Fix convertScale() and equals() in ValueInterval

h2/src/main/org/h2/command/Parser.java

@@ -3562,7 +3562,11 @@ public class Parser {
                         read("SECOND");
                         qualifier = IntervalQualifier.SECOND;
                     }
+                    try {
                         r = ValueExpression.get(DateTimeUtils.parseInterval(qualifier, negative, s));
+                    } catch (Exception e) {
+                        throw DbException.get(ErrorCode.INVALID_DATETIME_CONSTANT_2, e, "INTERVAL", s);
+                    }
                 } else if (currentTokenType == VALUE &&
                         currentValue.getType() == Value.STRING) {
                     if (equalsToken("DATE", name) ||

h2/src/main/org/h2/value/ValueInterval.java

@@ -129,7 +129,7 @@ public class ValueInterval extends Value {
             }
             break;
         }
-        return from(qualifier, l, r);
+        return from(qualifier, negative ? -l : l, r);
     }
 
     @Override
@@ -201,7 +201,7 @@ public class ValueInterval extends Value {
             return false;
         }
         ValueInterval other = (ValueInterval) obj;
-        return type == other.type && leading == other.leading || remaining == other.remaining;
+        return type == other.type && leading == other.leading && remaining == other.remaining;
     }
 
     @Override

h2/src/test/org/h2/test/scripts/datatypes/interval.sql

@@ -75,23 +75,23 @@ INSERT INTO TEST VALUES (
 
 SELECT I01, I02, I03, I04, I05, I06 FROM TEST ORDER BY ID;
 > I01                I02                 I03               I04                I05                  I06
-> ------------------ ------------------- ----------------- ------------------ -------------------- --------------------------
+> ------------------ ------------------- ----------------- ------------------ -------------------- ---------------------------
 > INTERVAL '1' YEAR  INTERVAL '1' MONTH  INTERVAL '1' DAY  INTERVAL '1' HOUR  INTERVAL '1' MINUTE  INTERVAL '1.123457' SECOND
-> INTERVAL '-1' YEAR INTERVAL '-1' MONTH INTERVAL '-1' DAY INTERVAL '-1' HOUR INTERVAL '-1' MINUTE INTERVAL '1.123457' SECOND
+> INTERVAL '-1' YEAR INTERVAL '-1' MONTH INTERVAL '-1' DAY INTERVAL '-1' HOUR INTERVAL '-1' MINUTE INTERVAL '-1.123457' SECOND
 > rows (ordered): 2
 
 SELECT I07, I08, I09, I10 FROM TEST ORDER BY ID;
 > I07                           I08                          I09                               I10
-> ----------------------------- ---------------------------- --------------------------------- ------------------------------------------
+> ----------------------------- ---------------------------- --------------------------------- -------------------------------------------
 > INTERVAL '1-2' YEAR TO MONTH  INTERVAL '1 02' DAY TO HOUR  INTERVAL '1 02:03' DAY TO MINUTE  INTERVAL '1 02:03:04.123457' DAY TO SECOND
-> INTERVAL '-1-2' YEAR TO MONTH INTERVAL '-1 02' DAY TO HOUR INTERVAL '-1 02:03' DAY TO MINUTE INTERVAL '1 02:03:04.123457' DAY TO SECOND
+> INTERVAL '-1-2' YEAR TO MONTH INTERVAL '-1 02' DAY TO HOUR INTERVAL '-1 02:03' DAY TO MINUTE INTERVAL '-1 02:03:04.123457' DAY TO SECOND
 > rows (ordered): 2
 
 SELECT I11, I12, I12 FROM TEST ORDER BY ID;
 > I11                             I12                                       I12
-> ------------------------------- ---------------------------------------- ----------------------------------------
+> ------------------------------- ----------------------------------------- -----------------------------------------
 > INTERVAL '1:02' HOUR TO MINUTE  INTERVAL '1:02:03.123457' HOUR TO SECOND  INTERVAL '1:02:03.123457' HOUR TO SECOND
-> INTERVAL '-1:02' HOUR TO MINUTE INTERVAL '1:02:03.123457' HOUR TO SECOND INTERVAL '1:02:03.123457' HOUR TO SECOND
+> INTERVAL '-1:02' HOUR TO MINUTE INTERVAL '-1:02:03.123457' HOUR TO SECOND INTERVAL '-1:02:03.123457' HOUR TO SECOND
 > rows (ordered): 2
 
 SELECT J01, J02, J03, J04, J05, J06 FROM TEST ORDER BY ID;