*** ./src/backend/executor/execQual.c.orig	Tue Mar 22 11:23:29 2005
--- ./src/backend/executor/execQual.c	Tue Mar 22 14:16:54 2005
***************
*** 773,778 ****
--- 773,784 ----
  		ExprState  *argstate = (ExprState *) lfirst(arg);
  		ExprDoneCond thisArgIsDone;
  
+ 		/*
+ 		 * argnull is initialized here for safety. Because it might not be
+ 		 * set by ExecEvalExpr. 
+ 		 */
+ 		fcinfo->argnull[i] = false;
+ 
  		fcinfo->arg[i] = ExecEvalExpr(argstate,
  									  econtext,
  									  &fcinfo->argnull[i],
***************
*** 832,839 ****
  	if (!fcache->setArgsValid)
  	{
  		/* Need to prep callinfo structure */
! 		MemSet(&fcinfo, 0, sizeof(fcinfo));
! 		fcinfo.flinfo = &(fcache->func);
  		argDone = ExecEvalFuncArgs(&fcinfo, arguments, econtext);
  		if (argDone == ExprEndResult)
  		{
--- 838,844 ----
  	if (!fcache->setArgsValid)
  	{
  		/* Need to prep callinfo structure */
! 		InitFunctionCallInfoData(fcinfo, &(fcache->func), 0);
  		argDone = ExecEvalFuncArgs(&fcinfo, arguments, econtext);
  		if (argDone == ExprEndResult)
  		{
***************
*** 1046,1053 ****
  	if (isDone)
  		*isDone = ExprSingleResult;
  
! 	MemSet(&fcinfo, 0, sizeof(fcinfo));
! 	fcinfo.flinfo = &(fcache->func);
  
  	/* inlined, simplified version of ExecEvalFuncArgs */
  	i = 0;
--- 1051,1057 ----
  	if (isDone)
  		*isDone = ExprSingleResult;
  
! 	InitFunctionCallInfoData(fcinfo, &(fcache->func), 0);
  
  	/* inlined, simplified version of ExecEvalFuncArgs */
  	i = 0;
***************
*** 1056,1061 ****
--- 1060,1071 ----
  		ExprState  *argstate = (ExprState *) lfirst(arg);
  		ExprDoneCond thisArgIsDone;
  
+ 		/*
+ 		 * argnull is initialized here for safety. Because it might not be
+ 		 * set by ExecEvalExpr. 
+ 		 */
+ 		fcinfo.argnull[i] = false;
+ 
  		fcinfo.arg[i] = ExecEvalExpr(argstate,
  									 econtext,
  									 &fcinfo.argnull[i],
***************
*** 1084,1090 ****
  			}
  		}
  	}
! 	/* fcinfo.isnull = false; */	/* handled by MemSet */
  	result = FunctionCallInvoke(&fcinfo);
  	*isNull = fcinfo.isnull;
  
--- 1094,1100 ----
  			}
  		}
  	}
! 	/* fcinfo.isnull = false; */	/* handled by InitFunctionCallInfoData */
  	result = FunctionCallInvoke(&fcinfo);
  	*isNull = fcinfo.isnull;
  
***************
*** 1132,1138 ****
  	 * doesn't actually get to see the resultinfo, but set it up anyway
  	 * because we use some of the fields as our own state variables.
  	 */
! 	MemSet(&fcinfo, 0, sizeof(fcinfo));
  	fcinfo.resultinfo = (Node *) &rsinfo;
  	rsinfo.type = T_ReturnSetInfo;
  	rsinfo.econtext = econtext;
--- 1142,1148 ----
  	 * doesn't actually get to see the resultinfo, but set it up anyway
  	 * because we use some of the fields as our own state variables.
  	 */
! 	InitFunctionCallInfoData(fcinfo, NULL, 0);
  	fcinfo.resultinfo = (Node *) &rsinfo;
  	rsinfo.type = T_ReturnSetInfo;
  	rsinfo.econtext = econtext;
***************
*** 1499,1506 ****
  	argList = fcache->args;
  
  	/* Need to prep callinfo structure */
! 	MemSet(&fcinfo, 0, sizeof(fcinfo));
! 	fcinfo.flinfo = &(fcache->func);
  	argDone = ExecEvalFuncArgs(&fcinfo, argList, econtext);
  	if (argDone != ExprSingleResult)
  		ereport(ERROR,
--- 1509,1515 ----
  	argList = fcache->args;
  
