Merge pull request #1251 from katzyn/cast

Fix SQL representation of CAST for types with fractional seconds precision

h2/src/main/org/h2/table/Column.java

@@ -502,7 +502,12 @@ public class Column {
         if (originalSQL != null) {
             buff.append(originalSQL);
         } else {
-            buff.append(DataType.getDataType(type).name);
+            DataType dataType = DataType.getDataType(type);
+            if (type == Value.TIMESTAMP_TZ) {
+                buff.append("TIMESTAMP");
+            } else {
+                buff.append(dataType.name);
+            }
             switch (type) {
             case Value.DECIMAL:
                 buff.append('(').append(precision).append(", ").append(scale).append(')');
@@ -525,6 +530,16 @@ public class Column {
                     buff.append('(').append(precision).append(')');
                 }
                 break;
+            case Value.TIME:
+            case Value.TIMESTAMP:
+            case Value.TIMESTAMP_TZ:
+                if (scale != dataType.defaultScale) {
+                    buff.append('(').append(scale).append(')');
+                }
+                if (type == Value.TIMESTAMP_TZ) {
+                    buff.append(" WITH TIME ZONE");
+                }
+                break;
             default:
             }
         }

h2/src/test/org/h2/test/scripts/functions/system/cast.sql

@@ -99,3 +99,30 @@ select cast('000102030405060708090a0b0c0d0e0f' as uuid);
 
 select -cast(0 as double);
 >> 0.0
+
+SELECT * FROM (SELECT CAST('11:11:11.123456789' AS TIME));
+>> 11:11:11
+
+SELECT * FROM (SELECT CAST('11:11:11.123456789' AS TIME(0)));
+>> 11:11:11
+
+SELECT * FROM (SELECT CAST('11:11:11.123456789' AS TIME(9)));
+>> 11:11:11.123456789
+
+SELECT * FROM (SELECT CAST('2000-01-01 11:11:11.123456789' AS TIMESTAMP));
+>> 2000-01-01 11:11:11.123457
+
+SELECT * FROM (SELECT CAST('2000-01-01 11:11:11.123456789' AS TIMESTAMP(0)));
+>> 2000-01-01 11:11:11
+
+SELECT * FROM (SELECT CAST('2000-01-01 11:11:11.123456789' AS TIMESTAMP(9)));
+>> 2000-01-01 11:11:11.123456789
+
+SELECT * FROM (SELECT CAST('2000-01-01 11:11:11.123456789Z' AS TIMESTAMP WITH TIME ZONE));
+>> 2000-01-01 11:11:11.123457+00
+
+SELECT * FROM (SELECT CAST('2000-01-01 11:11:11.123456789Z' AS TIMESTAMP(0) WITH TIME ZONE));
+>> 2000-01-01 11:11:11+00
+
+SELECT * FROM (SELECT CAST('2000-01-01 11:11:11.123456789Z' AS TIMESTAMP(9) WITH TIME ZONE));
+>> 2000-01-01 11:11:11.123456789+00