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Change logtape/tuplestore code to use int64 for block numbers

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The code previously relied on "long" as type to track block numbers,
which would be 4 bytes in all Windows builds or any 32-bit builds.  This
limited the code to be able to handle up to 16TB of data with the
default block size of 8kB, like during a CLUSTER.  This code now relies
on a more portable int64, which should be more than enough for at least
the next 20 years to come.

This issue has been reported back in 2017, but nothing was done about it
back then, so here we go now.

Reported-by: Peter Geoghegan
Reviewed-by: Heikki Linnakangas
Discussion: https://postgr.es/m/CAH2-WznCscXnWmnj=STC0aSa7QG+BRedDnZsP=Jo_R9GUZvUrg@mail.gmail.com
This commit is contained in:
Michael Paquier
2023-11-17 11:20:53 +09:00
parent c99c7a4871
commit b1e5c9fa9a
5 changed files with 80 additions and 80 deletions
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4
src/include/storage/buffile.h
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@@ -44,9 +44,9 @@ extern size_t BufFileReadMaybeEOF(BufFile *file, void *ptr, size_t size, bool eo
extern void BufFileWrite(BufFile *file, const void *ptr, size_t size);
extern int BufFileSeek(BufFile *file, int fileno, off_t offset, int whence);
extern void BufFileTell(BufFile *file, int *fileno, off_t *offset);
extern int BufFileSeekBlock(BufFile *file, long blknum);
extern int BufFileSeekBlock(BufFile *file, int64 blknum);
extern int64 BufFileSize(BufFile *file);
extern long BufFileAppend(BufFile *target, BufFile *source);
extern int64 BufFileAppend(BufFile *target, BufFile *source);
extern BufFile *BufFileCreateFileSet(FileSet *fileset, const char *name);
extern void BufFileExportFileSet(BufFile *file);