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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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14
src/backend/executor/execQual.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/execQual.c,v 1.174 2005/03/22 20:13:06 tgl Exp $
* $PostgreSQL: pgsql/src/backend/executor/execQual.c,v 1.175 2005/03/29 00:16:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -724,9 +724,17 @@ init_fcache(Oid foid, FuncExprState *fcache, MemoryContext fcacheCxt)
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, ACL_KIND_PROC, get_func_name(foid));
/* Safety check (should never fail, as parser should check sooner) */
/*
* Safety check on nargs. Under normal circumstances this should never
* fail, as parser should check sooner. But possibly it might fail
* if server has been compiled with FUNC_MAX_ARGS smaller than some
* functions declared in pg_proc?
*/
if (list_length(fcache->args) > FUNC_MAX_ARGS)
elog(ERROR, "too many arguments");
ereport(ERROR,
(errcode(ERRCODE_TOO_MANY_ARGUMENTS),
errmsg("cannot pass more than %d arguments to a function",
FUNC_MAX_ARGS)));
/* Set up the primary fmgr lookup information */
fmgr_info_cxt(foid, &(fcache->func), fcacheCxt);