http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64/serial_stddev_int64.2.update.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64/serial_stddev_int64.2.update.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64/serial_stddev_int64.2.update.sqlpp
new file mode 100644
index 0000000..b460af2
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64/serial_stddev_int64.2.update.sqlpp
@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+insert into Test
+select element {'id':0,'gid':1,'val':bigint('4'),'valplus':bigint('1')};
+insert into Test
+select element {'id':1,'gid':1,'val':bigint('5')};
+insert into Test
+select element {'id':2,'gid':1,'val':bigint('6'),'valplus':bigint('2')};
+insert into Test
+select element {'id':3,'gid':1,'val':bigint('4'),'valplus':bigint('3')};
+insert into Test
+select element {'id':4,'gid':1,'val':bigint('4'),'valplus':null};

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64/serial_stddev_int64.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64/serial_stddev_int64.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64/serial_stddev_int64.3.query.sqlpp
new file mode 100644
index 0000000..c142973
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64/serial_stddev_int64.3.query.sqlpp
@@ -0,0 +1,25 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+select gid, strict_stddev((select value g.val from g)) as stddev
+from Test as t
+/* +hash */
+group by t.gid as gid group as g(val as val);

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64_null/serial_stddev_int64_null.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64_null/serial_stddev_int64_null.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64_null/serial_stddev_int64_null.1.ddl.sqlpp
new file mode 100644
index 0000000..5e9972c
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64_null/serial_stddev_int64_null.1.ddl.sqlpp
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+
+create type test.TestType as
+{
+  id : bigint,
+  gid : bigint,
+  val : bigint
+};
+
+create  dataset Test(TestType) primary key id;

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64_null/serial_stddev_int64_null.2.update.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64_null/serial_stddev_int64_null.2.update.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64_null/serial_stddev_int64_null.2.update.sqlpp
new file mode 100644
index 0000000..b460af2
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64_null/serial_stddev_int64_null.2.update.sqlpp
@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+insert into Test
+select element {'id':0,'gid':1,'val':bigint('4'),'valplus':bigint('1')};
+insert into Test
+select element {'id':1,'gid':1,'val':bigint('5')};
+insert into Test
+select element {'id':2,'gid':1,'val':bigint('6'),'valplus':bigint('2')};
+insert into Test
+select element {'id':3,'gid':1,'val':bigint('4'),'valplus':bigint('3')};
+insert into Test
+select element {'id':4,'gid':1,'val':bigint('4'),'valplus':null};

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64_null/serial_stddev_int64_null.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64_null/serial_stddev_int64_null.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64_null/serial_stddev_int64_null.3.query.sqlpp
new file mode 100644
index 0000000..9d62353
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int64_null/serial_stddev_int64_null.3.query.sqlpp
@@ -0,0 +1,25 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+select gid, strict_stddev((select value g.valplus from g)) as stddev
+from Test as t
+/* +hash */
+group by t.gid as gid group as g(valplus as valplus);

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8/serial_stddev_int8.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8/serial_stddev_int8.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8/serial_stddev_int8.1.ddl.sqlpp
new file mode 100644
index 0000000..c45dbfe
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8/serial_stddev_int8.1.ddl.sqlpp
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+
+create type test.TestType as
+{
+  id : bigint,
+  gid : bigint,
+  val : tinyint
+};
+
+create  dataset Test(TestType) primary key id;

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8/serial_stddev_int8.2.update.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8/serial_stddev_int8.2.update.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8/serial_stddev_int8.2.update.sqlpp
new file mode 100644
index 0000000..5a65a20
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8/serial_stddev_int8.2.update.sqlpp
@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+insert into Test
+select element {'id':0,'gid':1,'val':tinyint('4'),'valplus':tinyint('1')};
+insert into Test
+select element {'id':1,'gid':1,'val':tinyint('5')};
+insert into Test
+select element {'id':2,'gid':1,'val':tinyint('6'),'valplus':tinyint('2')};
+insert into Test
+select element {'id':3,'gid':1,'val':tinyint('4'),'valplus':tinyint('3')};
+insert into Test
+select element {'id':4,'gid':1,'val':tinyint('4'),'valplus':null};

