Re: RFC: extensible planner state

Robert Haas <robertmhaas@gmail.com>

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From: Robert Haas <robertmhaas@gmail.com>

To: Tom Lane <tgl@sss.pgh.pa.us>

Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>

Date: 2025-09-25T16:03:50Z

Lists: pgsql-hackers

Attachments

v7-0004-Add-planner_setup_hook-and-planner_shutdown_hook.patch (application/octet-stream) patch v7-0004
v7-0001-Allow-private-state-in-certain-planner-data-struc.patch (application/octet-stream) patch v7-0001
v7-0002-Remove-PlannerInfo-s-join_search_private-method.patch (application/octet-stream) patch v7-0002
v7-0003-Add-ExplainState-argument-to-pg_plan_query-and-pl.patch (application/octet-stream) patch v7-0003
v7-0005-Add-extension_state-member-to-PlannedStmt.patch (application/octet-stream) patch v7-0005
v7-0006-not-for-commit-count-distinct-joinrels-and-joinre.patch (application/octet-stream) patch v7-0006

On Wed, Sep 24, 2025 at 12:18 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> I'm good with 0001, and the release freeze is over, so push that
> whenever you like.  I'll try to look at the rest soon.

Done now. Here's a rebase of the rest, plus I tweaked the GEQO patch
to try to avoid a compiler warning that cfbot was complaining about.

-- 
Robert Haas
EDB: http://www.enterprisedb.com

Commits

Add extension_state member to PlannedStmt.
- 4685977cc51c 19 (unreleased) landed
Add planner_setup_hook and planner_shutdown_hook.
- 94f3ad3961a2 19 (unreleased) landed
Add ExplainState argument to pg_plan_query() and planner().
- c83ac02ec730 19 (unreleased) landed
Remove PlannerInfo's join_search_private method.
- 64095d157482 19 (unreleased) landed
Allow private state in certain planner data structures.
- 0132dddab33a 19 (unreleased) landed
Fix array allocation bugs in SetExplainExtensionState.
- 694057d236b1 18.1 landed
- 803ef0ed49ee 19 (unreleased) landed
Make it possible for loadable modules to add EXPLAIN options.
- c65bc2e1d14a 18.0 cited