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base repository: postgresql-cfbot/postgresql
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base: cf/5627~1
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head repository: postgresql-cfbot/postgresql
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compare: cf/5627
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  • 3 commits
  • 3 files changed
  • 2 contributors

Commits on Apr 30, 2025

  1. Keep WAL segments by slot's flushed restart LSN 

    The slot data is flushed to the disk at the beginning of checkpoint. If
an existing slot is advanced in the middle of checkpoint execution, its
advanced restart LSN is taken to calculate the oldest LSN for WAL
segments removal at the end of checkpoint. If the node is restarted just
after the checkpoint, the slots data will be read from the disk at
recovery with the oldest restart LSN which can refer to removed WAL
segments.

The patch introduces a new in-memory state for slots -
flushed_restart_lsn which is used to calculate the oldest LSN for WAL
segments removal. This state is updated every time with the current
restart_lsn at the moment, when the slot is saving to disk.
    Vitaly Davydov authored and Commitfest Bot committed Apr 30, 2025
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  2. Fix src/recovery/t/001_stream_rep.pl

    Vitaly Davydov authored and Commitfest Bot committed Apr 30, 2025
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  3. [CF 5627] Fix oldest LSN calculation for WAL segments removal when sl… 

    …ots are advancing during checkpoint

This branch was automatically generated by a robot using patches from an
email thread registered at:

https://commitfest.postgresql.org/patch/5627

The branch will be overwritten each time a new patch version is posted to
the thread, and also periodically to check for bitrot caused by changes
on the master branch.

Patch(es): https://www.postgresql.org/message-id/1538a2-67c5c700-7-77ec5a80@179382871
Author(s): Vitaly Davydov
    Commitfest Bot committed Apr 30, 2025
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