Merge pull request #29 from Spatio-Temporal-Lab/fix_timestamp

try fix timestamp

Author: abcwuhang

cupid-db-core/src/main/java/org/urbcomp/cupid/db/metadata/CalciteHelper.java

@@ -49,6 +49,7 @@ public static Connection createConnection() throws SQLException {
         final Properties p = new Properties();
         p.put(CalciteConnectionProperty.CASE_SENSITIVE.camelName(), "false");
         p.put(CalciteConnectionProperty.MODEL.camelName(), "inline:" + modelJson());
+        p.put(CalciteConnectionProperty.TIME_ZONE.camelName(), "UTC");
         return DriverManager.getConnection("jdbc:calcite:fun=spatial", p);
     }
 }

cupid-db-core/src/test/scala/org/urbcomp/cupid/db/TrajectoryFunctionTest.scala

@@ -162,15 +162,17 @@ class TrajectoryFunctionTest extends AbstractCalciteFunctionTest {
     )
     resultSet1.next()
     // FIXME timezone
-    // assertEquals("2018-10-09 07:30:21.0", resultSet1.getObject(1).toString)
-    // assertEquals("2018-10-09 07:30:27.0", resultSet1.getObject(2).toString)
+    assertEquals("2018-10-09 07:30:21.0", resultSet1.getObject(1).toString)
+    assertEquals("2018-10-09 07:30:21.0", resultSet1.getObject("startTime").toString)
+    assertEquals("2018-10-09 07:30:27.0", resultSet1.getObject(2).toString)
     assertEquals(
       "[POINT (108.99549 34.26714), POINT (108.9955 34.26707), POINT (108.99549 34.26704)]",
       resultSet1.getObject(3).toString
     )
     resultSet1.next()
-    // assertEquals("2018-10-09 07:32:51.0", resultSet1.getObject(1).toString)
-    // assertEquals("2018-10-09 07:32:57.0", resultSet1.getObject(2).toString)
+    // FIXME timezone
+    assertEquals("2018-10-09 07:32:51.0", resultSet1.getObject(1).toString)
+    assertEquals("2018-10-09 07:32:57.0", resultSet1.getObject(2).toString)
     assertEquals(
       "[POINT (108.99652 34.25826), POINT (108.99647 34.25821), POINT (108.99639 34.25818)]",
       resultSet1.getObject(3).toString