Adjust input routines for float4, float8 and oid to reject the empty string

as valid input (it was previously treated as 0). This input was deprecated
in 8.0 (and a warning was emitted). Regression tests updated.

src/backend/utils/adt/float.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.112 2004/12/31 22:01:21 pgsql Exp $
+ *	  $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.113 2005/02/11 04:08:58 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -267,21 +267,12 @@ float4in(PG_FUNCTION_ARGS)
 	/*
 	 * Check for an empty-string input to begin with, to avoid the
 	 * vagaries of strtod() on different platforms.
-	 *
-	 * In releases prior to 8.0, we accepted an empty string as valid input
-	 * (yielding a float4 of 0). In 8.0, we accept empty strings, but emit
-	 * a warning noting that the feature is deprecated. In 8.1+, the
-	 * warning should be replaced by an error.
 	 */
 	if (*num == '\0')
-	{
-		ereport(WARNING,
-				(errcode(ERRCODE_WARNING_DEPRECATED_FEATURE),
-				 errmsg("deprecated input syntax for type real: \"\""),
-				 errdetail("This input will be rejected in "
-						   "a future release of PostgreSQL.")));
-		PG_RETURN_FLOAT4((float4) 0.0);
-	}
+		ereport(ERROR,
+				(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
+				 errmsg("invalid input syntax for type real: \"%s\"",
+						orig_num)));
 
 	/* skip leading whitespace */
 	while (*num != '\0' && isspace((unsigned char) *num))
@@ -444,21 +435,12 @@ float8in(PG_FUNCTION_ARGS)
 	/*
 	 * Check for an empty-string input to begin with, to avoid the
 	 * vagaries of strtod() on different platforms.
-	 *
-	 * In releases prior to 8.0, we accepted an empty string as valid input
-	 * (yielding a float8 of 0). In 8.0, we accept empty strings, but emit
-	 * a warning noting that the feature is deprecated. In 8.1+, the
-	 * warning should be replaced by an error.
 	 */
 	if (*num == '\0')
-	{
-		ereport(WARNING,
-				(errcode(ERRCODE_WARNING_DEPRECATED_FEATURE),
-		errmsg("deprecated input syntax for type double precision: \"\""),
-				 errdetail("This input will be rejected in "
-						   "a future release of PostgreSQL.")));
-		PG_RETURN_FLOAT8(0.0);
-	}
+		ereport(ERROR,
+				(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
+				 errmsg("invalid input syntax for type double precision: \"%s\"",
+						orig_num)));
 
 	/* skip leading whitespace */
 	while (*num != '\0' && isspace((unsigned char) *num))

src/backend/utils/adt/oid.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/utils/adt/oid.c,v 1.60 2004/12/31 22:01:22 pgsql Exp $
+ *	  $PostgreSQL: pgsql/src/backend/utils/adt/oid.c,v 1.61 2005/02/11 04:08:58 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -33,18 +33,11 @@ oidin_subr(const char *funcname, const char *s, char **endloc)
 	char	   *endptr;
 	Oid			result;
 
-	/*
-	 * In releases prior to 8.0, we accepted an empty string as valid
-	 * input (yielding an OID of 0). In 8.0, we accept empty strings, but
-	 * emit a warning noting that the feature is deprecated. In 8.1+, the
-	 * warning should be replaced by an error.
-	 */
 	if (*s == '\0')
-		ereport(WARNING,
-				(errcode(ERRCODE_WARNING_DEPRECATED_FEATURE),
-				 errmsg("deprecated input syntax for type oid: \"\""),
-				 errdetail("This input will be rejected in "
-						   "a future release of PostgreSQL.")));
+		ereport(ERROR,
+				(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
+				 errmsg("invalid input syntax for type oid: \"%s\"",
+						s)));
 
 	errno = 0;
 	cvt = strtoul(s, &endptr, 10);

