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b3427dade1
deleteWhatDependsOn() had grown an uncomfortably large number of assumptions about what it's used for. There are actually only two minor differences between what it does and what a regular performDeletion() call can do, so let's invent additional bits in performDeletion's existing flags argument that specify those behaviors, and get rid of deleteWhatDependsOn() as such. (We'd probably have done it this way from the start, except that performDeletion didn't originally have a flags argument, IIRC.) Also, add a SKIP_EXTENSIONS flag bit that prevents ever recursing to an extension, and use that when dropping temporary objects at session end. This provides a more general solution to the problem addressed in a hacky way in commit 08dd23cec: if an extension script creates temp objects and forgets to remove them again, the whole extension went away when its contained temp objects were deleted. The previous solution only covered temp relations, but this solves it for all object types. These changes require minor additions in dependency.c to pass the flags to subroutines that previously didn't get them, but it's still a net savings of code, and it seems cleaner than before. Having done this, revert the special-case code added in 08dd23cec that prevented addition of pg_depend records for temp table extension membership, because that caused its own oddities: dropping an extension that had created such a table didn't automatically remove the table, leading to a failure if the table had another dependency on the extension (such as use of an extension data type), or to a duplicate-name failure if you then tried to recreate the extension. But we keep the part that prevents the pg_temp_nnn schema from becoming an extension member; we never want that to happen. Add a regression test case covering these behaviors. Although this fixes some arguable bugs, we've heard few field complaints, and any such problems are easily worked around by explicitly dropping temp objects at the end of extension scripts (which seems like good practice anyway). So I won't risk a back-patch. Discussion: https://postgr.es/m/e51f4311-f483-4dd0-1ccc-abec3c405110@BlueTreble.com
PostgreSQL tests ================ This directory contains a variety of test infrastructure as well as some of the tests in PostgreSQL. Not all tests are here -- in particular, there are more in individual contrib/ modules and in src/bin. Not all these tests get run by "make check". Check src/test/Makefile to see which tests get run automatically. examples/ Demonstration programs for libpq that double as regression tests via "make check" isolation/ Tests for concurrent behavior at the SQL level locale/ Sanity checks for locale data, encodings, etc mb/ Tests for multibyte encoding (UTF-8) support modules/ Extensions used only or mainly for test purposes, generally not suitable for installing in production databases perl/ Infrastructure for Perl-based TAP tests recovery/ Test suite for recovery and replication regress/ PostgreSQL's main regression test suite, pg_regress ssl/ Tests to exercise and verify SSL certificate handling thread/ A thread-safety-testing utility used by configure