diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_0/issue_363_temporal_key_0.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_0/issue_363_temporal_key_0.2.update.aql
index ea77da4..78a59a2 100644
--- a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_0/issue_363_temporal_key_0.2.update.aql
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_0/issue_363_temporal_key_0.2.update.aql
@@ -7,6 +7,6 @@
 
 use dataverse test;
 
-insert into dataset Employee({"id":datetime("1900-01-01T00:00:00"), "name": "John"})
-insert into dataset Employee({"id":datetime("2000-01-01T00:00:00"), "name": "Alex"})
-insert into dataset Employee({"id":datetime("2013-01-01T00:00:00"), "name": "Bob"})
\ No newline at end of file
+insert into dataset Employee({"id":year-month-duration("P16Y"), "name": "John"})
+insert into dataset Employee({"id":year-month-duration("-P37M"), "name": "Alex"})
+insert into dataset Employee({"id":year-month-duration("P2013Y"), "name": "Bob"})
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_1/issue_363_temporal_key_1.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_1/issue_363_temporal_key_1.1.ddl.aql
new file mode 100644
index 0000000..52c3053
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_1/issue_363_temporal_key_1.1.ddl.aql
@@ -0,0 +1,17 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Emp as open {
+id:datetime,
+name:string
+}
+
+create dataset Employee(Emp) primary key id;
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_1/issue_363_temporal_key_1.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_1/issue_363_temporal_key_1.2.update.aql
new file mode 100644
index 0000000..ea77da4
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_1/issue_363_temporal_key_1.2.update.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+use dataverse test;
+
+insert into dataset Employee({"id":datetime("1900-01-01T00:00:00"), "name": "John"})
+insert into dataset Employee({"id":datetime("2000-01-01T00:00:00"), "name": "Alex"})
+insert into dataset Employee({"id":datetime("2013-01-01T00:00:00"), "name": "Bob"})
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_1/issue_363_temporal_key_1.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_1/issue_363_temporal_key_1.3.query.aql
new file mode 100644
index 0000000..b8a7827
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_1/issue_363_temporal_key_1.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+for $x in dataset('Metadata.Dataset')
+where $x.DataverseName='test'
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_2/issue_363_temporal_key_2.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_2/issue_363_temporal_key_2.1.ddl.aql
new file mode 100644
index 0000000..54884c9
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_2/issue_363_temporal_key_2.1.ddl.aql
@@ -0,0 +1,17 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Emp as open {
+id:time,
+name:string
+}
+
+create dataset Employee(Emp) primary key id;
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_2/issue_363_temporal_key_2.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_2/issue_363_temporal_key_2.2.update.aql
new file mode 100644
index 0000000..da83cca
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_2/issue_363_temporal_key_2.2.update.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+use dataverse test;
+
+insert into dataset Employee({"id":time("03:10:00.493Z"), "name": "John"})
+insert into dataset Employee({"id":time("20:37:19+08:00"), "name": "Alex"})
+insert into dataset Employee({"id":time("21:39:17.948-04:00"), "name": "Bob"})
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_2/issue_363_temporal_key_2.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_2/issue_363_temporal_key_2.3.query.aql
new file mode 100644
index 0000000..b8a7827
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_2/issue_363_temporal_key_2.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+for $x in dataset('Metadata.Dataset')
+where $x.DataverseName='test'
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_3/issue_363_temporal_key_3.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_3/issue_363_temporal_key_3.1.ddl.aql
new file mode 100644
index 0000000..cc13649
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_3/issue_363_temporal_key_3.1.ddl.aql
@@ -0,0 +1,17 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Emp as open {
+id:date,
+name:string
+}
+
+create dataset Employee(Emp) primary key id;
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_3/issue_363_temporal_key_3.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_3/issue_363_temporal_key_3.2.update.aql
new file mode 100644
index 0000000..cf4fb63
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_3/issue_363_temporal_key_3.2.update.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+use dataverse test;
+
+insert into dataset Employee({"id":date("2010-01-01"), "name": "John"})
+insert into dataset Employee({"id":date("-1912-10-11"), "name": "Alex"})
+insert into dataset Employee({"id":date("0732-02-02"), "name": "Bob"})
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_3/issue_363_temporal_key_3.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_3/issue_363_temporal_key_3.3.query.aql
new file mode 100644
index 0000000..b8a7827
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_3/issue_363_temporal_key_3.3.query.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+for $x in dataset('Metadata.Dataset')
+where $x.DataverseName='test'
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_4/issue_363_temporal_key_4.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_4/issue_363_temporal_key_4.1.ddl.aql
new file mode 100644
index 0000000..3b82849
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_4/issue_363_temporal_key_4.1.ddl.aql
@@ -0,0 +1,17 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Emp as open {
+id:day-time-duration,
+name:string
+}
+
+create dataset Employee(Emp) primary key id;
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_4/issue_363_temporal_key_4.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_4/issue_363_temporal_key_4.2.update.aql
new file mode 100644
index 0000000..b3809e5
