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Clean up plantree representation of SubPlan-s --- SubLink does not appear

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in the planned representation of a subplan at all any more, only SubPlan.
This means subselect.c doesn't scribble on its input anymore, which seems
like a good thing; and there are no longer three different possible
interpretations of a SubLink.  Simplify node naming and improve comments
in primnodes.h.  No change to stored rules, though.
This commit is contained in:
Tom Lane
2002-12-14 00:17:59 +00:00
parent 29cdab3d53
commit 2d8d66628a
24 changed files with 355 additions and 356 deletions
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15
src/backend/nodes/outfuncs.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.189 2002/12/13 19:45:56 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.190 2002/12/14 00:17:52 tgl Exp $
*
* NOTES
* Every node type that can appear in stored rules' parsetrees *must*
@ -665,18 +665,19 @@ _outSubLink(StringInfo str, SubLink *node)
}
static void
_outSubPlanExpr(StringInfo str, SubPlanExpr *node)
_outSubPlan(StringInfo str, SubPlan *node)
{
WRITE_NODE_TYPE("SUBPLANEXPR");
WRITE_NODE_TYPE("SUBPLAN");
WRITE_OID_FIELD(typeOid);
WRITE_ENUM_FIELD(subLinkType, SubLinkType);
WRITE_BOOL_FIELD(useor);
WRITE_NODE_FIELD(oper);
WRITE_NODE_FIELD(plan);
WRITE_INT_FIELD(plan_id);
WRITE_NODE_FIELD(rtable);
WRITE_INTLIST_FIELD(setParam);
WRITE_INTLIST_FIELD(parParam);
WRITE_NODE_FIELD(args);
WRITE_NODE_FIELD(sublink);
}
static void
@ -1498,8 +1499,8 @@ _outNode(StringInfo str, void *obj)
case T_SubLink:
_outSubLink(str, obj);
break;
case T_SubPlanExpr:
_outSubPlanExpr(str, obj);
case T_SubPlan:
_outSubPlan(str, obj);
break;
case T_FieldSelect:
_outFieldSelect(str, obj);