Tom Lane wrote:
>
> Tomasz Myrta <[EMAIL PROTECTED]> writes:
> > Why the first expression is 25 times slower?
>
> Hard to say, when you haven't shown us the schema. (Column datatypes,
> definitions of available indexes, etc are all critical information for
>
I have something like this:
billy=# EXPLAIN SELECT * from kursy where id_trasy=1 and
data_kursu=date('2001-12-12');
NOTICE: QUERY PLAN:
Index Scan using pp on kursy (cost=0.00..51.55 rows=1 width=18)
billy=# EXPLAIN SELECT * from kursy where id_trasy=1
and data_kursu='2001-12-12';
NOTICE:
I have something like this:
billy=# EXPLAIN SELECT * from kursy where id_trasy=1 and
data_kursu=date('2001-12-12');
NOTICE: QUERY PLAN:
Index Scan using pp on kursy (cost=0.00..51.55 rows=1 width=18)
billy=# EXPLAIN SELECT * from kursy where id_trasy=1
and data_kursu='2001-12-12';
NOTICE:
