diff --git a/src/interfaces/ecpg/ChangeLog b/src/interfaces/ecpg/ChangeLog
index 8146eb0e09eafec0f9e982518566c1ea46d5765b..3ac58aae4c5af510f3a0e47b893de5a353be671f 100644
--- a/src/interfaces/ecpg/ChangeLog
+++ b/src/interfaces/ecpg/ChangeLog
@@ -1645,6 +1645,12 @@ Sat Sep 20 11:06:13 CEST 2003
 	- Applied some bug fixing patches by Dave Cramer <dave@fastcrypt.com>.
 	- Added protecting defines to include files.
 	- Renamed my own strndup() function because of a name clash.
+	
+Mon Sep 22 15:13:02 CEST 2003
+
+	- Fixed order mismatch in processing "using" arguments.
+	- Fixed some minor things in test cases.
+	- Use defines for Informix error codes.
 	- Set ecpg version to 3.0.0
 	- Set ecpg library to 4.0.0
 	- Set pgtypes library to 1.0.0
diff --git a/src/interfaces/ecpg/compatlib/informix.c b/src/interfaces/ecpg/compatlib/informix.c
index 07b4dbb691e48ac797b484346d5b1b3a7a091cc6..e3559a7a4a869e26d5443433e91d8608c54626bd 100644
--- a/src/interfaces/ecpg/compatlib/informix.c
+++ b/src/interfaces/ecpg/compatlib/informix.c
@@ -20,26 +20,26 @@ deccall2(decimal * arg1, decimal * arg2, int (*ptr) (numeric *, numeric *))
 	int			i;
 
 	if ((a1 = PGTYPESnumeric_new()) == NULL)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	if ((a2 = PGTYPESnumeric_new()) == NULL)
 	{
 		PGTYPESnumeric_free(a1);
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 	}
 
 	if (PGTYPESnumeric_from_decimal(arg1, a1) != 0)
 	{
 		PGTYPESnumeric_free(a1);
 		PGTYPESnumeric_free(a2);
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 	}
 
 	if (PGTYPESnumeric_from_decimal(arg2, a2) != 0)
 	{
 		PGTYPESnumeric_free(a1);
 		PGTYPESnumeric_free(a2);
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 	}
 
 	i = (*ptr) (a1, a2);
@@ -65,19 +65,19 @@ deccall3(decimal * arg1, decimal * arg2, decimal * result, int (*ptr) (numeric *
 	}
 
 	if ((a1 = PGTYPESnumeric_new()) == NULL)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	if ((a2 = PGTYPESnumeric_new()) == NULL)
 	{
 		PGTYPESnumeric_free(a1);
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 	}
 
 	if ((nres = PGTYPESnumeric_new()) == NULL)
 	{
 		PGTYPESnumeric_free(a1);
 		PGTYPESnumeric_free(a2);
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 	}
 
 	if (PGTYPESnumeric_from_decimal(arg1, a1) != 0)
@@ -85,7 +85,7 @@ deccall3(decimal * arg1, decimal * arg2, decimal * result, int (*ptr) (numeric *
 		PGTYPESnumeric_free(a1);
 		PGTYPESnumeric_free(a2);
 		PGTYPESnumeric_free(nres);
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 	}
 
 	if (PGTYPESnumeric_from_decimal(arg2, a2) != 0)
@@ -93,7 +93,7 @@ deccall3(decimal * arg1, decimal * arg2, decimal * result, int (*ptr) (numeric *
 		PGTYPESnumeric_free(a1);
 		PGTYPESnumeric_free(a2);
 		PGTYPESnumeric_free(nres);
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 	}
 
 	i = (*ptr) (a1, a2, nres);
@@ -115,9 +115,9 @@ decadd(decimal * arg1, decimal * arg2, decimal * sum)
 	deccall3(arg1, arg2, sum, PGTYPESnumeric_add);
 
 	if (errno == PGTYPES_NUM_OVERFLOW)
-		return -1200;
+		return ECPG_INFORMIX_NUM_OVERFLOW;
 	else if (errno != 0)
-		return -1201;
+		return ECPG_INFORMIX_NUM_UNDERFLOW;
 	else
 		return 0;
 }
@@ -166,7 +166,7 @@ deccvasc(char *cp, int len, decimal * np)
 		return 0;
 
 	if (!str)
-		ret = -1201;
+		ret = ECPG_INFORMIX_NUM_UNDERFLOW;
 	else
 	{
 		result = PGTYPESnumeric_from_asc(str, NULL);
@@ -175,20 +175,20 @@ deccvasc(char *cp, int len, decimal * np)
 			switch (errno)
 			{
 				case PGTYPES_NUM_OVERFLOW:
-					ret = -1200;
+					ret = ECPG_INFORMIX_NUM_OVERFLOW;
 					break;
 				case PGTYPES_NUM_BAD_NUMERIC:
-					ret = -1213;
+					ret = ECPG_INFORMIX_BAD_NUMERIC;
 					break;
 				default:
-					ret = -1216;
+					ret = ECPG_INFORMIX_BAD_EXPONENT;
 					break;
 			}
 		}
 		else
 		{
 			if (PGTYPESnumeric_to_decimal(result, np) != 0)
-				ret = -1200;
+				ret = ECPG_INFORMIX_NUM_OVERFLOW;
 
 			free(result);
 		}
@@ -209,7 +209,7 @@ deccvdbl(double dbl, decimal * np)
 		return 0;
 
 	if (nres == NULL)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	result = PGTYPESnumeric_from_double(dbl, nres);
 	if (result == 0)
@@ -230,7 +230,7 @@ deccvint(int in, decimal * np)
 		return 0;
 
 	if (nres == NULL)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	result = PGTYPESnumeric_from_int(in, nres);
 	if (result == 0)
@@ -251,7 +251,7 @@ deccvlong(long lng, decimal * np)
 		return 0;
 
 	if (nres == NULL)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	result = PGTYPESnumeric_from_long(lng, nres);
 	if (result == 0)
@@ -270,13 +270,13 @@ decdiv(decimal * n1, decimal * n2, decimal * n3)
 		switch (errno)
 		{
 			case PGTYPES_NUM_DIVIDE_ZERO:
-				return -1202;
+				return ECPG_INFORMIX_DIVIDE_ZERO;
 				break;
 			case PGTYPES_NUM_OVERFLOW:
-				return -1200;
+				return ECPG_INFORMIX_NUM_OVERFLOW;
 				break;
 			default:
-				return -1201;
+				return ECPG_INFORMIX_NUM_UNDERFLOW;
 				break;
 		}
 
@@ -292,10 +292,10 @@ decmul(decimal * n1, decimal * n2, decimal * n3)
 		switch (errno)
 		{
 			case PGTYPES_NUM_OVERFLOW:
-				return -1200;
+				return ECPG_INFORMIX_NUM_OVERFLOW;
 				break;
 			default:
-				return -1201;
+				return ECPG_INFORMIX_NUM_UNDERFLOW;
 				break;
 		}
 
@@ -311,10 +311,10 @@ decsub(decimal * n1, decimal * n2, decimal * n3)
 		switch (errno)
 		{
 			case PGTYPES_NUM_OVERFLOW:
-				return -1200;
+				return ECPG_INFORMIX_NUM_OVERFLOW;
 				break;
 			default:
-				return -1201;
+				return ECPG_INFORMIX_NUM_UNDERFLOW;
 				break;
 		}
 
@@ -328,14 +328,14 @@ dectoasc(decimal * np, char *cp, int len, int right)
 	numeric    *nres = PGTYPESnumeric_new();
 
 	if (nres == NULL)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	rsetnull(CSTRINGTYPE, (char *) cp);
 	if (risnull(CDECIMALTYPE, (char *) np))
 		return 0;
 
 	if (PGTYPESnumeric_from_decimal(np, nres) != 0)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	if (right >= 0)
 		str = PGTYPESnumeric_to_asc(nres, right);
@@ -363,10 +363,10 @@ dectodbl(decimal * np, double *dblp)
 	int			i;
 
 	if (nres == NULL)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	if (PGTYPESnumeric_from_decimal(np, nres) != 0)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	i = PGTYPESnumeric_to_double(nres, dblp);
 	PGTYPESnumeric_free(nres);
@@ -381,15 +381,15 @@ dectoint(decimal * np, int *ip)
 	numeric    *nres = PGTYPESnumeric_new();
 
 	if (nres == NULL)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	if (PGTYPESnumeric_from_decimal(np, nres) != 0)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	ret = PGTYPESnumeric_to_int(nres, ip);
 
 	if (ret == PGTYPES_NUM_OVERFLOW)
-		ret = -1200;
+		ret = ECPG_INFORMIX_NUM_OVERFLOW;
 
 	return ret;
 }
@@ -401,15 +401,15 @@ dectolong(decimal * np, long *lngp)
 	numeric    *nres = PGTYPESnumeric_new();;
 
 	if (nres == NULL)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	if (PGTYPESnumeric_from_decimal(np, nres) != 0)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
 	ret = PGTYPESnumeric_to_long(nres, lngp);
 
 	if (ret == PGTYPES_NUM_OVERFLOW)
-		ret = -1200;
+		ret = ECPG_INFORMIX_NUM_OVERFLOW;
 
 	return ret;
 }
@@ -421,7 +421,7 @@ rdatestr(date d, char *str)
 	char	   *tmp = PGTYPESdate_to_asc(d);
 
 	if (!tmp)
-		return -1210;
+		return ECPG_INFORMIX_DATE_CONVERT;
 
 	/* move to user allocated buffer */
 	strcpy(str, tmp);
@@ -436,7 +436,7 @@ rstrdate(char *str, date * d)
 	date		dat = PGTYPESdate_from_asc(str, NULL);
 
 	if (errno != PGTYPES_DATE_BAD_DATE && dat == 0)
-		return -1218;
+		return ECPG_INFORMIX_BAD_DATE;
 
 	*d = dat;
 	return 0;
@@ -473,16 +473,16 @@ rdefmtdate(date * d, char *fmt, char *str)
 	switch (errno)
 	{
 		case PGTYPES_DATE_ERR_ENOSHORTDATE:
-			return -1209;
+			return ECPG_INFORMIX_ENOSHORTDATE;
 		case PGTYPES_DATE_ERR_EARGS:
 		case PGTYPES_DATE_ERR_ENOTDMY:
-			return -1212;
+			return ECPG_INFORMIX_ENOTDMY;
 		case PGTYPES_DATE_BAD_DAY:
-			return -1204;
+			return ECPG_INFORMIX_BAD_DAY;
 		case PGTYPES_DATE_BAD_MONTH:
-			return -1205;
+			return ECPG_INFORMIX_BAD_MONTH;
 		default:
-			return -1206;
+			return ECPG_INFORMIX_BAD_YEAR;
 	}
 }
 
@@ -493,9 +493,9 @@ rfmtdate(date d, char *fmt, char *str)
 		return 0;
 
 	if (errno == ENOMEM)
-		return -1211;
+		return ECPG_INFORMIX_OUT_OF_MEMORY;
 
-	return -1210;
+	return ECPG_INFORMIX_DATE_CONVERT;
 }
 
 int
@@ -538,7 +538,7 @@ dtcvasc(char *str, timestamp *ts)
 	if (**endptr)
 	{
 		/* extra characters exist at the end */
-		return -1264;
+		return ECPG_INFORMIX_EXTRA_CHARS;
 	}
 
 	/* everything went fine */
diff --git a/src/interfaces/ecpg/include/ecpg_informix.h b/src/interfaces/ecpg/include/ecpg_informix.h
index aea118ef18d25890a3453140069f4b532576ab2c..102db4bc16d2e2cc78adce138bfe4f1feb68e6c1 100644
--- a/src/interfaces/ecpg/include/ecpg_informix.h
+++ b/src/interfaces/ecpg/include/ecpg_informix.h
@@ -11,6 +11,21 @@
 
