix of many words. We don't query the proximity prefix database. Instead, we list all the word derivations of `pre` through the FST and query the regular proximity databases.
2. `pr` is in the prefix cache but cannot be found in the proximity prefix databases. **In this case, we partially disable the proximity ranking rule for the pair `word pre`.** This is done as follows:
1. Only find the documents where `word` is in proximity to `pre` **exactly** (no derivations)
2. Otherwise, assume that their proximity in all the documents in which they coexist is >= 8
3. `pr` is in the prefix cache and can be found in the proximity prefix databases. In this case we simply query the proximity prefix databases.
Note that if a prefix is longer than 2 bytes, then it cannot be in the proximity prefix databases. Also, proximities larger than 4 are not present in these databases either. Therefore, the impact on relevancy is:
1. For common prefixes of one or two letters: we no longer distinguish between proximities from 4 to 8
2. For common prefixes of more than two letters: we no longer distinguish between any proximities
3. For uncommon prefixes: nothing changes
Regarding (1), it means that these two documents would be considered equally relevant according to the proximity rule for the query `heard pr` (IF `pr` is the prefix of more than 200 words in the dataset):
```json
[
{ "text": "I heard there is a faster proximity criterion" },
{ "text": "I heard there is a faster but less relevant proximity criterion" }
]
```
Regarding (2), it means that two documents would be considered equally relevant according to the proximity rule for the query "faster pro":
```json
[
{ "text": "I heard there is a faster but less relevant proximity criterion" }
{ "text": "I heard there is a faster proximity criterion" },
]
```
But the following document would be considered more relevant than the two documents above:
```json
{ "text": "I heard there is a faster swimmer who is competing in the pro section of the competition " }
```
Note, however, that this change of behaviour only occurs when using the set-based version of the proximity criterion. In cases where there are fewer than 1000 candidate documents when the proximity criterion is called, this PR does not change anything.
---
## Performance
I couldn't use the existing search benchmarks to measure the impact of the PR, but I did some manual tests with the `songs` benchmark dataset.
```
1. 10x 'a':
- 640ms ⟹ 630ms = no significant difference
2. 10x 'b':
- set-based: 4.47s ⟹ 7.42 = bad, ~2x regression
- dynamic: 1s ⟹ 870 ms = no significant difference
3. 'Someone I l':
- set-based: 250ms ⟹ 12 ms = very good, x20 speedup
- dynamic: 21ms ⟹ 11 ms = good, x2 speedup
4. 'billie e':
- set-based: 623ms ⟹ 2ms = very good, x300 speedup
- dynamic: ~4ms ⟹ 4ms = no difference
5. 'billie ei':
- set-based: 57ms ⟹ 20ms = good, ~2x speedup
- dynamic: ~4ms ⟹ ~2ms. = no significant difference
6. 'i am getting o'
- set-based: 300ms ⟹ 60ms = very good, 5x speedup
- dynamic: 30ms ⟹ 6ms = very good, 5x speedup
7. 'prologue 1 a 1:
- set-based: 3.36s ⟹ 120ms = very good, 30x speedup
- dynamic: 200ms ⟹ 30ms = very good, 6x speedup
8. 'prologue 1 a 10':
- set-based: 590ms ⟹ 18ms = very good, 30x speedup
- dynamic: 82ms ⟹ 35ms = good, ~2x speedup
```
Performance is often significantly better, but there is also one regression in the set-based implementation with the query `b b b b b b b b b b`.
Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
732: Interpret synonyms as phrases r=loiclec a=loiclec
# Pull Request
## Related issue
Fixes (when merged into meilisearch) https://github.com/meilisearch/meilisearch/issues/3125
## What does this PR do?
We now map multi-word synonyms to phrases instead of loose words. Such that the request:
```
btw I am going to nyc soon
```
is interpreted as (when the synonym interpretation is chosen for both `btw` and `nyc`):
```
"by the way" I am going to "New York City" soon
```
instead of:
```
by the way I am going to New York City soon
```
This prevents queries containing multi-word synonyms to exceed to word length limit and degrade the search performance.
