[fix][runtime] Support union all between time and timestamp.

Author: nokiaMS

runtime/src/main/java/io/dingodb/expr/runtime/op/cast/TimeCastOpFactory.java

@@ -24,6 +24,11 @@
 
 import java.io.Serial;
 import java.sql.Time;
+import java.sql.Timestamp;
+import java.time.Instant;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.util.Calendar;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -137,6 +142,15 @@ protected Time evalNonNullValue(@NonNull Object value, ExprConfig config) {
                 return timeCast((Time) value);
             } else if (value instanceof Long) {
                 return timeCast((Long) value);
+            } else if (value instanceof Timestamp) {
+                Calendar calendar = Calendar.getInstance();
+                calendar.setTimeInMillis(((Timestamp) value).getTime());
+
+                int hour = calendar.get(Calendar.HOUR_OF_DAY);
+                int minute = calendar.get(Calendar.MINUTE);
+                int second = calendar.get(Calendar.SECOND);
+
+                return new Time(hour, minute, second);
             } else {
                 return null;
             }

runtime/src/main/java/io/dingodb/expr/runtime/op/cast/TimestampCastOp.java

@@ -26,7 +26,10 @@
 
 import java.math.BigDecimal;
 import java.sql.Date;
+import java.sql.Time;
 import java.sql.Timestamp;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
 
 //@Operators
 abstract class TimestampCastOp extends CastOp {
@@ -48,6 +51,14 @@ abstract class TimestampCastOp extends CastOp {
         return new Timestamp(DateTimeUtils.fromSecond(value));
     }
 
+    static @NonNull Timestamp timestampCast(@NonNull Time value) {
+        int hours = value.toLocalTime().getHour();
+        int minutes = value.toLocalTime().getMinute();
+        int seconds = value.toLocalTime().getSecond();
+        LocalDateTime localDatetime = LocalDate.now().atTime(hours,minutes,seconds);
+        return Timestamp.valueOf(localDatetime);
+    }
+
     static @Nullable Timestamp timestampCast(String value, @NonNull ExprConfig config) {
         return DateTimeUtils.parseTimestamp(value, config.getParseDateAndTimestampFormatters());
     }

runtime/src/main/java/io/dingodb/expr/runtime/op/cast/TimestampCastOpFactory.java

@@ -25,6 +25,7 @@
 import java.io.Serial;
 import java.math.BigDecimal;
 import java.sql.Date;
+import java.sql.Time;
 import java.sql.Timestamp;
 import java.util.HashMap;
 import java.util.Map;
@@ -47,6 +48,7 @@ private TimestampCastOpFactory() {
         opMap.put(keyOf(Types.TIMESTAMP), new TimestampCastTimestamp());
         opMap.put(keyOf(Types.INT), new TimestampCastInt());
         opMap.put(keyOf(Types.DATE), new TimestampCastDate());
+        opMap.put(keyOf(Types.TIME), new TimestampCastTime());
     }
 
     @Override
@@ -152,6 +154,20 @@ public OpKey getKey() {
         }
     }
 
+    public static final class TimestampCastTime extends TimestampCastOp {
+        private static final long serialVersionUID = 6942116289893890527L;
+
+        @Override
+        protected Timestamp evalNonNullValue(@NonNull Object value, ExprConfig config) {
+            return timestampCastAny.evalNonNullValue(value, config);
+        }
+
+        @Override
+        public OpKey getKey() {
+            return keyOf(Types.TIME);
+        }
+    }
+
     public static final class TimestampCastAny extends TimestampCastOp {
 
         @Serial
@@ -171,6 +187,8 @@ protected Timestamp evalNonNullValue(@NonNull Object value, ExprConfig config) {
                 return timestampCast((Long) value);
             } else if (value instanceof BigDecimal) {
                 return timestampCast((BigDecimal) value);
+            } else if (value instanceof Time) {
+                return timestampCast((Time) value);
             } else {
                 return null;
             }