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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2005-03-29 00:17:27 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2005-03-29 00:17:27 +0000 |
| commit | 70c9763d4815ac847f0f7694f43eb6a59a236868 (patch) | |
| tree | 7d8aa05f668f1ef7809ff521b6c1e12d31125fd7 /src/include/utils/array.h | |
| parent | 119191609c507528b20d74c59be69f2129127575 (diff) | |
| download | postgresql-70c9763d4815ac847f0f7694f43eb6a59a236868.tar.gz | |
Convert oidvector and int2vector into variable-length arrays. This
change saves a great deal of space in pg_proc and its primary index,
and it eliminates the former requirement that INDEX_MAX_KEYS and
FUNC_MAX_ARGS have the same value. INDEX_MAX_KEYS is still embedded
in the on-disk representation (because it affects index tuple header
size), but FUNC_MAX_ARGS is not. I believe it would now be possible
to increase FUNC_MAX_ARGS at little cost, but haven't experimented yet.
There are still a lot of vestigial references to FUNC_MAX_ARGS, which
I will clean up in a separate pass. However, getting rid of it
altogether would require changing the FunctionCallInfoData struct,
and I'm not sure I want to buy into that.
Diffstat (limited to 'src/include/utils/array.h')
| -rw-r--r-- | src/include/utils/array.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/include/utils/array.h b/src/include/utils/array.h index df5cd28b7d..92ff21bb64 100644 --- a/src/include/utils/array.h +++ b/src/include/utils/array.h @@ -10,7 +10,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/utils/array.h,v 1.53 2005/03/24 21:50:38 tgl Exp $ + * $PostgreSQL: pgsql/src/include/utils/array.h,v 1.54 2005/03/29 00:17:18 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -22,6 +22,9 @@ /* * Arrays are varlena objects, so must meet the varlena convention that * the first int32 of the object contains the total object size in bytes. + * + * CAUTION: if you change the header for ordinary arrays you will also + * need to change the headers for oidvector and int2vector! */ typedef struct { |