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Convert oidvector and int2vector into variable-length arrays. This

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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.
This commit is contained in:
Tom Lane
2005-03-29 00:17:27 +00:00
parent 119191609c
commit 70c9763d48
61 changed files with 819 additions and 581 deletions
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10
src/backend/access/hash/hashfunc.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/hash/hashfunc.c,v 1.42 2004/12/31 21:59:13 pgsql Exp $
* $PostgreSQL: pgsql/src/backend/access/hash/hashfunc.c,v 1.43 2005/03/29 00:16:50 tgl Exp $
*
* NOTES
* These functions are stored in pg_amproc. For each operator class
@@ -107,17 +107,17 @@ hashfloat8(PG_FUNCTION_ARGS)
Datum
hashoidvector(PG_FUNCTION_ARGS)
{
Oid *key = (Oid *) PG_GETARG_POINTER(0);
oidvector *key = (oidvector *) PG_GETARG_POINTER(0);
return hash_any((unsigned char *) key, INDEX_MAX_KEYS * sizeof(Oid));
return hash_any((unsigned char *) key->values, key->dim1 * sizeof(Oid));
}
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hashint2vector(PG_FUNCTION_ARGS)
{
int16 *key = (int16 *) PG_GETARG_POINTER(0);
int2vector *key = (int2vector *) PG_GETARG_POINTER(0);
return hash_any((unsigned char *) key, INDEX_MAX_KEYS * sizeof(int16));
return hash_any((unsigned char *) key->values, key->dim1 * sizeof(int2));
}
Datum