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Provide a build-time option to store large relations as single files, rather

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than dividing them into 1GB segments as has been our longtime practice.  This
requires working support for large files in the operating system; at least for
the time being, it won't be the default.

Zdenek Kotala
This commit is contained in:
Tom Lane
2008-03-10 20:06:27 +00:00
parent b6912af22b
commit f0828b2fc3
12 changed files with 595 additions and 100 deletions
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6
src/include/storage/buffile.h
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@@ -18,7 +18,7 @@
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/storage/buffile.h,v 1.23 2008/01/01 19:45:58 momjian Exp $
* $PostgreSQL: pgsql/src/include/storage/buffile.h,v 1.24 2008/03/10 20:06:27 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -38,8 +38,8 @@ extern BufFile *BufFileCreateTemp(bool interXact);
extern void BufFileClose(BufFile *file);
extern size_t BufFileRead(BufFile *file, void *ptr, size_t size);
extern size_t BufFileWrite(BufFile *file, void *ptr, size_t size);
extern int BufFileSeek(BufFile *file, int fileno, long offset, int whence);
extern void BufFileTell(BufFile *file, int *fileno, long *offset);
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);
#endif /* BUFFILE_H */