Re: Remove unused fields in ReorderBufferTupleBuf

Aleksander Alekseev <aleksander@timescale.com>

From: Aleksander Alekseev <aleksander@timescale.com>
To: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Cc: Amit Kapila <amit.kapila16@gmail.com>, Masahiko Sawada <sawada.mshk@gmail.com>
Date: 2024-01-22T14:18:50Z
Lists: pgsql-hackers

Attachments

Hi,

> > 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.

I did a mistake in v4:

```
-    alloc_len = tuple_len + SizeofHeapTupleHeader;
+    alloc_len = tuple_len + HEAPTUPLESIZE;
```

Here is the corrected patch.

-- 
Best regards,
Aleksander Alekseev

Commits

  1. Remove ReorderBufferTupleBuf structure.

  2. Generational memory allocator