In terms of relevancy, there is a debate to have. I personally think this could be considered an improvement, since it would be strange for a user to search for:
```
good DIY project
```
and have a result such as:
```
{
"text": "whether it is a good project to do, you'll have to decide for yourself"
}
```
However, for synonyms such as `NYC -> New York City`, then we will stop matching documents where `New York` is separated from `City`. This is however solvable by adding an additional mapping: `NYC -> New York`.
## Performance
With the old behaviour, some long search requests making heavy uses of synonyms could take minutes to be executed. This is no longer the case, these search requests now take an average amount of time to be resolved.
Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
3296: Remove `--disable-auto-batching` CLI option r=gmourier a=loiclec
Fixes#3294
The `index-scheduler` code is not modified, only the CLI options have changed.
Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
736: Update charabia r=curquiza a=ManyTheFish
Update Charabia to the last version.
> We are now Romanizing Chinese characters into Pinyin.
> Note that we keep the accent because they are in fact never typed directly by the end-user, moreover, changing an accent leads to a different Chinese character, and I don't have sufficient knowledge to forecast the impact of removing accents in this context.
Co-authored-by: ManyTheFish <many@meilisearch.com>
758: Bump taiki-e/install-action from 1 to 2 r=curquiza a=dependabot[bot]
Bumps [taiki-e/install-action](https://github.com/taiki-e/install-action) from 1 to 2.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/taiki-e/install-action/releases">taiki-e/install-action's releases</a>.</em></p>
<blockquote>
<h2>2.0.0</h2>
<p>This release implements a mechanism to automatically track the latest version of the tool on our end. (<a href="https://github-redirect.dependabot.com/taiki-e/install-action/pull/27">#27</a>)
Hopefully, this will avoid situations such as "new version of the tool has been released, but the maintainer has not been aware of it for a number of months".
This also makes it easier to add support for new tools.</p>
<p>This release also includes the following improvements:</p>
<ul>
<li>
<p>Verify SHA256 checksums for downloaded files in all tools installed from GH releases. (<a href="https://github-redirect.dependabot.com/taiki-e/install-action/pull/27">#27</a>)</p>
</li>
<li>
<p>Support omitting the patch/minor version in all tools installed from GH releases. (<a href="https://github-redirect.dependabot.com/taiki-e/install-action/pull/27">#27</a>)</p>
<p>For example:</p>
<pre lang="yaml"><code>- uses: taiki-e/install-action@v2
with:
tool: cargo-hack@0.5
</code></pre>
<p>You can also omit the minor version if the major version of tool is 1 or greater.</p>
</li>
<li>
<p>Support <code>just</code>. (<a href="https://github-redirect.dependabot.com/taiki-e/install-action/pull/34">#34</a>)</p>
</li>
<li>
<p>Support <code>dprint</code>. (<a href="https://github-redirect.dependabot.com/taiki-e/install-action/pull/34">#34</a>)</p>
</li>
</ul>
<p>Note: This release is considered a breaking change because installing on versions not yet recognized by the action or on pre-release versions will no longer work with this release. (They were never officially supported, but they could work before.) Please submit an issue if you need these supports again.</p>
<h2>1.17.3</h2>
<ul>
<li>Update <code>wasmtime@latest</code> to 4.0.0.</li>
</ul>
<h2>1.17.2</h2>
<ul>
<li>Update <code>mdbook@latest</code> to 0.4.25.</li>
</ul>
<h2>1.17.1</h2>
<ul>
<li>Update <code>mdbook@latest</code> to 0.4.23.</li>
<li>Support <code>mdbook</code> on Linux (musl).</li>
<li>Update <code>cargo-llvm-cov@latest</code> to 0.5.3.</li>
</ul>
<h2>1.17.0</h2>
<ul>
<li>Update <code>protoc@latest</code> to 3.21.12.</li>
<li>Support aarch64 self-hosted runners (Linux, macOS, Windows).</li>
<li>Improve support for Fedora/RHEL based containers/self-hosted runners.</li>
</ul>
<h2>1.16.0</h2>
<ul>
<li>
