Re: Changing types of block and chunk sizes in memory contexts
От | David Rowley |
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Тема | Re: Changing types of block and chunk sizes in memory contexts |
Дата | |
Msg-id | CAApHDvokXXRmRjSwT59+c1nNntkmQPvDwLkk+phTCNdRDi_vBg@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Changing types of block and chunk sizes in memory contexts (Melih Mutlu <m.melihmutlu@gmail.com>) |
Список | pgsql-hackers |
On Fri, 14 Jul 2023 at 18:53, Melih Mutlu <m.melihmutlu@gmail.com> wrote: > 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. Pushed. David
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