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Re: [PATCHES] Minimum selectivity estimate for LIKE 'prefix%'
- From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
- To: Peter Eisentraut <peter_e(at)gmx(dot)net>
- Cc: pgsql-hackers(at)postgresql(dot)org
- Subject: Re: [PATCHES] Minimum selectivity estimate for LIKE 'prefix%'
- Date: Mon, 31 Mar 2008 10:03:49 -0400
Peter Eisentraut <peter_e(at)gmx(dot)net> writes: > OK, first results with this patch are in: The selectivity estimations are > adjusted nicely, but the cost calculation doesn't change at all. Before: I've forgotten the context ... what's the whole query and plan again? And which PG version exactly? regards, tom lane
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