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Add ExplainState argument to pg_plan_query() and planner().

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This allows extensions to have access to any data they've stored
in the ExplainState during planning. Unfortunately, it won't help
with EXPLAIN EXECUTE is used, but since that case is less common,
this still seems like an improvement.

Since planner() has quite a few arguments now, also add some
documentation of those arguments and the return value.

Author: Robert Haas <rhaas@postgresql.org>
Co-authored-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Andrei Lepikhov <lepihov@gmail.com>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: http://postgr.es/m/CA+TgmoYWKHU2hKr62Toyzh-kTDEnMDeLw7gkOOnjL-TnOUq0kQ@mail.gmail.com
This commit is contained in:
Robert Haas
2025-10-08 08:33:29 -04:00
parent 8e11859102
commit c83ac02ec7
12 changed files with 58 additions and 25 deletions
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7
src/test/modules/delay_execution/delay_execution.c
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@@ -40,17 +40,18 @@ static planner_hook_type prev_planner_hook = NULL;
/* planner_hook function to provide the desired delay */
static PlannedStmt *
delay_execution_planner(Query *parse, const char *query_string,
int cursorOptions, ParamListInfo boundParams)
int cursorOptions, ParamListInfo boundParams,
ExplainState *es)
{
PlannedStmt *result;
/* Invoke the planner, possibly via a previous hook user */
if (prev_planner_hook)
result = prev_planner_hook(parse, query_string, cursorOptions,
boundParams);
boundParams, es);
else
result = standard_planner(parse, query_string, cursorOptions,
boundParams);
boundParams, es);
/* If enabled, delay by taking and releasing the specified lock */
if (post_planning_lock_id != 0)