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Robert Haas 585e31fcb6 Don't generate fake "*SELECT*" or "*SELECT* %d" subquery aliases. ... rte->alias should point only to a user-written alias, but in these cases that principle was violated. Fixing this causes some regression test output changes: wherever rte->alias previously had a value and is now NULL, rte->eref is now set to a generated name rather than to rte->alias; and the scheme used to generate eref names differs from what we were doing for aliases. The upshot is that instead of "*SELECT*" or "*SELECT* %d", EXPLAIN will now emit "unnamed_subquery" or "unnamed_subquery_%d". But that's a reasonable descriptor, and we were already producing that in yet other cases, so this seems not too objectionable. Author: Tom Lane <tgl@sss.pgh.pa.us> Co-authored-by: Robert Haas <rhaas@postgresql.org> Discussion: https://postgr.es/m/CA+TgmoYSYmDA2GvanzPMci084n+mVucv0bJ0HPbs6uhmMN6HMg@mail.gmail.com		3 days ago
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postgres_fdw.out	Don't generate fake "*SELECT*" or "*SELECT* %d" subquery aliases.	3 days ago
query_cancel.out	postgres_fdw: re-issue cancel requests a few times if necessary.	9 months ago
query_cancel_1.out	postgres_fdw: Split out the query_cancel test to its own file	1 year ago