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base repository: postgresql-cfbot/postgresql
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head repository: postgresql-cfbot/postgresql
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compare: cf/5714
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  • 2 commits
  • 9 files changed
  • 2 contributors

Commits on Aug 9, 2025

  1. Allow to collect statistics on virtual generated columns 

    During ANALYZE, generation expressions are expanded, and statistics are
computed using compute_expr_stats(). To support this, both compute_expr_stats()
and AnlExprData are now exported from extended_stats.c.

To enable the optimizer to make use of these statistics, a new field named
virtual_gencols is added to RelOptInfo. This field holds the expressions of
virtual generated columns in the table. In examine_variable(), if an
expression in a WHERE clause matches a virtual generated column, the
corresponding statistics are used for that expression.
    @yugo-n
    yugo-n authored and Commitfest Bot committed Aug 9, 2025
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  2. [CF 5714] v2 - Allow to collect statistics on virtual generated columns 

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

https://commitfest.postgresql.org/patch/5714

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/[email protected]
Author(s): Yugo Nagata
    Commitfest Bot committed Aug 9, 2025
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