akkoma/lib
Tusooa Zhu a9984c6da7
Make activity search properly use GIN indexes
The original approach to search in GIN indexes is to use
`to_tsvector(text)` in the WHERE clause of the query. According to
postgres docs [pdoc], this method does not make use of the index,
while `to_tsvector(config, text)` does. This commit changed the
query to use the two-argument `to_tsvector()`.

[pdoc]: https://www.postgresql.org/docs/12/textsearch-tables.html

To obtain the search config in use, we make a query to the db first.
The `::regconfig::oid` hack is needed because Postgrex does not support
regconfig type directly [postgrexbug]. I use the conversion from and to
`oid` instead of `text` because I tested in the actual DB and querying
using the conversion via `text` is slow just as the one-argument
`to_tsvector()` variant.

[postgrexbug]: https://github.com/elixir-ecto/postgrex/issues/502

BUG: https://git.pleroma.social/pleroma/pleroma/-/issues/2758
2021-08-27 22:27:17 -04:00
..
mix Update lib/mix/tasks/pleroma/database.ex 2021-06-07 20:02:28 +00:00
phoenix/transports/web_socket Bump Copyright to 2021 2021-01-13 07:49:50 +01:00
pleroma Make activity search properly use GIN indexes 2021-08-27 22:27:17 -04:00