Sam 1dba1aca27
FIX: add support for PG 14 and up (#20137)
Previously to_tsquery would split terms and join with &

In PG 14 terms are split and use <-> which means followed directly by.

In PG 13:

discourse_test=# SELECT to_tsquery('english', '''hello world''');
     to_tsquery
---------------------
 'hello' & 'world'
(1 row)

In PG 14:

discourse_test=# SELECT to_tsquery('english', '''hello world''');
     to_tsquery
---------------------
 'hello' <-> 'world'
(1 row)


Change is very unobtrosive, we simply amend our to_tsquery to behave like
it used to behave and make no use of the `<->` operator


More detail at: https://akorotkov.github.io/blog/2021/05/22/pg-14-query-parsing/

Note that plainto_tsquery used elsewhere in Discourse keeps the exact
same function.

This also corrects a faulty test that was passing by a fluke on older
version of PG
2023-02-03 08:11:25 +11:00
..