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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2021-04-22 17:30:42 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2021-04-22 17:30:42 -0400 |
| commit | 2602ee4689c7691196568c59656662acf3be4e87 (patch) | |
| tree | ca85e21f49df27b3654823c9e3807023a4f1dc82 /src/tutorial/funcs.c | |
| parent | 00037d8d004031d80d276da543262004ed6bff48 (diff) | |
| download | postgresql-2602ee4689c7691196568c59656662acf3be4e87.tar.gz postgresql-2602ee4689c7691196568c59656662acf3be4e87.zip | |
Don't crash on reference to an un-available system column.
Adopt a more consistent policy about what slot-type-specific
getsysattr functions should do when system attributes are not
available. To wit, they should all throw the same user-oriented
error, rather than variously crashing or emitting developer-oriented
messages.
This closes a identifiable problem in commits a71cfc56b and
3fb93103a (in v13 and v12), so back-patch into those branches,
along with a test case to try to ensure we don't break it again.
It is not known that any of the former crash cases are reachable
in HEAD, but this seems like a good safety improvement in any case.
Discussion: https://postgr.es/m/141051591267657@mail.yandex.ru
Diffstat (limited to 'src/tutorial/funcs.c')
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