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8/serial_stddev_int8.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8/serial_stddev_int8.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8/serial_stddev_int8.3.query.sqlpp
new file mode 100644
index 0000000..c142973
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8/serial_stddev_int8.3.query.sqlpp
@@ -0,0 +1,25 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+select gid, strict_stddev((select value g.val from g)) as stddev
+from Test as t
+/* +hash */
+group by t.gid as gid group as g(val as val);

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8_null/serial_stddev_int8_null.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8_null/serial_stddev_int8_null.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8_null/serial_stddev_int8_null.1.ddl.sqlpp
new file mode 100644
index 0000000..c45dbfe
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8_null/serial_stddev_int8_null.1.ddl.sqlpp
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+
+create type test.TestType as
+{
+  id : bigint,
+  gid : bigint,
+  val : tinyint
+};
+
+create  dataset Test(TestType) primary key id;

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8_null/serial_stddev_int8_null.2.update.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8_null/serial_stddev_int8_null.2.update.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8_null/serial_stddev_int8_null.2.update.sqlpp
new file mode 100644
index 0000000..5a65a20
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8_null/serial_stddev_int8_null.2.update.sqlpp
@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+insert into Test
+select element {'id':0,'gid':1,'val':tinyint('4'),'valplus':tinyint('1')};
+insert into Test
+select element {'id':1,'gid':1,'val':tinyint('5')};
+insert into Test
+select element {'id':2,'gid':1,'val':tinyint('6'),'valplus':tinyint('2')};
+insert into Test
+select element {'id':3,'gid':1,'val':tinyint('4'),'valplus':tinyint('3')};
+insert into Test
+select element {'id':4,'gid':1,'val':tinyint('4'),'valplus':null};

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8_null/serial_stddev_int8_null.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8_null/serial_stddev_int8_null.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8_null/serial_stddev_int8_null.3.query.sqlpp
new file mode 100644
index 0000000..9d62353
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_int8_null/serial_stddev_int8_null.3.query.sqlpp
@@ -0,0 +1,25 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+select gid, strict_stddev((select value g.valplus from g)) as stddev
+from Test as t
+/* +hash */
+group by t.gid as gid group as g(valplus as valplus);

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_mixed/serial_stddev_mixed.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_mixed/serial_stddev_mixed.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_mixed/serial_stddev_mixed.1.ddl.sqlpp
new file mode 100644
index 0000000..da0bd7b
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_mixed/serial_stddev_mixed.1.ddl.sqlpp
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+
+create type test.TestType as
+{
+  id : bigint,
+  gid : bigint,
+  val : double
+};
+
+create  dataset Test(TestType) primary key id;

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_mixed/serial_stddev_mixed.2.update.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_mixed/serial_stddev_mixed.2.update.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_mixed/serial_stddev_mixed.2.update.sqlpp
new file mode 100644
index 0000000..1b4eac9
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_mixed/serial_stddev_mixed.2.update.sqlpp
@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+insert into Test
+select element {'id':0,'gid':1,'val':double(4.32),'valplus':float('2.0')};
+insert into Test
+select element {'id':1,'gid':1,'val':double(5.32),'valplus':float('1.0')};
+insert into Test
+select element {'id':2,'gid':1,'val':double(6.32),'valplus':'hello world'};
+insert into Test
+select element {'id':3,'gid':1,'val':double(4.32),'valplus':double('3.0')};

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_mixed/serial_stddev_mixed.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_mixed/serial_stddev_mixed.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_mixed/serial_stddev_mixed.3.query.sqlpp
new file mode 100644
index 0000000..db27904
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/serial_stddev_mixed/serial_stddev_mixed.3.query.sqlpp
@@ -0,0 +1,30 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+ /*
+ * Description  : Run serial-stddev over an ordered list with mixed types
+ * Expected Res : Failure
+ * Date         : March 5th 2018
+ */
+
+use test;
+
+select gid, strict_stddev((select value g.valplus from g)) as stddev
+from Test as t
+/* +hash */
+group by t.gid as gid group as g(valplus as valplus);