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_4/issue_363_temporal_key_4.2.update.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+
+use dataverse test;
+
+insert into dataset Employee({"id":day-time-duration("P380DT983M"), "name": "John"})
+insert into dataset Employee({"id":day-time-duration("-P3829H849.392S"), "name": "Alex"})
+insert into dataset Employee({"id":day-time-duration("PT93847M0.392S"), "name": "Bob"})
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_4/issue_363_temporal_key_4.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_4/issue_363_temporal_key_4.3.query.aql
new file mode 100644
index 0000000..e577524
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_key_4/issue_363_temporal_key_4.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset providing hints but use  whitespace 
+ * Expected Res : Success
+ * Date         : 29 Jan 2013
+ * Issue        : 251
+ */
+ 
+use dataverse test;
+
+for $x in dataset('Employee')
+where $x.id > day-time-duration("P10D")
+return $x
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_0/issue363_temporal_key_0.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_0/issue363_temporal_key_0.1.adm
index e69de29..bed9a9b 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_0/issue363_temporal_key_0.1.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_0/issue363_temporal_key_0.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "Employee", "DataTypeName": "Emp", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Wed May 01 21:31:36 PDT 2013", "DatasetId": 109, "PendingOp": 0 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_1/issue363_temporal_key_1.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_1/issue363_temporal_key_1.1.adm
new file mode 100644
index 0000000..bed9a9b
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_1/issue363_temporal_key_1.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "Employee", "DataTypeName": "Emp", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Wed May 01 21:31:36 PDT 2013", "DatasetId": 109, "PendingOp": 0 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_2/issue363_temporal_key_2.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_2/issue363_temporal_key_2.1.adm
new file mode 100644
index 0000000..bed9a9b
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_2/issue363_temporal_key_2.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "Employee", "DataTypeName": "Emp", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Wed May 01 21:31:36 PDT 2013", "DatasetId": 109, "PendingOp": 0 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_3/issue363_temporal_key_3.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_3/issue363_temporal_key_3.1.adm
new file mode 100644
index 0000000..bed9a9b
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_3/issue363_temporal_key_3.1.adm
@@ -0,0 +1 @@
+{ "DataverseName": "test", "DatasetName": "Employee", "DataTypeName": "Emp", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "id" ], "PrimaryKey": [ "id" ], "GroupName": "DEFAULT_NG_ALL_NODES" }, "ExternalDetails": null, "FeedDetails": null, "Hints": {{  }}, "Timestamp": "Wed May 01 21:31:36 PDT 2013", "DatasetId": 109, "PendingOp": 0 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_4/issue363_temporal_key_4.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_4/issue363_temporal_key_4.1.adm
new file mode 100644
index 0000000..99fe29d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_key_4/issue363_temporal_key_4.1.adm
@@ -0,0 +1,2 @@
+{ "id": day-time-duration("P380DT16H23M"), "name": "John" }
+{ "id": day-time-duration("P65DT4H7M0.392S"), "name": "Bob" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/basic/meta17/meta17.1.adm b/asterix-app/src/test/resources/metadata/results/basic/meta17/meta17.1.adm
index 2de89a6..d193dd1 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/meta17/meta17.1.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/meta17/meta17.1.adm
@@ -42,6 +42,7 @@
 { "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "day-time-duration", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
@@ -58,3 +59,4 @@
 { "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "year-month-duration", "Derived": null, "Timestamp": "Fri Feb 08 15:49:29 PST 2013" }
diff --git a/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype/metadata_datatype.1.adm b/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype/metadata_datatype.1.adm
index 84e2ca8..cecdb85 100644
--- a/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype/metadata_datatype.1.adm
+++ b/asterix-app/src/test/resources/metadata/results/basic/metadata_datatype/metadata_datatype.1.adm
@@ -42,6 +42,7 @@
 { "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "day-time-duration", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
@@ -58,3 +59,4 @@
 { "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
 { "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
+{ "DataverseName": "Metadata", "DatatypeName": "year-month-duration", "Derived": null, "Timestamp": "Fri Mar 29 11:19:47 PDT 2013" }
diff --git a/asterix-app/src/test/resources/metadata/testsuite.xml b/asterix-app/src/test/resources/metadata/testsuite.xml
index 6a69ca1..63487d4 100644
--- a/asterix-app/src/test/resources/metadata/testsuite.xml
+++ b/asterix-app/src/test/resources/metadata/testsuite.xml
@@ -155,6 +155,26 @@
         <output-dir compare="Text">issue_363_temporal_key_0</output-dir>
       </compilation-unit>
     </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="issue_363_temporal_key_1">
+        <output-dir compare="Text">issue_363_temporal_key_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="issue_363_temporal_key_2">
+        <output-dir compare="Text">issue_363_temporal_key_2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="issue_363_temporal_key_3">
+        <output-dir compare="Text">issue_363_temporal_key_3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="issue_363_temporal_key_4">
+        <output-dir compare="Text">issue_363_temporal_key_4</output-dir>
+      </compilation-unit>
+    </test-case>
   </test-group>
   <test-group name="exception">
     <test-case FilePath="exception">