Add and use DataType.isDateTimeType()

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

@@ -837,17 +837,6 @@ public class MetaTable extends Table {
                     Column c = cols[j];
                     DataType dataType = c.getDataType();
                     String precision = Integer.toString(c.getPrecisionAsInt());
-                    boolean isDateTime;
-                    switch (dataType.type) {
-                    case Value.TIME:
-                    case Value.DATE:
-                    case Value.TIMESTAMP:
-                    case Value.TIMESTAMP_TZ:
-                        isDateTime = true;
-                        break;
-                    default:
-                        isDateTime = false;
-                    }
                     Sequence sequence = c.getSequence();
                     add(rows,
                             // TABLE_CATALOG
@@ -877,7 +866,7 @@ public class MetaTable extends Table {
                             // NUMERIC_SCALE
                             Integer.toString(c.getScale()),
                             // DATETIME_PRECISION
-                            isDateTime ? Integer.toString(c.getScale()) : null,
+                            DataType.isDateTimeType(dataType.type) ? Integer.toString(c.getScale()) : null,
                             // CHARACTER_SET_NAME
                             CHARACTER_SET_NAME,
                             // COLLATION_NAME

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

@@ -1225,6 +1225,25 @@ public class DataType {
         return result;
     }
 
+    /**
+     * Check if the given value type is a date-time type (TIME, DATE, TIMESTAMP,
+     * TIMESTAMP_TZ).
+     *
+     * @param type the value type
+     * @return true if the value type is a date-time type
+     */
+    public static boolean isDateTimeType(int type) {
+        switch (type) {
+        case Value.TIME:
+        case Value.DATE:
+        case Value.TIMESTAMP:
+        case Value.TIMESTAMP_TZ:
+            return true;
+        default:
+            return false;
+        }
+    }
+
     /**
      * Check if the given value type is a large object (BLOB or CLOB).
      *