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double/stddev_double.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double/stddev_double.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double/stddev_double.1.ddl.sqlpp
new file mode 100644
index 0000000..ad97753
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double/stddev_double.1.ddl.sqlpp
@@ -0,0 +1,25 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double/stddev_double.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double/stddev_double.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double/stddev_double.3.query.sqlpp
new file mode 100644
index 0000000..c39ca57
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double/stddev_double.3.query.sqlpp
@@ -0,0 +1,23 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+select element strict_stddev((
+    select element x
+    from  [1.0,2.0,double('3.0')] as x
+));

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double_null/stddev_double_null.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double_null/stddev_double_null.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double_null/stddev_double_null.1.ddl.sqlpp
new file mode 100644
index 0000000..3f2c5bf
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double_null/stddev_double_null.1.ddl.sqlpp
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+
+create type test.NumericType as
+{
+  id : integer,
+  int8Field : tinyint?,
+  int16Field : smallint?,
+  int32Field : integer?,
+  int64Field : bigint?,
+  floatField : float?,
+  doubleField : double?
+};
+
+create external  dataset Numeric(NumericType) using 
localfs((`path`=`asterix_nc1://data/nontagged/numericData.json`),(`format`=`adm`));
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double_null/stddev_double_null.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double_null/stddev_double_null.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double_null/stddev_double_null.3.query.sqlpp
new file mode 100644
index 0000000..b86d514
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_double_null/stddev_double_null.3.query.sqlpp
@@ -0,0 +1,26 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+{'stddev':test.strict_stddev((
+    select element x.doubleField
+    from  Numeric as x
+))};

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_01/stddev_empty_01.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_01/stddev_empty_01.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_01/stddev_empty_01.1.ddl.sqlpp
new file mode 100644
index 0000000..2ae248a
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_01/stddev_empty_01.1.ddl.sqlpp
@@ -0,0 +1,27 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+/*
+ * Description    : Tests that avg aggregation correctly returns null for an 
empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_01/stddev_empty_01.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_01/stddev_empty_01.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_01/stddev_empty_01.3.query.sqlpp
new file mode 100644
index 0000000..4dd9c6c
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_01/stddev_empty_01.3.query.sqlpp
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+/*
+ * Description    : Tests that avg aggregation correctly returns null for an 
empty stream,
+ *                  without an aggregate combiner.
+ * Success        : Yes
+ */
+
+use test;
+
+
+select element test.strict_stddev((
+    select element x
+    from  [1,2,3] as x
+    where (x > 10)
+));

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_02/stddev_empty_02.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_02/stddev_empty_02.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_02/stddev_empty_02.1.ddl.sqlpp
new file mode 100644
index 0000000..c65aa35
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_02/stddev_empty_02.1.ddl.sqlpp
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+/*
+ * Description    : Tests that avg aggregation correctly returns null for an 
empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+
+create type test.TestType as
+ closed {
+  id : integer,
+  val : double
+};
+
+create  dataset Test(TestType) primary key id;
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_02/stddev_empty_02.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_02/stddev_empty_02.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_02/stddev_empty_02.3.query.sqlpp
new file mode 100644
index 0000000..c874bee
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_empty_02/stddev_empty_02.3.query.sqlpp
@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+/*
+ * Description    : Tests that avg aggregation correctly returns null for an 
empty stream,
+ *                  with an aggregate combiner.
+ * Success        : Yes
+ */
+
+use test;
+
+
+select element test.strict_stddev((
+    select element x.val
+    from  Test as x
+));