src/test/regress/expected/float4-exp-three-digits.out

@@ -17,6 +17,8 @@ ERROR:  type "real" value out of range: underflow
 INSERT INTO FLOAT4_TBL(f1) VALUES ('-10e-40');
 ERROR:  type "real" value out of range: underflow
 -- bad input
+INSERT INTO FLOAT4_TBL(f1) VALUES ('');
+ERROR:  invalid input syntax for type real: ""
 INSERT INTO FLOAT4_TBL(f1) VALUES ('       ');
 ERROR:  invalid input syntax for type real: "       "
 INSERT INTO FLOAT4_TBL(f1) VALUES ('xyz');

src/test/regress/expected/float4.out

@@ -17,6 +17,8 @@ ERROR:  type "real" value out of range: underflow
 INSERT INTO FLOAT4_TBL(f1) VALUES ('-10e-40');
 ERROR:  type "real" value out of range: underflow
 -- bad input
+INSERT INTO FLOAT4_TBL(f1) VALUES ('');
+ERROR:  invalid input syntax for type real: ""
 INSERT INTO FLOAT4_TBL(f1) VALUES ('       ');
 ERROR:  invalid input syntax for type real: "       "
 INSERT INTO FLOAT4_TBL(f1) VALUES ('xyz');

src/test/regress/expected/float8-exp-three-digits-win32.out

@@ -17,6 +17,8 @@ ERROR:  "10e-400" is out of range for type double precision
 SELECT '-10e-400'::float8;
 ERROR:  "-10e-400" is out of range for type double precision
 -- bad input
+INSERT INTO FLOAT8_TBL(f1) VALUES ('');
+ERROR:  invalid input syntax for type double precision: ""
 INSERT INTO FLOAT8_TBL(f1) VALUES ('     ');
 ERROR:  invalid input syntax for type double precision: "     "
 INSERT INTO FLOAT8_TBL(f1) VALUES ('xyz');

src/test/regress/expected/float8-exp-three-digits.out

@@ -17,6 +17,8 @@ ERROR:  "10e-400" is out of range for type double precision
 SELECT '-10e-400'::float8;
 ERROR:  "-10e-400" is out of range for type double precision
 -- bad input
+INSERT INTO FLOAT8_TBL(f1) VALUES ('');
+ERROR:  invalid input syntax for type double precision: ""
 INSERT INTO FLOAT8_TBL(f1) VALUES ('     ');
 ERROR:  invalid input syntax for type double precision: "     "
 INSERT INTO FLOAT8_TBL(f1) VALUES ('xyz');

src/test/regress/expected/float8-small-is-zero.out

@@ -25,6 +25,8 @@ SELECT '-10e-400'::float8;
 (1 row)
 
 -- bad input
+INSERT INTO FLOAT8_TBL(f1) VALUES ('');
+ERROR:  invalid input syntax for type double precision: ""
 INSERT INTO FLOAT8_TBL(f1) VALUES ('     ');
 ERROR:  invalid input syntax for type double precision: "     "
 INSERT INTO FLOAT8_TBL(f1) VALUES ('xyz');

src/test/regress/expected/float8-small-is-zero_1.out

@@ -25,6 +25,8 @@ SELECT '-10e-400'::float8;
 (1 row)
 
 -- bad input
+INSERT INTO FLOAT8_TBL(f1) VALUES ('');
+ERROR:  invalid input syntax for type double precision: ""
 INSERT INTO FLOAT8_TBL(f1) VALUES ('     ');
 ERROR:  invalid input syntax for type double precision: "     "
 INSERT INTO FLOAT8_TBL(f1) VALUES ('xyz');

src/test/regress/expected/float8.out

@@ -17,6 +17,8 @@ ERROR:  "10e-400" is out of range for type double precision
 SELECT '-10e-400'::float8;
 ERROR:  "-10e-400" is out of range for type double precision
 -- bad input
+INSERT INTO FLOAT8_TBL(f1) VALUES ('');
+ERROR:  invalid input syntax for type double precision: ""
 INSERT INTO FLOAT8_TBL(f1) VALUES ('     ');
 ERROR:  invalid input syntax for type double precision: "     "
 INSERT INTO FLOAT8_TBL(f1) VALUES ('xyz');

