Re: generic plans and "initial" pruning

From: Daniel Gustafsson <daniel(at)yesql(dot)se>
To: Amit Langote <amitlangote09(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Andres Freund <andres(at)anarazel(dot)de>, David Rowley <dgrowleyml(at)gmail(dot)com>, Jacob Champion <jchampion(at)timescale(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com>
Subject: Re: generic plans and "initial" pruning
Date: 2023-07-03 13:27:22
Message-ID: 9D23D8BB-83EE-451E-95C1-CF42ADB76869@yesql.se
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> On 8 Jun 2023, at 16:23, Amit Langote <amitlangote09(at)gmail(dot)com> wrote:
>
> Here is a new version.

The local planstate variable in the hunk below is shadowing the function
parameter planstate which cause a compiler warning:

@@ -1495,18 +1556,15 @@ ExecEndPlan(PlanState *planstate, EState *estate)
ListCell *l;

/*
- * shut down the node-type-specific query processing
- */
- ExecEndNode(planstate);
-
- /*
- * for subplans too
+ * Shut down the node-type-specific query processing for all nodes that
+ * were initialized during InitPlan(), both in the main plan tree and those
+ * in subplans (es_subplanstates), if any.
*/
- foreach(l, estate->es_subplanstates)
+ foreach(l, estate->es_inited_plannodes)
{
- PlanState *subplanstate = (PlanState *) lfirst(l);
+ PlanState *planstate = (PlanState *) lfirst(l);

--
Daniel Gustafsson

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