Fix unstable tests in partition_merge.sql and partition_split.sql.

Fujii Masao <fujii@postgresql.org>

Commit: 6a700da46e6279a0df6a996fd19c5aabdf7a4b56
Author: Fujii Masao <fujii@postgresql.org>
Date: 2024-07-15T05:11:49Z
Releases: 17.0
Fix unstable tests in partition_merge.sql and partition_split.sql.

The tests added by commit c086896625 were unstable due to
missing schema names when checking pg_tables and pg_indexes.

Backpatch to v17.

Reported by buildfarm.

Files