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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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7
src/backend/parser/parse_agg.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/parse_agg.c,v 1.67 2005/03/10 23:21:23 tgl Exp $
* $PostgreSQL: pgsql/src/backend/parser/parse_agg.c,v 1.68 2005/03/29 00:17:04 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -367,14 +367,13 @@ build_aggregate_fnexprs(Oid agg_input_type,
Expr **transfnexpr,
Expr **finalfnexpr)
{
Oid transfn_arg_types[FUNC_MAX_ARGS];
int transfn_nargs;
Param *arg0;
Param *arg1;
List *args;
/* get the transition function signature (only need nargs) */
(void) get_func_signature(transfn_oid, transfn_arg_types, &transfn_nargs);
/* get the transition function arg count */
transfn_nargs = get_func_nargs(transfn_oid);
/*
* Build arg list to use in the transfn FuncExpr node. We really only