<p>Update <code>cargo-binstall@latest</code> to 0.18.1. (<a href="https://github-redirect.dependabot.com/taiki-e/install-action/pull/32">#32</a>, thanks <a href="https://github.com/NobodyXu"><code>`@NobodyXu</code></a>)</p>`
</li>
<li>
<p>If the host environment lacks packages required for installation, such as <code>curl</code> or <code>tar</code>, install them if possible.</p>
<p>It is mainly intended to make the use of this action easy on containers or self-hosted runners, and currently supports Debian-based distributions (including Ubuntu) and Alpine.</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/taiki-e/install-action/blob/main/CHANGELOG.md">taiki-e/install-action's changelog</a>.</em></p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="8ffc26aecd"><code>8ffc26a</code></a> Release 2.0.1</li>
<li><a href="82e9eb5996"><code>82e9eb5</code></a> Update DEVELOPMENT.md</li>
<li><a href="d3b7ad8380"><code>d3b7ad8</code></a> Update changelog</li>
<li><a href="f1a96ee3ed"><code>f1a96ee</code></a> Update changelog when manifest update</li>
<li><a href="46063c186c"><code>46063c1</code></a> Update cargo-minimal-versions</li>
<li><a href="048586d7a8"><code>048586d</code></a> Update cargo-hack</li>
<li><a href="d117b8d41a"><code>d117b8d</code></a> Remove outdated todo</li>
<li><a href="76828c33cd"><code>76828c3</code></a> Release 2.0.0</li>
<li><a href="eea8c318de"><code>eea8c31</code></a> Update readme and changelog</li>
<li><a href="ab0e193cf5"><code>ab0e193</code></a> Support dprint</li>
<li>Additional commits viewable in <a href="https://github.com/taiki-e/install-action/compare/v1...v2">compare view</a></li>
</ul>
</details>
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
3279: Clarify error message when the db and engine versions are incompatible r=irevoire a=dureuill
# Pull Request
## Related issue
Related to https://github.com/meilisearch/meilisearch/issues/2752
## What does this PR do?
- Implements https://github.com/meilisearch/product/discussions/572#discussioncomment-4390616
## PR checklist
Please check if your PR fulfills the following requirements:
- [ ] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [x] Have you read the contributing guidelines?
- [x] Have you made sure that the title is accurate and descriptive of the changes?
Thank you so much for contributing to Meilisearch!
Co-authored-by: Louis Dureuil <louis@meilisearch.com>
3274: Reject master keys that are less than 16 bytes and add `--generate-master-key` CLI option r=irevoire a=dureuill
# Pull Request
## Related issue
Fix#3272Fix#3287
## What does this PR do?
### User standpoint
---
- Adds a `--generate-master-key` CLI flag to generate a fresh Master Key and exit.
<img width="1351" alt="Capture d’écran 2022-12-22 à 14 18 58" src="https://user-images.githubusercontent.com/41078892/209142778-eab52eeb-eaa8-409b-897a-c0d5728c8aaa.png">
---
(relevant fragment of the `--help` message)
<img width="1351" alt="Capture d’écran 2022-12-22 à 14 19 40" src="https://user-images.githubusercontent.com/41078892/209142891-ebfa2ed6-f231-4f76-a3ae-b7542c7aef04.png">
---
- When `meilisearch` is started in the `development` environment and no Master Key has been provided, then the binary prints a warning before starting.
<img width="1351" alt="Capture d’écran 2022-12-22 à 14 14 49" src="https://user-images.githubusercontent.com/41078892/209142158-54eba3b7-bf71-4f3f-8840-0600b13a1a9f.png">
---
- When `meilisearch` is started in the `development` environment and the provided Master Key is shorter than 16 bytes, then the binary prints a warning before starting.
<img width="1351" alt="Capture d’écran 2022-12-22 à 14 15 58" src="https://user-images.githubusercontent.com/41078892/209142295-0209fe47-c03b-424f-a73f-cee9b633137a.png">
---
- When `meilisearch` is started in the `production` environment, and no Master Key is provided, the error message is altered to generate a fresh Master Key.
<img width="1351" alt="Capture d’écran 2022-12-22 à 17 29 02" src="https://user-images.githubusercontent.com/41078892/209180540-0def5798-15db-47f0-a6ec-8cfa081dea77.png">
---
- When `meilisearch` is started in the `production` environment, and the provided Master Key is shorter than 16 bytes, then the binary exits with an error.
