diff options
| author | Noah Misch <noah@leadboat.com> | 2025-01-25 11:28:14 -0800 |
|---|---|---|
| committer | Noah Misch <noah@leadboat.com> | 2025-01-25 11:28:19 -0800 |
| commit | 8bfd2cebab0adc6e8dd86c5d34462eea247f0bb6 (patch) | |
| tree | 53e2fb76bba71d0e6f5bb296af3552bd8f2c6a06 /src/port/path.c | |
| parent | 6c1cc35d90c74f45e4ca493cddf418629ceb77dc (diff) | |
At update of non-LP_NORMAL TID, fail instead of corrupting page header.
The right mix of DDL and VACUUM could corrupt a catalog page header such
that PageIsVerified() durably fails, requiring a restore from backup.
This affects only catalogs that both have a syscache and have DDL code
that uses syscache tuples to construct updates. One of the test
permutations shows a variant not yet fixed.
This makes !TransactionIdIsValid(TM_FailureData.xmax) possible with
TM_Deleted. I think core and PGXN are indifferent to that.
Per bug #17821 from Alexander Lakhin. Back-patch to v13 (all supported
versions). The test case is v17+, since it uses INJECTION_POINT.
Discussion: https://postgr.es/m/17821-dd8c334263399284@postgresql.org
Diffstat (limited to 'src/port/path.c')
0 files changed, 0 insertions, 0 deletions