Re: query against single partition uses index, against master table does seq scan

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This is 9.5, sorry I didnt mention that in the initial post. I am guessing the issue is that the secondary non-indexed criteria is a search through a jsonb column?

Let me know if I can provide any additional info, as I stated I am working around it with a subquery at the moment.  This seems like it may become a more frequent ad-hoc need so if there is something else I can do it would be appreciated.

On Wed, Sep 21, 2016 at 9:11 PM, Tom Lane <tgl@xxxxxxxxxxxxx> wrote:
Mike Broers <mbroers@xxxxxxxxx> writes:
> Hello, I am curious about the performance of queries against a master table
> that seem to do seq scans on each child table.  When the same query is
> issued at a partition directly it uses the partition index and is very
> fast.

What PG version is that?  For me, everything since 9.0 seems to be willing
to consider the type of plan you're expecting.

                        regards, tom lane


[Postgresql General]     [Postgresql PHP]     [PHP Users]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Yosemite]

  Powered by Linux