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float/stddev_float.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float/stddev_float.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float/stddev_float.1.ddl.sqlpp
new file mode 100644
index 0000000..21479a2
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float/stddev_float.1.ddl.sqlpp
@@ -0,0 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float/stddev_float.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float/stddev_float.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float/stddev_float.3.query.sqlpp
new file mode 100644
index 0000000..4639508
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float/stddev_float.3.query.sqlpp
@@ -0,0 +1,26 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+select element test.strict_stddev((
+    select element x
+    from  [test.float('1'),test.float('2'),test.float('3')] as x
+));

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float_null/stddev_float_null.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float_null/stddev_float_null.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float_null/stddev_float_null.1.ddl.sqlpp
new file mode 100644
index 0000000..3f2c5bf
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float_null/stddev_float_null.1.ddl.sqlpp
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+
+create type test.NumericType as
+{
+  id : integer,
+  int8Field : tinyint?,
+  int16Field : smallint?,
+  int32Field : integer?,
+  int64Field : bigint?,
+  floatField : float?,
+  doubleField : double?
+};
+
+create external  dataset Numeric(NumericType) using 
localfs((`path`=`asterix_nc1://data/nontagged/numericData.json`),(`format`=`adm`));
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float_null/stddev_float_null.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float_null/stddev_float_null.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float_null/stddev_float_null.3.query.sqlpp
new file mode 100644
index 0000000..0efd9c5
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_float_null/stddev_float_null.3.query.sqlpp
@@ -0,0 +1,26 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+{'stddev':test.strict_stddev((
+    select element x.floatField
+    from  Numeric as x
+))};

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16/stddev_int16.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16/stddev_int16.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16/stddev_int16.1.ddl.sqlpp
new file mode 100644
index 0000000..21479a2
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16/stddev_int16.1.ddl.sqlpp
@@ -0,0 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16/stddev_int16.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16/stddev_int16.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16/stddev_int16.3.query.sqlpp
new file mode 100644
index 0000000..58f3e41
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16/stddev_int16.3.query.sqlpp
@@ -0,0 +1,26 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+select element test.strict_stddev((
+    select element x
+    from  [test.smallint('1'),test.smallint('2'),test.smallint('3')] as x
+));

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16_null/stddev_int16_null.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16_null/stddev_int16_null.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16_null/stddev_int16_null.1.ddl.sqlpp
new file mode 100644
index 0000000..3f2c5bf
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16_null/stddev_int16_null.1.ddl.sqlpp
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+
+create type test.NumericType as
+{
+  id : integer,
+  int8Field : tinyint?,
+  int16Field : smallint?,
+  int32Field : integer?,
+  int64Field : bigint?,
+  floatField : float?,
+  doubleField : double?
+};
+
+create external  dataset Numeric(NumericType) using 
localfs((`path`=`asterix_nc1://data/nontagged/numericData.json`),(`format`=`adm`));
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16_null/stddev_int16_null.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16_null/stddev_int16_null.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16_null/stddev_int16_null.3.query.sqlpp
new file mode 100644
index 0000000..7608be6
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int16_null/stddev_int16_null.3.query.sqlpp
@@ -0,0 +1,26 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+{'stddev':test.strict_stddev((
+    select element x.int16Field
+    from  Numeric as x
+))};

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32/stddev_int32.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32/stddev_int32.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32/stddev_int32.1.ddl.sqlpp
new file mode 100644
index 0000000..21479a2
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32/stddev_int32.1.ddl.sqlpp
@@ -0,0 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32/stddev_int32.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32/stddev_int32.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32/stddev_int32.3.query.sqlpp
new file mode 100644
index 0000000..90dd3b3
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32/stddev_int32.3.query.sqlpp
@@ -0,0 +1,26 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+select element test.strict_stddev((
+    select element x
+    from  [1,2,3] as x
+));

