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| author | Peter Geoghegan <pg@bowt.ie> | 2022-02-15 15:16:19 -0800 |
|---|---|---|
| committer | Peter Geoghegan <pg@bowt.ie> | 2022-02-15 15:16:19 -0800 |
| commit | 988ffc30637ce2b7c4ff984513f4695372602ce2 (patch) | |
| tree | fcf88f578b64ae176521e746162d79aec5b99386 /src/backend/access/transam/xlogutils.c | |
| parent | 3b0ee7f583dc347c4aecb57d35830d2f99956e5c (diff) | |
| download | postgresql-988ffc30637ce2b7c4ff984513f4695372602ce2.tar.gz postgresql-988ffc30637ce2b7c4ff984513f4695372602ce2.zip | |
Update "don't truncate with failsafe" rationale.
There is a very good (though non-obvious) reason to avoid relation
truncation during a VACUUM that has triggered the failsafe mechanism,
which was missed before now. Update related comments, so this isn't
forgotten.
Reported-By: John Naylor <john.naylor@enterprisedb.com>
Discussion: https://postgr.es/m/CAFBsxsFiMPxQ-dHZ8tOgktn=+ffeJT3+GinZ4zdOGbmAnCYadA@mail.gmail.com
Diffstat (limited to 'src/backend/access/transam/xlogutils.c')
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