Re: BUG #18438: regex isnt working for "^" , ".*"
| От | David G. Johnston |
|---|---|
| Тема | Re: BUG #18438: regex isnt working for "^" , ".*" |
| Дата | |
| Msg-id | CAKFQuwYHOkn=ZxEw0EUvUhjhHBpR91E1nm3iSsfUUHoqFA+7Uw@mail.gmail.com обсуждение исходный текст |
| Ответ на | BUG #18438: regex isnt working for "^" , ".*" (PG Bug reporting form <noreply@postgresql.org>) |
| Список | pgsql-bugs |
On Mon, Apr 15, 2024 at 1:20 PM PG Bug reporting form <noreply@postgresql.org> wrote:
The following bug has been logged on the website:
Bug reference: 18438
Logged by: Ankur Kumar
Email address: ankurawesome37@gmail.com
PostgreSQL version: 14.5
Operating system: macos ventura version 13.5
Description:
hey , i am getting empty query result while using postgres regex operator
"^" , ".*" etc . I am able to use "%" correctly but not getting any response
for other regex operator
As the opening paragraph of the relevant docs say:
There are three separate approaches to pattern matching provided by PostgreSQL: the traditional SQL LIKE operator, the more recent SIMILAR TO operator (added in SQL:1999), and POSIX-style regular expressions. Aside from the basic “does this string match this pattern?” operators, functions are available to extract or replace matching substrings and to split a string at matching locations.
You are mixing the first and third ones together.
David J.
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