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32_null/stddev_int32_null.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32_null/stddev_int32_null.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32_null/stddev_int32_null.1.ddl.sqlpp
new file mode 100644
index 0000000..3f2c5bf
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32_null/stddev_int32_null.1.ddl.sqlpp
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+
+create type test.NumericType as
+{
+  id : integer,
+  int8Field : tinyint?,
+  int16Field : smallint?,
+  int32Field : integer?,
+  int64Field : bigint?,
+  floatField : float?,
+  doubleField : double?
+};
+
+create external  dataset Numeric(NumericType) using 
localfs((`path`=`asterix_nc1://data/nontagged/numericData.json`),(`format`=`adm`));
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32_null/stddev_int32_null.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32_null/stddev_int32_null.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32_null/stddev_int32_null.3.query.sqlpp
new file mode 100644
index 0000000..42ea3a4
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int32_null/stddev_int32_null.3.query.sqlpp
@@ -0,0 +1,26 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+{'stddev':test.strict_stddev((
+    select element x.int32Field
+    from  Numeric as x
+))};

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64/stddev_int64.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64/stddev_int64.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64/stddev_int64.1.ddl.sqlpp
new file mode 100644
index 0000000..21479a2
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64/stddev_int64.1.ddl.sqlpp
@@ -0,0 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64/stddev_int64.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64/stddev_int64.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64/stddev_int64.3.query.sqlpp
new file mode 100644
index 0000000..3c7269a
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64/stddev_int64.3.query.sqlpp
@@ -0,0 +1,26 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+select element test.strict_stddev((
+    select element x
+    from  [test.bigint('1'),test.bigint('2'),test.bigint('3')] as x
+));

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64_null/stddev_int64_null.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64_null/stddev_int64_null.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64_null/stddev_int64_null.1.ddl.sqlpp
new file mode 100644
index 0000000..3f2c5bf
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64_null/stddev_int64_null.1.ddl.sqlpp
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+
+create type test.NumericType as
+{
+  id : integer,
+  int8Field : tinyint?,
+  int16Field : smallint?,
+  int32Field : integer?,
+  int64Field : bigint?,
+  floatField : float?,
+  doubleField : double?
+};
+
+create external  dataset Numeric(NumericType) using 
localfs((`path`=`asterix_nc1://data/nontagged/numericData.json`),(`format`=`adm`));
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64_null/stddev_int64_null.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64_null/stddev_int64_null.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64_null/stddev_int64_null.3.query.sqlpp
new file mode 100644
index 0000000..1304170
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int64_null/stddev_int64_null.3.query.sqlpp
@@ -0,0 +1,26 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+{'stddev':test.strict_stddev((
+    select element x.int64Field
+    from  Numeric as x
+))};

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8/stddev_int8.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8/stddev_int8.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8/stddev_int8.1.ddl.sqlpp
new file mode 100644
index 0000000..21479a2
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8/stddev_int8.1.ddl.sqlpp
@@ -0,0 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8/stddev_int8.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8/stddev_int8.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8/stddev_int8.3.query.sqlpp
new file mode 100644
index 0000000..310f840
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8/stddev_int8.3.query.sqlpp
@@ -0,0 +1,26 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+select element test.strict_stddev((
+    select element x
+    from  [test.tinyint('1'),test.tinyint('2'),test.tinyint('3')] as x
+));

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8_null/stddev_int8_null.1.ddl.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8_null/stddev_int8_null.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8_null/stddev_int8_null.1.ddl.sqlpp
new file mode 100644
index 0000000..3f2c5bf
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8_null/stddev_int8_null.1.ddl.sqlpp
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+drop  dataverse test if exists;
+create  dataverse test;
+
+use test;
+
+
+create type test.NumericType as
+{
+  id : integer,
+  int8Field : tinyint?,
+  int16Field : smallint?,
+  int32Field : integer?,
+  int64Field : bigint?,
+  floatField : float?,
+  doubleField : double?
+};
+
+create external  dataset Numeric(NumericType) using 
localfs((`path`=`asterix_nc1://data/nontagged/numericData.json`),(`format`=`adm`));
+

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8_null/stddev_int8_null.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8_null/stddev_int8_null.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8_null/stddev_int8_null.3.query.sqlpp
new file mode 100644
index 0000000..25f0fee
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_int8_null/stddev_int8_null.3.query.sqlpp
@@ -0,0 +1,26 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+use test;
+
+
+{'stddev':test.strict_stddev((
+    select element x.int8Field
+    from  Numeric as x
+))};

