Re: BUG #18607: UNION ALL discards all foreign key relations + indexes
Tom Lane <tgl@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
To: sanskar@flintk12.com
Cc: pgsql-bugs@lists.postgresql.org
Date: 2024-09-09T16:29:40Z
Lists: pgsql-bugs
PG Bug reporting form <noreply@postgresql.org> writes: > CREATE OR REPLACE VIEW v3.temp_view AS > SELECT * FROM users WHERE id = 'e-1' > UNION ALL > SELECT * FROM users WHERE id = 'e-2'; > Either way when the view is created, the indexes and the related relations > of the foreign key references are being dropped. Views do not have either indexes or foreign keys. > What + Why? I am processing the result of the union in another CTE which now > is not having access to indices and so it is performing a seq scan! This seems to be a performance complaint, rather than a valid bug report. You might find it helpful to read https://wiki.postgresql.org/wiki/Slow_Query_Questions regards, tom lane