 #define SQLNOTFOUND 100
 
+#define ECPG_INFORMIX_NUM_OVERFLOW	-1200
+#define ECPG_INFORMIX_NUM_UNDERFLOW	-1201
+#define ECPG_INFORMIX_DIVIDE_ZERO	-1202
+#define ECPG_INFORMIX_BAD_YEAR		-1204
+#define ECPG_INFORMIX_BAD_MONTH		-1205
+#define ECPG_INFORMIX_BAD_DAY		-1206
+#define ECPG_INFORMIX_ENOSHORTDATE	-1209
+#define ECPG_INFORMIX_DATE_CONVERT	-1210
+#define ECPG_INFORMIX_OUT_OF_MEMORY	-1211
+#define ECPG_INFORMIX_ENOTDMY		-1212
+#define ECPG_INFORMIX_BAD_NUMERIC	-1213
+#define ECPG_INFORMIX_BAD_EXPONENT	-1216
+#define ECPG_INFORMIX_BAD_DATE		-1218
+#define ECPG_INFORMIX_EXTRA_CHARS	-1264
+
 extern int	rdatestr(date, char *);
 extern void 	rtoday(date *);
 extern int	rjulmdy(date, short *);
diff --git a/src/interfaces/ecpg/preproc/preproc.y b/src/interfaces/ecpg/preproc/preproc.y
index e74bfa231f2125ee71c1a5e688137b4eb35efe9a..eebd1930b9c71688ed149760e7efdca5674f170e 100644
--- a/src/interfaces/ecpg/preproc/preproc.y
+++ b/src/interfaces/ecpg/preproc/preproc.y
@@ -1,4 +1,4 @@
-/* $Header: /cvsroot/pgsql/src/interfaces/ecpg/preproc/Attic/preproc.y,v 1.257 2003/09/19 14:13:16 meskes Exp $ */
+/* $Header: /cvsroot/pgsql/src/interfaces/ecpg/preproc/Attic/preproc.y,v 1.258 2003/09/22 13:19:39 meskes Exp $ */
 
 /* Copyright comment */
 %{
@@ -268,16 +268,16 @@ add_additional_variables(char *name, bool insert)
 	}
 	if (insert)
 	{
-		/* add all those input variables that were given earlier */
+		/* add all those input variables that were given earlier 
+		 * note that we have to append here but have to keep the existing order */
 		for (p = ptr->argsinsert; p; p = p->next)
-			add_variable(&argsinsert, p->variable, p->indicator);
-	}
-	else
-	{
-		/* add all those output variables that were given earlier */
-		for (p = ptr->argsresult; p; p = p->next)
-			add_variable(&argsresult, p->variable, p->indicator);
+			append_variable(&argsinsert, p->variable, p->indicator);
 	}
+
+	/* add all those output variables that were given earlier */
+	for (p = ptr->argsresult; p; p = p->next)
+		add_variable(&argsresult, p->variable, p->indicator);
+	
 	return ptr;
 }
 %}
@@ -5320,7 +5320,7 @@ UsingConst: AllConst
 				char *length = mm_alloc(32);
 
 				sprintf(length, "%d", (int) strlen($1));
-				add_variable(&argsinsert, new_variable($1, ECPGmake_simple_type(ECPGt_const, length), 0), &no_indicator);
+				append_variable(&argsinsert, new_variable($1, ECPGmake_simple_type(ECPGt_const, length), 0), &no_indicator);
 			}
 		}
 		;
@@ -6168,7 +6168,7 @@ c_args: /*EMPTY*/		{ $$ = EMPTY; }
 coutputvariable: CVARIABLE indicator
 			{ add_variable(&argsresult, find_variable($1), find_variable($2)); }
 		| CVARIABLE
-			{ add_variable(&argsresult, find_variable($1), &no_indicator); } 
+			{ add_variable(&argsresult, find_variable($1), &no_indicator); }
 		;
 
 
diff --git a/src/interfaces/ecpg/preproc/variable.c b/src/interfaces/ecpg/preproc/variable.c
index d13561ab0ca5e19480a2fc330a4e242d8a76264d..7a3875832ab132fd360c3417f70f61f0c76f7469 100644
--- a/src/interfaces/ecpg/preproc/variable.c
+++ b/src/interfaces/ecpg/preproc/variable.c
@@ -345,7 +345,9 @@ reset_variables(void)
 	argsresult = NULL;
 }
 