  	/* Need to prep callinfo structure */
! 	InitFunctionCallInfoData(fcinfo, &(fcache->func), 0);
  	argDone = ExecEvalFuncArgs(&fcinfo, argList, econtext);
  	if (argDone != ExprSingleResult)
  		ereport(ERROR,
***************
*** 1573,1580 ****
  	}
  
  	/* Need to prep callinfo structure */
! 	MemSet(&fcinfo, 0, sizeof(fcinfo));
! 	fcinfo.flinfo = &(sstate->fxprstate.func);
  	argDone = ExecEvalFuncArgs(&fcinfo, sstate->fxprstate.args, econtext);
  	if (argDone != ExprSingleResult)
  		ereport(ERROR,
--- 1582,1588 ----
  	}
  
  	/* Need to prep callinfo structure */
! 	InitFunctionCallInfoData(fcinfo, &(sstate->fxprstate.func), 0);
  	argDone = ExecEvalFuncArgs(&fcinfo, sstate->fxprstate.args, econtext);
  	if (argDone != ExprSingleResult)
  		ereport(ERROR,
***************
*** 2287,2294 ****
  	argList = nullIfExpr->args;
  
  	/* Need to prep callinfo structure */
! 	MemSet(&fcinfo, 0, sizeof(fcinfo));
! 	fcinfo.flinfo = &(nullIfExpr->func);
  	argDone = ExecEvalFuncArgs(&fcinfo, argList, econtext);
  	if (argDone != ExprSingleResult)
  		ereport(ERROR,
--- 2295,2301 ----
  	argList = nullIfExpr->args;
  
  	/* Need to prep callinfo structure */
! 	InitFunctionCallInfoData(fcinfo, &(nullIfExpr->func), 0);
  	argDone = ExecEvalFuncArgs(&fcinfo, argList, econtext);
  	if (argDone != ExprSingleResult)
  		ereport(ERROR,
*** ./src/backend/utils/fmgr/fmgr.c.orig	Tue Mar 22 11:23:11 2005
--- ./src/backend/utils/fmgr/fmgr.c	Tue Mar 22 11:23:19 2005
***************
*** 846,868 ****
   */
  
  /*
-  * This macro initializes all the fields of a FunctionCallInfoData except
-  * for the arg[] and argnull[] arrays.  Performance testing has shown that
-  * the fastest way to set up argnull[] for small numbers of arguments is to
-  * explicitly set each required element to false, so we don't try to zero
-  * out the argnull[] array in the macro.
-  */
- #define InitFunctionCallInfoData(Fcinfo, Flinfo, Nargs) \
- 	do { \
- 		(Fcinfo).flinfo = (Flinfo); \
- 		(Fcinfo).context = NULL; \
- 		(Fcinfo).resultinfo = NULL; \
- 		(Fcinfo).isnull = false; \
- 		(Fcinfo).nargs = (Nargs); \
- 	} while (0)
- 
- 
- /*
   * These are for invocation of a specifically named function with a
   * directly-computed parameter list.  Note that neither arguments nor result
   * are allowed to be NULL.	Also, the function cannot be one that needs to
--- 846,851 ----
*** ./src/include/fmgr.h.orig	Tue Mar 22 11:22:47 2005
--- ./src/include/fmgr.h	Tue Mar 22 11:23:05 2005
***************
*** 67,72 ****
--- 67,88 ----
  } FunctionCallInfoData;
  
  /*
+  * This macro initializes all the fields of a FunctionCallInfoData except
+  * for the arg[] and argnull[] arrays.  Performance testing has shown that
+  * the fastest way to set up argnull[] for small numbers of arguments is to
+  * explicitly set each required element to false, so we don't try to zero
+  * out the argnull[] array in the macro.
+  */
+ #define InitFunctionCallInfoData(Fcinfo, Flinfo, Nargs) \
+ 	do { \
+ 		(Fcinfo).flinfo = (Flinfo); \
+ 		(Fcinfo).context = NULL; \
+ 		(Fcinfo).resultinfo = NULL; \
+ 		(Fcinfo).isnull = false; \
+ 		(Fcinfo).nargs = (Nargs); \
+ 	} while (0)
+ 
+ /*
   * This routine fills a FmgrInfo struct, given the OID
   * of the function to be called.
   */