Implement ValueTime.convertScale()

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

@@ -154,6 +154,25 @@ public class ValueTime extends Value {
         return DISPLAY_SIZE;
     }
 
+    @Override
+    public Value convertScale(boolean onlyToSmallerScale, int targetScale) {
+        if (targetScale >= MAXIMUM_SCALE) {
+            return this;
+        }
+        if (targetScale < 0) {
+            throw DbException.getInvalidValueException("scale", targetScale);
+        }
+        long n = nanos;
+        long n2 = DateTimeUtils.convertScale(n, targetScale);
+        if (n2 == n) {
+            return this;
+        }
+        if (n2 >= DateTimeUtils.NANOS_PER_DAY) {
+            n2 = DateTimeUtils.NANOS_PER_DAY - 1;
+        }
+        return fromNanos(n2);
+    }
+
     @Override
     protected int compareSecure(Value o, CompareMode mode) {
         return Long.compare(nanos, ((ValueTime) o).nanos);

h2/src/test/org/h2/test/jaqu/SupportedTypes.java

@@ -85,7 +85,7 @@ public class SupportedTypes {
         s.myString = Long.toHexString(rand.nextLong());
         s.myUtilDate = new java.util.Date(rand.nextLong());
         s.mySqlDate = new java.sql.Date(rand.nextLong());
-        s.mySqlTime = new java.sql.Time(rand.nextLong());
+        s.mySqlTime = new java.sql.Time(rand.nextLong() / 1_000 * 1_000);
         s.mySqlTimestamp = new java.sql.Timestamp(rand.nextLong());
         return s;
     }

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

@@ -57,3 +57,32 @@ SELECT TIME FROM TEST;
 
 DROP TABLE TEST;
 > ok
+
+CREATE TABLE TEST(T TIME, T0 TIME(0), T1 TIME(1), T2 TIME(2), T3 TIME(3), T4 TIME(4), T5 TIME(5), T6 TIME(6),
+    T7 TIME(7), T8 TIME(8), T9 TIME(9));
+> ok
+
+INSERT INTO TEST VALUES ('08:00:00.123456789', '08:00:00.123456789', '08:00:00.123456789', '08:00:00.123456789',
+    '08:00:00.123456789', '08:00:00.123456789', '08:00:00.123456789', '08:00:00.123456789', '08:00:00.123456789',
+    '08:00:00.123456789', '08:00:00.123456789');
+> update count: 1
+
+SELECT * FROM TEST;
+> T        T0       T1         T2          T3           T4            T5             T6              T7               T8                T9
+> -------- -------- ---------- ----------- ------------ ------------- -------------- --------------- ---------------- ----------------- ------------------
+> 08:00:00 08:00:00 08:00:00.1 08:00:00.12 08:00:00.123 08:00:00.1235 08:00:00.12346 08:00:00.123457 08:00:00.1234568 08:00:00.12345679 08:00:00.123456789
+> rows: 1
+
+DELETE FROM TEST;
+> update count: 1
+
+INSERT INTO TEST(T0) VALUES ('23:59:59.999999999');
+> update count: 1
+
+SELECT T0 FROM TEST;
+> T0
+> ------------------
+> 23:59:59.999999999
+
+DROP TABLE TEST;
+> ok

h2/src/test/org/h2/test/scripts/testScript.sql

@@ -6927,7 +6927,7 @@ SELECT XD+1, XD-1, XD-XD FROM TEST;
 > rows: 4
 
 SELECT ID, CAST(XT AS DATE) T2D, CAST(XTS AS DATE) TS2D,
-CAST(XD AS TIME) D2T, CAST(XTS AS TIME) TS2T,
+CAST(XD AS TIME) D2T, CAST(XTS AS TIME(9)) TS2T,
 CAST(XT AS TIMESTAMP) D2TS, CAST(XD AS TIMESTAMP) D2TS FROM TEST;
 > ID   T2D        TS2D       D2T      TS2T               D2TS                  D2TS
 > ---- ---------- ---------- -------- ------------------ --------------------- ---------------------