subject:"\[HACKERS\] Union All View execution"

Re: [HACKERS] Union All View execution

2015-10-15 Thread Amit Kapila

On Thu, Oct 15, 2015 at 11:33 AM, Ivan Novick wrote: > Hi, > > If we have two queries, Query A and Query B that both return same columns. > > If we do Union All View will postgresql execute Query A and then Query B > sequentially? > > Does the work being discussed around

[HACKERS] Union All View execution

2015-10-15 Thread Ivan Novick

Hi, If we have two queries, Query A and Query B that both return same columns. If we do Union All View will postgresql execute Query A and then Query B sequentially? Does the work being discussed around parallel query have the potential to parallely execute both parts of a Union All View? Also