Re: Remove unused fields in ReorderBufferTupleBuf

From: Aleksander Alekseev <aleksander(at)timescale(dot)com>
To: PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Cc: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>
Subject: Re: Remove unused fields in ReorderBufferTupleBuf
Date: 2024-01-22 14:02:03
Message-ID: CAJ7c6TOkOqmQZb2sHMK2iLjR6xHYq7wPWTd8tOKAMR1E5ZuBOg@mail.gmail.com
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Hi,

> > I played a bit more with the patch. There was an idea to make
> > ReorderBufferTupleBufData an opaque structure known only within
> > reorderbyffer.c but it turned out that replication/logical/decode.c
> > accesses it directly so I abandoned that idea for now.
> >
> > > Alternatively we could convert ReorderBufferTupleBufData macro to an
> > > inlined function. At least it will add some type safety.
> >
> > Here is v3 that implements it too as a separate patch.
> >
>
> But why didn't you pursue your idea of getting rid of the wrapper
> structure ReorderBufferTupleBuf which after this patch will have just
> one member? I think there could be hassles in backpatching bug-fixes
> in some cases but in the longer run it would make the code look clean.

Indeed. In fact turned out that I suggested the same above but
apparently forgot:

> On top of that IMO it doesn't make much sense to keep a one-field
> wrapper structure. Perhaps we should get rid of it entirely and just
> use HeapTupleData instead.

After actually trying the refactoring I agree that the code becomes
cleaner and it's going to be beneficial in the long run. Here is the
patch.

--
Best regards,
Aleksander Alekseev

Attachment Content-Type Size
v4-0001-Remove-ReorderBufferTupleBuf-structure.patch application/octet-stream 18.2 KB

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