From: | PG Doc comments form <noreply(at)postgresql(dot)org> |
---|---|
To: | pgsql-docs(at)lists(dot)postgresql(dot)org |
Cc: | splarv(at)ya(dot)ru |
Subject: | prefix match operator ^@ |
Date: | 2020-04-20 16:56:00 |
Message-ID: | 158740176041.11601.7844237687908212295@wrigleys.postgresql.org |
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Lists: | pgsql-docs |
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/12/functions-string.html
Description:
Preparing to upgrade old PostgreSQL and looking changelog, I has found log
about "prefix text match" operator (boosted by SP_GIST):
=> select 'ab' ^@ 'a';
?column?
----------
t
(1 row)
Yes, search on prefix is widely used, indeed. But there is nothing about it
in the documentation. Instead exists only a function "starts_with", may be
this is a different thing. And may be it is not boosted by the index in the
same way, as operator ^(at)(dot) And functionality is duplicated.
At least this operator must be documented.
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