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base repository: postgresql-cfbot/postgresql
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base: cf/5907~1
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head repository: postgresql-cfbot/postgresql
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compare: cf/5907
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  • 3 commits
  • 6 files changed
  • 2 contributors

Commits on Dec 26, 2025

  1. add function DomainHaveVolatileConstraints 

    the signature is:
extern bool DomainHaveVolatileConstraints(Oid type_id, bool *have_volatile);

Returns true if the Domain has any constraints.  If you want check this domain
have any volatile check constraints, make sure have_volatile is not NULL.

discussion: https://postgr.es/m/CACJufxE_+iZBR1i49k_AHigppPwLTJi6km8NOsC7FWvKdEmmXg@mail.gmail.com
    @jianhe-fun
    jianhe-fun authored and Commitfest Bot committed Dec 26, 2025
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  2. skip table rewrite when set column type to constrained domain 

    If a table rewrite is required, there's nothing we can do about it.  We can add
a new boolean field need_compute to NewColumnValue.

This field is currently set to true only when changing an existing column's type
to a constrained domain.  In such cases, a table scan alone is sufficient.

This only works if the new domain type all constraint are non-volatile.  and new
domain base type is binary coercible with the old column type.

[1]: https://www.postgresql.org/message-id/[email protected]
discussion: https://postgr.es/m/CACJufxFX0DupbF5+DBNF3mXCFNTZ1Y7jpT11+tCD_FcyADHs2A@mail.gmail.com
commitfest: https://commitfest.postgresql.org/patch/5907
    @jianhe-fun
    jianhe-fun authored and Commitfest Bot committed Dec 26, 2025
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  3. [CF 5907] v3 - no table rewrite when set column type to constrained d… 

    …omain

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

https://commitfest.postgresql.org/patch/5907

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/CACJufxFEGpLYVBzt=cTp2xFZpm02CfyGkMz6bj3Xqx9x3=bNxQ@mail.gmail.com
Author(s): Jian He
    Commitfest Bot committed Dec 26, 2025
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