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Remove PlannerInfo's join_search_private method.

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Instead, use the new mechanism that allows planner extensions to store
private state inside a PlannerInfo, treating GEQO as an in-core planner
extension.  This is a useful test of the new facility, and also buys
back a few bytes of storage.

To make this work, we must remove innerrel_is_unique_ext's hack of
testing whether join_search_private is set as a proxy for whether
the join search might be retried. Add a flag that extensions can
use to explicitly signal their intentions instead.

Reviewed-by: Andrei Lepikhov <lepihov@gmail.com>
Reviewed-by: Melanie Plageman <melanieplageman@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
2025-08-20 15:10:52 -04:00
parent 0132dddab3
commit 64095d1574
8 changed files with 32 additions and 17 deletions
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5
src/include/nodes/pathnodes.h
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@@ -536,6 +536,8 @@ struct PlannerInfo
bool placeholdersFrozen;
/* true if planning a recursive WITH item */
bool hasRecursion;
/* true if a planner extension may replan this subquery */
bool assumeReplanning;
/*
* The rangetable index for the RTE_GROUP RTE, or 0 if there is no
@@ -582,9 +584,6 @@ struct PlannerInfo
bool *isAltSubplan pg_node_attr(read_write_ignore);
bool *isUsedSubplan pg_node_attr(read_write_ignore);
/* optional private data for join_search_hook, e.g., GEQO */
void *join_search_private pg_node_attr(read_write_ignore);
/* Does this query modify any partition key columns? */
bool partColsUpdated;