On 2/6/17, Podrigal, Aron <aronp@xxxxxxxxxxxxxxxxxx> 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? Postgres uses specified access methods according to table's statistics. If you have a small table, it is likely that Postgres uses SeqScan because it is similar or cheaper than IndexScan. That's why it can ignore existing indexes. -- Best regards, Vitaly Burovoy -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
