=?KOI8-U?B?96bUwcymyiD0yc3eydvJzg==?= <tivv00@xxxxxxxxx> writes: > Actually what I am talking about is to make OR with UNION (or UNION-like > because it's a little different depending on input rows uniqueness) as an > option. All of OR parts can use/not use different strategies (including > multiple different idexes or hash joins). AFAICS you're proposing re-inventing the old implementation of OR'd indexscans. We took that out when we added bitmap scans because it didn't have any performance advantage over BitmapOr. regards, tom lane -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
