Re: Execution plan changed after upgrade from 7.3.9 to 8.2.3 - Mailing list pgsql-performance

vincent.moreau@leroymerlin.fr wrote:
> Here it is :
>
> CCM=# SHOW enable_mergejoin;
> enable_mergejoin
> ------------------
> on
> (1 row)

Sorry, my question was more general.  Do you have _any_ of the planner
types disabled?  Try also enable_indexscan, etc; maybe

select * from pg_settings where name like 'enable_%';

--
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.