<img width="1351" alt="Capture d’écran 2022-12-22 à 17 28 47" src="https://user-images.githubusercontent.com/41078892/209180567-fa54fe33-fbc4-4b9f-b281-7dfb7b33af85.png">
---
This implements the solution B described here: https://github.com/meilisearch/product/discussions/538#discussioncomment-4391346
### Implementation standpoint
- Add a new `meilisearch-auth::generate_master_key` function that uses a Cryptographic Random Number Generator (CRNG) to fill a vector of 32 bytes before encoding these bytes as base64
## PR checklist
Please check if your PR fulfills the following requirements:
- [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [x] Have you read the contributing guidelines?
- [x] Have you made sure that the title is accurate and descriptive of the changes?
Thank you so much for contributing to Meilisearch!
Co-authored-by: Louis Dureuil <louis@meilisearch.com>
Co-authored-by: Tamo <tamo@meilisearch.com>
3245: Enable create_raw_index(...) to specify time r=irevoire a=amab8901
# Pull Request
## Related issue
Partially fixes#2983
## What does this PR do?
- Enables [`create_raw_index`](660be071b5/index-scheduler/src/lib.rs (L868)) to specify time
## PR checklist
Please check if your PR fulfills the following requirements:
- [ X ] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [ X ] Have you read the contributing guidelines?
- [ X ] Have you made sure that the title is accurate and descriptive of the changes?
Thank you so much for contributing to Meilisearch!
Co-authored-by: amab8901 <amab8901@protonmail.com>
709: Optimise the `ExactWords` sub-criterion within `Exactness` r=loiclec a=loiclec
# Pull Request
## Related issue
Fixes (partially) https://github.com/meilisearch/meilisearch/issues/3116
## What does this PR do?
1. Reduces the algorithmic complexity of finding the documents containing N exact words from something that is exponential to something that is polynomial.
2. Cache intermediary results between different calls to the `exactness` criterion.
## Performance Results
On the `smol_songs.csv` dataset, a request containing 10 common words now takes about 60ms instead of 5 seconds to execute. For example, this is the case with this (admittedly nonsensical) request: `Rock You Hip Hop Folk World Country Electronic Love The`.
Co-authored-by: Loïc Lecrenier <loic.lecrenier@me.com>
752: Simplify primary key inference r=irevoire a=dureuill
# Pull Request
## Related issue
Related to https://github.com/meilisearch/meilisearch/issues/3233
## What does this PR do?
### User PoV
- Change primary key inference to only consider a value as a candidate when it ends with "id", rather than when it simply contains "id".
- Change primary key inference to always fail when there are multiple candidates.
- Replace UserError::MissingPrimaryKey with `UserError::NoPrimaryKeyCandidateFound` and `UserError::MultiplePrimaryKeyCandidatesFound`
### Implementation-wise
- Remove uses of UserError::MissingPrimaryKey not pertaining to inference. This introduces a possible panicking path.
## PR checklist
Please check if your PR fulfills the following requirements:
- [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [x] Have you read the contributing guidelines?
- [x] Have you made sure that the title is accurate and descriptive of the changes?
Thank you so much for contributing to Meilisearch!
Co-authored-by: Louis Dureuil <louis@meilisearch.com>
3276: README: Replace Slack link with Discord r=dureuill a=shivaylamba
# Pull Request
## Related issue
Fixes#3275
## What does this PR do?
Update Slack link with Discord link in the README
## PR checklist
Please check if your PR fulfills the following requirements:
- [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [x] Have you read the contributing guidelines?
- [x] Have you made sure that the title is accurate and descriptive of the changes?
Thank you so much for contributing to Meilisearch!
Co-authored-by: Shivay Lamba <shivaylamba@gmail.com>
Indeed, before this patch we were using the reference instead of
"reopening" the task list each time we needed to access it.
Without this patch, all other usage of the task attribute will
break.
This patch possibly fixes#2986.
This patch introduces a way to fill the IndexMetadata.created_at
and IndexMetadata.updated_at keys from the tasks events.
This is done by reading the creation date of the first event
(created_at) and the creation date of the last event (updated_at).
Displays log message in the form:
```
[2022-12-21T09:19:42Z INFO milli::update::index_documents::enrich] Primary key was not specified in index. Inferred to 'id'
```
Louis Dureuil
