Re: Avoid calling SetMatViewPopulatedState if possible

[Fujii Masao]

On Thu, Jun 18, 2026 at 6:28 PM cca5507 <cca5...@qq.com> wrote:
> > 5. A small suggestion
> > After further consideration, I suggest using the condition:
> >     if (RelationIsPopulated(matviewRel) != !skipData)
> > This is much more readable and intuitive compared to the original:
> >     if (RelationIsPopulated(matviewRel) == skipData)
> > Especially when paired with the original call:
> >     SetMatViewPopulatedState(matviewRel, !skipData);
>
> Both are ok for me.

Thanks for the patch! I went with the following form:

    if (RelationIsPopulated(matviewRel) != !skipData)
            SetMatViewPopulatedState(matviewRel, !skipData);

Attached is an updated patch. I also adjusted the nearby comment and
expanded the commit message to explain the unnecessary pg_class update
and resulting dead tuple generation.

Barring any objections, I'm thinking to commit this.

Regards,

-- 
Fujii Masao

v3-0001-Avoid-unnecessary-matview-populated-state-updates.patch
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