A table has a column "obj_type" which has very low selectivity (let's say 5 choices, with the top choice making up 50% of records). Is there any sense in indexing that column? B-trees won't be that useful, and the docs discourage other index types/ -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