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_mixed/stddev_mixed.3.query.sqlpp
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_mixed/stddev_mixed.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_mixed/stddev_mixed.3.query.sqlpp
new file mode 100644
index 0000000..d57619d
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/aggregate/stddev_mixed/stddev_mixed.3.query.sqlpp
@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+/*
+* Description  : Run stddev over an ordered list with mixed types
+* Expected Res : Failure
+* Date         : March 5th 2018
+*/
+
+select element strict_stddev((
+    select element x
+    from  [float('2.0'),'hello world',93847382783847382,date('2013-01-01')] as 
x
+));

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null/agg_null.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null/agg_null.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null/agg_null.1.adm
index cd777d3..53910f3 100644
--- 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null/agg_null.1.adm
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null/agg_null.1.adm
@@ -1 +1 @@
-{ "sql-count1": 0, "average1": null, "sql-sum1": null, "sql-min1": null, 
"sql-max1": null, "sql-count2": 0, "average2": null, "sql-sum2": null, 
"sql-min2": null, "sql-max2": null }
+{ "sql-count1": 0, "average1": null, "sql-sum1": null, "sql-min1": null, 
"sql-max1": null, "sql-stddev1": null, "sql-count2": 0, "average2": null, 
"sql-sum2": null, "sql-min2": null, "sql-max2": null, "sql-stddev2": null }

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null_rec/agg_null_rec.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null_rec/agg_null_rec.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null_rec/agg_null_rec.1.adm
index 6216cee..425ca45 100644
--- 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null_rec/agg_null_rec.1.adm
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null_rec/agg_null_rec.1.adm
@@ -1 +1 @@
-{ "sql-count": 2, "average": 26.0, "sql-sum": 52, "sql-min": 21, "sql-max": 31 
}
+{ "sql-count": 2, "average": 26.0, "sql-stddev": 7.0710678118654755, 
"sql-sum": 52, "sql-min": 21, "sql-max": 31 }

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null_rec_1/agg_null_rec.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null_rec_1/agg_null_rec.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null_rec_1/agg_null_rec.1.adm
index f9daeca..4d9b33d 100644
--- 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null_rec_1/agg_null_rec.1.adm
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_null_rec_1/agg_null_rec.1.adm
@@ -1 +1 @@
-{ "sql-count": 3, "average": 5.32, "sql-sum": 15.96, "sql-min": 473847, 
"sql-max": 38473827484738239 }
+{ "sql-count": 3, "average": 5.32, "sql-sum": 15.96, "sql-stddev": 
2.720510431232472E16, "sql-min": 473847, "sql-max": 38473827484738239 }

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_number/agg_number.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_number/agg_number.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_number/agg_number.1.adm
index 74697fa..2ea1357 100644
--- 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_number/agg_number.1.adm
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_number/agg_number.1.adm
@@ -1 +1 @@
-{ "sql-count1": 4, "average1": 2.3461845695961844E16, "sql-count2": 4, 
"average2": 2.3461845695961844E16, "sql-sum1": 9.3847382783847376E16, 
"sql-min1": 1.0, "sql-max1": 9.3847382783847376E16, "sql-sum2": 
9.3847382783847376E16, "sql-min2": 1.0, "sql-max2": 9.3847382783847376E16 }
+{ "sql-count1": 4, "average1": 2.3461845695961844E16, "sql-stddev1": 
4.6923691391923688E16, "sql-count2": 4, "average2": 2.3461845695961844E16, 
"sql-stddev2": 4.6923691391923688E16, "sql-sum1": 9.3847382783847376E16, 
"sql-min1": 1.0, "sql-max1": 9.3847382783847376E16, "sql-sum2": 
9.3847382783847376E16, "sql-min2": 1.0, "sql-max2": 9.3847382783847376E16 }