src/test/regress/expected/oid.out

@@ -12,6 +12,10 @@ INSERT INTO OID_TBL(f1) VALUES ('   10  ');
 -- leading/trailing hard tab is also allowed
 INSERT INTO OID_TBL(f1) VALUES ('	  15 	  ');
 -- bad inputs 
+INSERT INTO OID_TBL(f1) VALUES ('');
+ERROR:  invalid input syntax for type oid: ""
+INSERT INTO OID_TBL(f1) VALUES ('    ');
+ERROR:  invalid input syntax for type oid: "    "
 INSERT INTO OID_TBL(f1) VALUES ('asdfasd');
 ERROR:  invalid input syntax for type oid: "asdfasd"
 INSERT INTO OID_TBL(f1) VALUES ('99asdfasd');
@@ -22,8 +26,6 @@ INSERT INTO OID_TBL(f1) VALUES ('    5d');
 ERROR:  invalid input syntax for type oid: "    5d"
 INSERT INTO OID_TBL(f1) VALUES ('5    5');
 ERROR:  invalid input syntax for type oid: "5    5"
-INSERT INTO OID_TBL(f1) VALUES ('    ');
-ERROR:  invalid input syntax for type oid: "    "
 INSERT INTO OID_TBL(f1) VALUES (' - 500');
 ERROR:  invalid input syntax for type oid: " - 500"
 INSERT INTO OID_TBL(f1) VALUES ('32958209582039852935');

src/test/regress/sql/float4.sql

@@ -17,6 +17,7 @@ INSERT INTO FLOAT4_TBL(f1) VALUES ('10e-40');
 INSERT INTO FLOAT4_TBL(f1) VALUES ('-10e-40');
 
 -- bad input
+INSERT INTO FLOAT4_TBL(f1) VALUES ('');
 INSERT INTO FLOAT4_TBL(f1) VALUES ('       ');
 INSERT INTO FLOAT4_TBL(f1) VALUES ('xyz');
 INSERT INTO FLOAT4_TBL(f1) VALUES ('5.0.0');

src/test/regress/sql/float8.sql

@@ -17,6 +17,7 @@ SELECT '10e-400'::float8;
 SELECT '-10e-400'::float8;
 
 -- bad input
+INSERT INTO FLOAT8_TBL(f1) VALUES ('');
 INSERT INTO FLOAT8_TBL(f1) VALUES ('     ');
 INSERT INTO FLOAT8_TBL(f1) VALUES ('xyz');
 INSERT INTO FLOAT8_TBL(f1) VALUES ('5.0.0');

src/test/regress/sql/oid.sql

@@ -15,13 +15,13 @@ INSERT INTO OID_TBL(f1) VALUES ('   10  ');
 INSERT INTO OID_TBL(f1) VALUES ('	  15 	  ');
 
 -- bad inputs 
-
+INSERT INTO OID_TBL(f1) VALUES ('');
+INSERT INTO OID_TBL(f1) VALUES ('    ');
 INSERT INTO OID_TBL(f1) VALUES ('asdfasd');
 INSERT INTO OID_TBL(f1) VALUES ('99asdfasd');
 INSERT INTO OID_TBL(f1) VALUES ('5    d');
 INSERT INTO OID_TBL(f1) VALUES ('    5d');
 INSERT INTO OID_TBL(f1) VALUES ('5    5');
-INSERT INTO OID_TBL(f1) VALUES ('    ');
 INSERT INTO OID_TBL(f1) VALUES (' - 500');
 INSERT INTO OID_TBL(f1) VALUES ('32958209582039852935');
 INSERT INTO OID_TBL(f1) VALUES ('-23582358720398502385');