Re: BUG #15608: Index is used for an inherit table but not for the table with the index

Hi,

On 2019-01-28 10:00:39 +0000, PG Bug reporting form wrote:
> The following bug has been logged on the website:
>
> Bug reference: 15608
> Logged by: Axel Hörteborn
> Email address: axel(dot)n(dot)c(dot)andersson(at)gmail(dot)com
> PostgreSQL version: 11.1
> Operating system: Windows 10 x64
> Description:
>
> I tried to ask a question on Stackoverflow but it seems to be a bug:
> Hopefully is all the details required in the Stackoverflow question, in
> short I have a "table_2017_1" which Inherits "table_2017", so no data or
> index are stored directly in "table_2017". When I run a question on
> table_2017 it uses the index on table_2017_1 but when I run the exact same
> question on "table_2017_1" it doesn't evaluate the index and perform a
> sequence scan instead.
>
> https://stackoverflow.com/questions/54362324/postgresql-index-is-used-for-an-inherit-table-but-not-for-the-table-with-the-i

As discussed on IRC, it'd be helpful to include all details via email,
without referencing stackoverflow etc.

Greetings,

Andres Freund