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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2020-12-03 15:57:48 +0200 |
|---|---|---|
| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2020-12-03 15:57:57 +0200 |
| commit | 63e316f0bc1d73276b94283ab482513892c5ee75 (patch) | |
| tree | 84865d272792be71048e62b810ae71e460919223 /src/tutorial/basics.source | |
| parent | 28bb8c496691e0fb60f49eac08b4dc1d8bdd6b4a (diff) | |
Fix pg_rewind bugs when rewinding a standby server.
If the target is a standby server, its WAL doesn't end at the last
checkpoint record, but at minRecoveryPoint. We must scan all the
WAL from the last common checkpoint all the way up to minRecoveryPoint
for modified pages, and also consider that portion when determining
whether the server needs rewinding.
Backpatch to all supported versions.
Author: Ian Barwick and me
Discussion: https://www.postgresql.org/message-id/CABvVfJU-LDWvoz4-Yow3Ay5LZYTuPD7eSjjE4kGyNZpXC6FrVQ%40mail.gmail.com
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