Re: BUG #18468: CREATE TABLE ... LIKE leaves orphaned column reference in extended statistics

Tender Wang <tndrwang@gmail.com>

From: Tender Wang <tndrwang@gmail.com>

To: exclusion@gmail.com, pgsql-bugs@lists.postgresql.org

Date: 2024-05-16T08:38:19Z

Lists: pgsql-bugs

generateClonedExtStatsStmt just copy t0's ext_stat info to t1.
I think we could do something in transformExtendedStatistics() as the
comments said.
in transformCreateStmt， has below code:
/*
* Postprocess extended statistics.
*/
transformExtendedStatistics(&cxt);

Right now, there is nothing to do in transformExtendedStatistics.
Can we update the varattno to the right value here?
-- 
Tender Wang
OpenPie:  https://en.openpie.com/

Commits

Fix handling of extended expression statistics in CREATE TABLE LIKE.
- 5278668d7a46 17.0 landed
- 2f3cfcf7677f 15.8 landed
- 2aa90c02dc69 16.4 landed
- 1015162c3535 14.13 landed
Extended statistics on expressions
- a4d75c86bf15 14.0 cited