In general, I do not understand why a PK index should not be used when the query can be satisfied by the index itself. Can anyone give some reason to this?
> On 7 Feb 2017, at 0:16, Podrigal, Aron <aronp@guaranteedplus.com> wrote: > > Hi, > > I noticed when I do a simple SELECT id FROM mytable WHERE id = 'cb81d070-4213-465f-b32e-b8db43b83a25'::UUID Postgres does not use the primary key index and opts for a Seq Scan. > > I of course did VACUUM ANALYZE and I have reset statistics But no sign. Is there any particular thing I should be looking at?
An EXPLAIN ANALYZE would be a good start.
Alban Hertroys -- If you can't see the forest for the trees, cut the trees and you'll find there is no forest.
