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base repository: postgresql-cfbot/postgresql
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  • 4 commits
  • 6 files changed
  • 3 contributors

Commits on Mar 18, 2025

  1. vacuumdb: Teach vacuum_one_database() to reuse query results. 

    Presently, each call to vacuum_one_database() performs a catalog
query to retrieve the list of tables to process.  A proposed
follow-up commit would add a "missing only" feature to
--analyze-in-stages, which requires us to save the results of the
catalog query (since tables without statistics would have them
after the first stage).  This commit adds this ability via a new
parameter for vacuum_one_database() that specifies either a
previously-retrieved list to process or a place to return the
results of the catalog query.  Note that this commit does not make
use of this new parameter for anything.  That is left for a
follow-up commit.

Author: Corey Huinker <[email protected]>
Co-authored-by: Nathan Bossart <[email protected]>
Reviewed-by: John Naylor <[email protected]>
Discussion: https://postgr.es/m/Z5O1bpcwDrMgyrYy%40nathan
    @nathan-bossart
    2 people authored and Commitfest Bot committed Mar 18, 2025
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  2. vacuumdb: Add option for analyzing only relations missing stats. 

    This commit adds a new --missing-only option that can be used in
conjunction with --analyze-only or --analyze-in-stages.  When this
option is specified, vacuumdb will generate ANALYZE commands for a
relation if it is missing any statistics it should ordinarily have.
For example, if a table has statistics for one column but not
another, we will analyze the whole table.  A similar principle
applies to extended statistics, expression indexes, and table
inheritance.

Author: Corey Huinker <[email protected]>
Co-authored-by: Nathan Bossart <[email protected]>
Reviewed-by: John Naylor <[email protected]>
Discussion: https://postgr.es/m/Z5O1bpcwDrMgyrYy%40nathan
    @nathan-bossart
    2 people authored and Commitfest Bot committed Mar 18, 2025
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  3. Update guidance for running vacuumdb after pg_upgrade. 

    Now that pg_upgrade can carry over most optimizer statistics, we
should recommend using vacuumdb's new --missing-only option to only
analyze relations that are missing statistics.

Reviewed-by: John Naylor <[email protected]>
Discussion: https://postgr.es/m/Z5O1bpcwDrMgyrYy%40nathan
    @nathan-bossart
    nathan-bossart authored and Commitfest Bot committed Mar 18, 2025
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  4. [CF 5523] v7 - vacuumdb changes for stats import/export 

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

https://commitfest.postgresql.org/patch/5523

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/Z9jXuyymBSVDw9pv@nathan
Author(s): Corey Huinker, Nathan Bossart
    Commitfest Bot committed Mar 18, 2025
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