George Pavlov wrote:
From: Tom Lane [mailto:[EMAIL PROTECTED] "George Pavlov" <[EMAIL PROTECTED]> writes:

to 977ms! If I go the other way and SET STATISTICS 1 (or 0) I can bring
down the list to one entry (setting to 0 seems equivalent and still
keeps the one most common entry!?) and I will get the Index scan for all
states except for that one most common state. But, of course, I don't
want to undermine the whole stats mechanism, I just want the system to
use the index that is so helpful and brings runtimes down by a factor of
4-8! What am I missing here?

In those rare cases wouldn't it make more sense to just set enable_seqscan to off; run query; set enable_seqscan to on;

??

Joshua D. Drake



George

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