-/* Insert a new variable into our request list. */
+/* Insert a new variable into our request list. 
+ * Note: The list is dumped from the end,
+ * so we have to add new entries at the beginning */
 void
 add_variable(struct arguments ** list, struct variable * var, struct variable * ind)
 {
diff --git a/src/interfaces/ecpg/test/num_test.pgc b/src/interfaces/ecpg/test/num_test.pgc
index 3b0a1dba15a59ec5755f74b00720fbd3ed1d9e21..03de51e0cc753581a7dc8749eb42987628577ae2 100644
--- a/src/interfaces/ecpg/test/num_test.pgc
+++ b/src/interfaces/ecpg/test/num_test.pgc
@@ -22,18 +22,18 @@ main()
 	
 	value1 = PGTYPESnumeric_new();
 	PGTYPESnumeric_from_int(1407, value1);
-	text = PGTYPESnumeric_to_asc(value1, 0);
+	text = PGTYPESnumeric_to_asc(value1, -1);
 	printf("long = %s\n", text);
 		
 	value1 = PGTYPESnumeric_from_asc("2369.7", NULL);
 	value2 = PGTYPESnumeric_from_asc("10.0", NULL);
 	res = PGTYPESnumeric_new();
 	PGTYPESnumeric_add(value1, value2, res);
-	text = PGTYPESnumeric_to_asc(res, 0);
+	text = PGTYPESnumeric_to_asc(res, -1);
 	printf("add = %s\n", text);
 	
 	PGTYPESnumeric_sub(res, value2, res);
-	text = PGTYPESnumeric_to_asc(res, 0);
+	text = PGTYPESnumeric_to_asc(res, -1);
 	printf("sub = %s\n", text);
 		
 	PGTYPESnumeric_copy(res, &des);
@@ -45,12 +45,12 @@ main()
 	exec sql select num into :des from test where text = 'test';
 	
 	PGTYPESnumeric_mul(res, &des, res);
-	text = PGTYPESnumeric_to_asc(res, 0);
+	text = PGTYPESnumeric_to_asc(res, -1);
 	printf("mul = %s\n", text);
 
 	value2 = PGTYPESnumeric_from_asc("10000", NULL);
 	PGTYPESnumeric_div(res, value2, res);
-	text = PGTYPESnumeric_to_asc(res, 0);
+	text = PGTYPESnumeric_to_asc(res, -1);
 	PGTYPESnumeric_to_double(res, &d);
 	printf("div = %s %e\n", text, d);
 
diff --git a/src/interfaces/ecpg/test/test_informix.pgc b/src/interfaces/ecpg/test/test_informix.pgc
index a502ad623f90ef206a56554da14e258736be1f82..e71f34b38e1eb24a6812797df0de13b69c938524 100644
--- a/src/interfaces/ecpg/test/test_informix.pgc
+++ b/src/interfaces/ecpg/test/test_informix.pgc
@@ -20,13 +20,13 @@ int main()
 	$commit;
 	
 	$insert into test (i, j) values (7, 2);
-	printf("%ld: %s\n", sqlca.sqlcode, sqlca.sqlerrm.sqlerrmc);
+	printf("INSERT: %ld=%s\n", sqlca.sqlcode, sqlca.sqlerrm.sqlerrmc);
 	if (sqlca.sqlcode != 0) $rollback;
 
 	$insert into test (i, j) values (:i, 1);
 
 	$select i from test where j=(select j from test);
-	printf("%ld: %s\n", sqlca.sqlcode, sqlca.sqlerrm.sqlerrmc);
+	printf("SELECT: %ld=%s\n", sqlca.sqlcode, sqlca.sqlerrm.sqlerrmc);
 	if (sqlca.sqlcode != 0) $rollback;
 
 	$declare c cursor for select * from test where i <= :i;
@@ -55,7 +55,7 @@ int main()
 	deccvint(14, &m);
 	decadd(&j, &m, &n);
 	$delete from test where i=:n;
-	printf("delete: %ld\n", sqlca.sqlcode);
+	printf("DELETE: %ld\n", sqlca.sqlcode);
 
 	$select 1 from test where i=14;
 	printf("Exists: %ld\n", sqlca.sqlcode);