Add INTERVAL support to network layer

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

@@ -19,6 +19,7 @@ import java.sql.ResultSetMetaData;
 import java.sql.SQLException;
 import java.sql.Timestamp;
 import org.h2.api.ErrorCode;
+import org.h2.api.IntervalQualifier;
 import org.h2.engine.Constants;
 import org.h2.engine.SessionInterface;
 import org.h2.message.DbException;
@@ -515,6 +516,26 @@ public class Transfer {
                 writeString(v.getString());
             }
             break;
+        case Value.INTERVAL_YEAR:
+        case Value.INTERVAL_MONTH:
+        case Value.INTERVAL_DAY:
+        case Value.INTERVAL_HOUR:
+        case Value.INTERVAL_MINUTE:
+            writeLong(((ValueInterval) v).getLeading());
+            break;
+        case Value.INTERVAL_SECOND:
+        case Value.INTERVAL_YEAR_TO_MONTH:
+        case Value.INTERVAL_DAY_TO_HOUR:
+        case Value.INTERVAL_DAY_TO_MINUTE:
+        case Value.INTERVAL_DAY_TO_SECOND:
+        case Value.INTERVAL_HOUR_TO_MINUTE:
+        case Value.INTERVAL_HOUR_TO_SECOND:
+        case Value.INTERVAL_MINUTE_TO_SECOND: {
+            ValueInterval interval = (ValueInterval) v;
+            writeLong(interval.getLeading());
+            writeLong(interval.getRemaining());
+            break;
+        }
         default:
             if (JdbcUtils.customDataTypesHandler != null) {
                 writeBytes(v.getBytesNoCopy());
@@ -682,6 +703,21 @@ public class Transfer {
                 return ValueGeometry.get(readBytes());
             }
             return ValueGeometry.get(readString());
+        case Value.INTERVAL_YEAR:
+        case Value.INTERVAL_MONTH:
+        case Value.INTERVAL_DAY:
+        case Value.INTERVAL_HOUR:
+        case Value.INTERVAL_MINUTE:
+            return ValueInterval.from(IntervalQualifier.valueOf(type - Value.INTERVAL_YEAR), readLong(), 0L);
+        case Value.INTERVAL_SECOND:
+        case Value.INTERVAL_YEAR_TO_MONTH:
+        case Value.INTERVAL_DAY_TO_HOUR:
+        case Value.INTERVAL_DAY_TO_MINUTE:
+        case Value.INTERVAL_DAY_TO_SECOND:
+        case Value.INTERVAL_HOUR_TO_MINUTE:
+        case Value.INTERVAL_HOUR_TO_SECOND:
+        case Value.INTERVAL_MINUTE_TO_SECOND:
+            return ValueInterval.from(IntervalQualifier.valueOf(type - Value.INTERVAL_YEAR), readLong(), readLong());
         default:
             if (JdbcUtils.customDataTypesHandler != null) {
                 return JdbcUtils.customDataTypesHandler.convert(