Ramesh T schrieb am 20.08.2014 um 17:41:
> Hello,
>
> when i ran following query,
> postgres=# SELECT * FROM pg_stat_statements;
>
>
> ERROR: relation "pg_stat_statements" does not exist
> LINE 1: SELECT * FROM pg_stat_statements;
>
>
> i need to install POWA..i got powa.zip
No, you need to install the extension pg_stat_statements:
http://www.postgresql.org/docs/current/static/pgstatstatements.html
http://www.postgresql.org/docs/current/static/sql-createextension.html