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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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18
src/backend/nodes/equalfuncs.c
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@@ -20,7 +20,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.130 2002/04/28 19:54:28 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.131 2002/05/12 20:10:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1573,6 +1573,17 @@ _equalRangeSubselect(RangeSubselect *a, RangeSubselect *b)
return true;
}
static bool
_equalRangeFunction(RangeFunction *a, RangeFunction *b)
{
if (!equal(a->funccallnode, b->funccallnode))
return false;
if (!equal(a->alias, b->alias))
return false;
return true;
}
static bool
_equalTypeName(TypeName *a, TypeName *b)
{
@@ -1678,6 +1689,8 @@ _equalRangeTblEntry(RangeTblEntry *a, RangeTblEntry *b)
return false;
if (!equal(a->subquery, b->subquery))
return false;
if (!equal(a->funcexpr, b->funcexpr))
return false;
if (a->jointype != b->jointype)
return false;
if (!equal(a->joinaliasvars, b->joinaliasvars))
@@ -2166,6 +2179,9 @@ equal(void *a, void *b)
case T_RangeSubselect:
retval = _equalRangeSubselect(a, b);
break;
case T_RangeFunction:
retval = _equalRangeFunction(a, b);
break;
case T_TypeName:
retval = _equalTypeName(a, b);
break;