Re: UNION ALL on partitioned tables won't use indices.

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>
Cc: noah(at)leadboat(dot)com, peter_e(at)gmx(dot)net, robertmhaas(at)gmail(dot)com, pgsql-hackers(at)postgresql(dot)org
Subject: Re: UNION ALL on partitioned tables won't use indices.
Date: 2014-03-05 18:59:45
Message-ID: 17224.1394045985@sss.pgh.pa.us
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Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp> writes:
>> ec_relids has never included child relids.

> relation.h says that,

> | Relids ec_relids; /* all relids appearing in ec_members */
> ...
> | Relids em_relids; /* all relids appearing in em_expr */

Ah. Those comments could use improvement, I guess.

regards, tom lane

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