mirror of
https://git.pleroma.social/pleroma/pleroma.git
synced 2024-12-23 00:26:30 +00:00
42 lines
2.3 KiB
Markdown
42 lines
2.3 KiB
Markdown
# How to enable text search for Chinese, Japanese and Korean
|
|
|
|
Pleroma's full text search feature is powered by PostgreSQL's native [text search](https://www.postgresql.org/docs/current/textsearch.html), it works well out of box for most of languages, but needs extra configurations for some asian languages like Chinese, Japanese and Korean (CJK).
|
|
|
|
|
|
## Setup and test the new search config
|
|
|
|
In most cases, you would need an extension installed to support parsing CJK text. Here are a few extensions you may choose from, or you are more than welcome to share additional ones you found working for you with the rest of Pleroma community.
|
|
|
|
* [a generic n-gram parser](https://github.com/huangjimmy/pg_cjk_parser) supports Simplifed/Traditional Chinese, Japanese, and Korean
|
|
* [a Korean parser](https://github.com/i0seph/textsearch_ko) based on mecab
|
|
* [a Japanese parser](https://www.amris.co.jp/tsja/index.html) based on mecab
|
|
* [zhparser](https://github.com/amutu/zhparser/) is a PostgreSQL extension base on the Simple Chinese Word Segmentation(SCWS)
|
|
* [another Chinese parser](https://github.com/jaiminpan/pg_jieba) based on Jieba Chinese Word Segmentation
|
|
|
|
Once you have the new search config , make sure you test it with the `pleroma` user in PostgreSQL (change `YOUR.CONFIG` to your real configuration name)
|
|
```
|
|
SELECT ts_debug('YOUR.CONFIG', '安装和配置Nginx, ElixirとErlangをインストールします');
|
|
```
|
|
Check output of the query, and see if it matches your expectation.
|
|
|
|
|
|
## Update text search config and index in database
|
|
|
|
=== "OTP"
|
|
|
|
```sh
|
|
./bin/pleroma_ctl database set_text_search_config YOUR.CONFIG
|
|
```
|
|
|
|
=== "From Source"
|
|
|
|
```sh
|
|
mix pleroma.database set_text_search_config YOUR.CONFIG
|
|
```
|
|
|
|
Note: index update may take a while, and it can be done while the instance is up and running, so you may restart db connection as soon as you see `Recreate index` in task output.
|
|
|
|
## Restart database connection
|
|
Since some changes above will only apply with a new database connection, you will have to restart either Pleroma or PostgreSQL process, or use `pg_terminate_backend` SQL command without restarting either.
|
|
|
|
Now the search results of statuses should be much more friendly for your language of choice, the results for searching users and tags were not changed, as the default parsing/matching should work for most cases.
|