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First pass at set-returning-functions in FROM, by Joe Conway with

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some kibitzing from Tom Lane.  Not everything works yet, and there's
no documentation or regression test, but let's commit this so Joe
doesn't need to cope with tracking changes in so many files ...
This commit is contained in:
Tom Lane
2002-05-12 20:10:05 +00:00
parent 71009354c8
commit f9e4f611a1
48 changed files with 1813 additions and 329 deletions
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43
src/backend/parser/parse_func.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.127 2002/05/03 20:15:02 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.128 2002/05/12 20:10:04 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -181,27 +181,32 @@ ParseFuncOrColumn(ParseState *pstate, List *funcname, List *fargs,
* sizeof(Pointer) to signal that the runtime representation
* will be a pointer not an Oid.
*/
if (rte->rtekind != RTE_RELATION)
switch (rte->rtekind)
{
/*
* RTE is a join or subselect; must fail for lack of a
* named tuple type
*/
if (is_column)
elog(ERROR, "No such attribute %s.%s",
refname, strVal(lfirst(funcname)));
else
{
elog(ERROR, "Cannot pass result of sub-select or join %s to a function",
refname);
}
case RTE_RELATION:
toid = get_rel_type_id(rte->relid);
if (!OidIsValid(toid))
elog(ERROR, "Cannot find type OID for relation %u",
rte->relid);
break;
case RTE_FUNCTION:
toid = exprType(rte->funcexpr);
break;
default:
/*
* RTE is a join or subselect; must fail for lack of a
* named tuple type
*/
if (is_column)
elog(ERROR, "No such attribute %s.%s",
refname, strVal(lfirst(funcname)));
else
elog(ERROR, "Cannot pass result of sub-select or join %s to a function",
refname);
toid = InvalidOid; /* keep compiler quiet */
break;
}
toid = get_rel_type_id(rte->relid);
if (!OidIsValid(toid))
elog(ERROR, "Cannot find type OID for relation %u",
rte->relid);
/* replace RangeVar in the arg list */
lfirst(i) = makeVar(vnum,
InvalidAttrNumber,