Re: Changing types of block and chunk sizes in memory contexts
Melih Mutlu <m.melihmutlu@gmail.com>
From: Melih Mutlu <m.melihmutlu@gmail.com>
To: David Rowley <dgrowleyml@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Peter Eisentraut <peter@eisentraut.org>, pgsql-hackers <pgsql-hackers@postgresql.org>,
Andres Freund <andres@anarazel.de>
Date: 2023-07-14T06:53:24Z
Lists: pgsql-hackers
Hi David, David Rowley <dgrowleyml@gmail.com>, 13 Tem 2023 Per, 08:04 tarihinde şunu yazdı: > I looked at your v2 patch. The only thing that really looked wrong > were the (Size) casts in the context creation functions. These should > have been casts to uint32 rather than Size. Basically, all the casts > do is say to the compiler "Yes, I know this could cause truncation due > to assigning to a size smaller than the source type's size". Some > compilers will likely warn without that and the cast will stop them. > We know there can't be any truncation due to the Asserts. There's also > the fundamental limitation that MemoryChunk can't store block offsets > larger than 1GBs anyway, so things will go bad if we tried to have > blocks bigger than 1GB. > Right! I don't know why I cast them to Size. Thanks for the fix. Best, -- Melih Mutlu Microsoft
Commits
-
Shrink memory contexts struct sizes
- 2c2eb0d6b27f 17.0 landed