Re: constraints in query plans

Jeremy Drake <pgsql@jdrake.com> writes:
> CREATE TABLE test_domain (
>  fkey integer not null,
>  k    integer not null,
>  x1   integer not null,
>  x2   integer,
>  mp   m_or_p not null
> );

> CREATE INDEX test_domain_k_x1_x2_m ON test_domain (k, x1, x2) WHERE mp = 'm';
> CREATE INDEX test_domain_k_x1_x2_p ON test_domain (k, x1, x2) WHERE mp = 'p';

Perhaps you need a non-partial index.
        regards, tom lane