Hello
2010/12/9 AI Rumman <rummandba@xxxxxxxxx>:
> A simple query I can write in any of the following two ways:
> 1.
> Select col1
> from table
> where col2 in ('A','B');
> 2.
> Select col1
> from table
> where
> Âcol2 = 'A'
> orÂÂcol2 = 'B'
> Here IN condition may be more than two.
> I need to know which one is good for good performance.
> Any idea please.
It depends on real use case. In almost all cases these queries are almost same.
Regards
Pavel Stehule
--
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general