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_number_rec/agg_number_rec.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_number_rec/agg_number_rec.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_number_rec/agg_number_rec.1.adm
index e936607..fdc01c8 100644
--- 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_number_rec/agg_number_rec.1.adm
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/agg_number_rec/agg_number_rec.1.adm
@@ -1 +1 @@
-{ "sql-count": 3, "average": 1.2824609161579424E16, "sql-sum": 
3.8473827484738272E16, "sql-min": 2.0, "sql-max": 3.847382748473824E16 }
+{ "sql-count": 3, "average": 1.2824609161579424E16, "sql-stddev": 
2.2212874655068836E16, "sql-sum": 3.8473827484738272E16, "sql-min": 2.0, 
"sql-max": 3.847382748473824E16 }

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/avg_int8_null/avg_int8_null.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/avg_int8_null/avg_int8_null.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/avg_int8_null/avg_int8_null.1.adm
index f68aba0..53318b6 100644
--- 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/avg_int8_null/avg_int8_null.1.adm
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/avg_int8_null/avg_int8_null.1.adm
@@ -1 +1 @@
-{ "average": 48.0 }
+{ "average": 18.0 }

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/count_null/count_null.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/count_null/count_null.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/count_null/count_null.1.adm
index ed55061..3c4c7ec 100644
--- 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/count_null/count_null.1.adm
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/count_null/count_null.1.adm
@@ -1 +1 @@
-{ "sql-count": 1 }
+{ "sql-count": 3 }

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/scalar_stddev/scalar_stddev.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/scalar_stddev/scalar_stddev.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/scalar_stddev/scalar_stddev.1.adm
new file mode 100644
index 0000000..325ebd5
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/scalar_stddev/scalar_stddev.1.adm
@@ -0,0 +1,6 @@
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/scalar_stddev_empty/scalar_stddev_empty.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/scalar_stddev_empty/scalar_stddev_empty.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/scalar_stddev_empty/scalar_stddev_empty.1.adm
new file mode 100644
index 0000000..19765bd
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/scalar_stddev_empty/scalar_stddev_empty.1.adm
@@ -0,0 +1 @@
+null

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/scalar_stddev_null/scalar_stddev_null.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/scalar_stddev_null/scalar_stddev_null.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/scalar_stddev_null/scalar_stddev_null.1.adm
new file mode 100644
index 0000000..325ebd5
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/scalar_stddev_null/scalar_stddev_null.1.adm
@@ -0,0 +1,6 @@
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_double/serial_stddev_double.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_double/serial_stddev_double.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_double/serial_stddev_double.1.adm
new file mode 100644
index 0000000..d2bef52
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_double/serial_stddev_double.1.adm
@@ -0,0 +1 @@
+{ "gid": 1, "stddev": 0.8944271909999159 }

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_double_null/serial_stddev_double_null.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_double_null/serial_stddev_double_null.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_double_null/serial_stddev_double_null.1.adm
new file mode 100644
index 0000000..c6fb3a0
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_double_null/serial_stddev_double_null.1.adm
@@ -0,0 +1 @@
+{ "gid": 1, "stddev": 2.2212874654736076E16 }

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_empty/serial_stddev_empty.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_empty/serial_stddev_empty.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_empty/serial_stddev_empty.1.adm
new file mode 100644
index 0000000..e69de29

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_float/serial_stddev_float.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_float/serial_stddev_float.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_float/serial_stddev_float.1.adm
new file mode 100644
index 0000000..d2bef52
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_float/serial_stddev_float.1.adm
@@ -0,0 +1 @@
+{ "gid": 1, "stddev": 0.8944271909999159 }

http://git-wip-us.apache.org/repos/asf/asterixdb/blob/ab4bed0c/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_float_null/serial_stddev_float_null.1.adm
----------------------------------------------------------------------
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_float_null/serial_stddev_float_null.1.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_float_null/serial_stddev_float_null.1.adm
new file mode 100644
index 0000000..81fb89a
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/aggregate-sql/serial_stddev_float_null/serial_stddev_float_null.1.adm
@@ -0,0 +1 @@
+{ "gid": 1, "stddev": 1.0 }

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