| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Qingqing Zhou <zhouqq(dot)postgres(at)gmail(dot)com> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Use outerPlanState() consistently in executor code |
| Date: | 2015-04-30 12:46:55 |
| Message-ID: | CA+TgmoY5zMeVx3WsvbvxXFUte5iURwA1RjtuT=+uYuSFJ=FpNg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Apr 15, 2015 at 3:38 PM, Qingqing Zhou
<zhouqq(dot)postgres(at)gmail(dot)com> wrote:
> In executor context, outerPlanState(node) is the same as
> node->ss.ps.lefttree. We follow this in most places except a few. This
> patch clean up the outliers and might save us a few instructions by
> removing indirection.
>
> Most of changes are trivial. Except I take out an outerPlan nullable
> check in grouping iterator - as a it surely has a left child.
I don't see any particular reason not to do this.
The patch is weird, though. If I open it with "less", I get binary
garbage. My Mac's TextEdit app opens it OK though.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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