Put function expressions and values lists into FunctionScan and ValuesScan

plan nodes, so that the executor does not need to get these items from
the range table at runtime.  This will avoid needing to include these
fields in the compact range table I'm expecting to make the executor use.

1 files changed, 7 insertions, 14 deletions

diff --git a/src/backend/executor/nodeFunctionscan.c b/src/backend/executor/nodeFunctionscan.c
index f7ca022f1c7..d3d9886e3c3 100644
--- a/src/backend/executor/nodeFunctionscan.c
+++ b/src/backend/executor/nodeFunctionscan.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/executor/nodeFunctionscan.c,v 1.42 2007/01/05 22:19:28 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/executor/nodeFunctionscan.c,v 1.43 2007/02/19 02:23:11 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -118,7 +118,6 @@ FunctionScanState *
 ExecInitFunctionScan(FunctionScan *node, EState *estate, int eflags)
 {
 	FunctionScanState *scanstate;
-	RangeTblEntry *rte;
 	Oid			funcrettype;
 	TypeFuncClass functypclass;
 	TupleDesc	tupdesc = NULL;
@@ -162,16 +161,10 @@ ExecInitFunctionScan(FunctionScan *node, EState *estate, int eflags)
 					 (PlanState *) scanstate);
 
 	/*
-	 * get info about function
-	 */
-	rte = rt_fetch(node->scan.scanrelid, estate->es_range_table);
-	Assert(rte->rtekind == RTE_FUNCTION);
-
-	/*
 	 * Now determine if the function returns a simple or composite type, and
 	 * build an appropriate tupdesc.
 	 */
-	functypclass = get_expr_result_type(rte->funcexpr,
+	functypclass = get_expr_result_type(node->funcexpr,
 										&funcrettype,
 										&tupdesc);
 
@@ -185,7 +178,7 @@ ExecInitFunctionScan(FunctionScan *node, EState *estate, int eflags)
 	else if (functypclass == TYPEFUNC_SCALAR)
 	{
 		/* Base data type, i.e. scalar */
-		char	   *attname = strVal(linitial(rte->eref->colnames));
+		char	   *attname = strVal(linitial(node->funccolnames));
 
 		tupdesc = CreateTemplateTupleDesc(1, false);
 		TupleDescInitEntry(tupdesc,
@@ -197,9 +190,9 @@ ExecInitFunctionScan(FunctionScan *node, EState *estate, int eflags)
 	}
 	else if (functypclass == TYPEFUNC_RECORD)
 	{
-		tupdesc = BuildDescFromLists(rte->eref->colnames,
-									 rte->funccoltypes,
-									 rte->funccoltypmods);
+		tupdesc = BuildDescFromLists(node->funccolnames,
+									 node->funccoltypes,
+									 node->funccoltypmods);
 	}
 	else
 	{
@@ -221,7 +214,7 @@ ExecInitFunctionScan(FunctionScan *node, EState *estate, int eflags)
 	 * Other node-specific setup
 	 */
 	scanstate->tuplestorestate = NULL;
-	scanstate->funcexpr = ExecInitExpr((Expr *) rte->funcexpr,
+	scanstate->funcexpr = ExecInitExpr((Expr *) node->funcexpr,
 									   (PlanState *) scanstate);
 
 	scanstate->ss.ps.ps_TupFromTlist = false;