Both table Portion by same column call_created_date ________________________________ From: Michael Lewis <mlewis@xxxxxxxxxxx> Sent: 14 February 2019 19:35:48 To: suganthi Sekar Cc: Justin Pryzby; pgsql-performance@xxxxxxxxxxxxxxxxxxxx Subject: Re: constraint exclusion with ineq condition (Re: server hardware tuning.) What are these two tables partitioned by? On Thu, Feb 14, 2019, 5:03 AM suganthi Sekar <suganthi@xxxxxxxxxxxx<mailto:suganthi@xxxxxxxxxxxx> wrote: Hi, Thanks, i know if explicitly we give in where condition it is working. i thought with below parameter in Postgresq11 this issue is fixed ? enable_partitionwise_join to 'on'; what is the use of enable_partitionwise_join to 'on'; Thanks for your response. Regards Suganthi Sekar ________________________________ From: Justin Pryzby <pryzby@xxxxxxxxxxxxx<mailto:pryzby@xxxxxxxxxxxxx>> Sent: 14 February 2019 16:10:01 To: suganthi Sekar Cc: pgsql-performance@xxxxxxxxxxxxxxxxxxxx<mailto:pgsql-performance@xxxxxxxxxxxxxxxxxxxx> Subject: Re: constraint exclusion with ineq condition (Re: server hardware tuning.) On Thu, Feb 14, 2019 at 10:38:36AM +0000, suganthi Sekar wrote: > u mean the below parameter need to set on . its already on only. > alter system set constraint_exclusion to 'on'; No, I said: > You can work around it by specifying the same condition on b.call_created_date: > > AND b.call_created_date >='2017-11-01' AND b.call_created_date<'2017-11-30'
