PG Doc comments form <nore...@postgresql.org> writes:
> In page https://www.postgresql.org/docs/current/indexes-bitmap-scans.html
> написано следующее:
> "Another example is that if we have separate indexes on x and y, one
> possible implementation of a query like WHERE x = 5 AND y = 6 is to use each
> index with the appropriate query clause and then AND together the index
> results to identify the result rows".
> You mean "WHERE x = 5 OR y = 6"?
No; the query says AND. Unioning the index results would be
appropriate if it said OR, but that's a different topic.
regards, tom lane
