Support count(*).

Change-Id: Ie34537f08434fb0eb930725423ae12c0cd8e5983
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1117
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <tillw@apache.org>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q11/q11.1.ddl.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q11/q11.1.ddl.sqlpp
new file mode 100644
index 0000000..e508690
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q11/q11.1.ddl.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.
+ */
+
+drop  dataverse TinySocial if exists;
+create  dataverse TinySocial;
+
+use TinySocial;
+
+create type TinySocial.FacebookUserType as
+ open {
+  id : int64
+}
+
+create  dataset FacebookUsers(FacebookUserType) primary key id;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q11/q11.2.update.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q11/q11.2.update.sqlpp
new file mode 100644
index 0000000..9f4f824
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q11/q11.2.update.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.
+ */
+
+use TinySocial;
+
+
+load  dataset FacebookUsers using localfs ((`path`=`asterix_nc1://data/tinysocial/fbu.adm`),(`format`=`adm`));
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q11/q11.3.query.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q11/q11.3.query.sqlpp
new file mode 100644
index 0000000..d39d81d
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q11/q11.3.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.
+ */
+
+USE TinySocial;
+
+SELECT COUNT(*) count
+FROM FacebookUsers u;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q12_error/q12_error.1.ddl.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q12_error/q12_error.1.ddl.sqlpp
new file mode 100644
index 0000000..e508690
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q12_error/q12_error.1.ddl.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.
+ */
+
+drop  dataverse TinySocial if exists;
+create  dataverse TinySocial;
+
+use TinySocial;
+
+create type TinySocial.FacebookUserType as
+ open {
+  id : int64
+}
+
+create  dataset FacebookUsers(FacebookUserType) primary key id;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q12_error/q12_error.2.update.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q12_error/q12_error.2.update.sqlpp
new file mode 100644
index 0000000..704bda5
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q12_error/q12_error.2.update.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.
+ */
+
+use TinySocial;
+
+load  dataset FacebookUsers using localfs ((`path`=`asterix_nc1://data/tinysocial/fbu.adm`),(`format`=`adm`));
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q12_error/q12_error.3.query.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q12_error/q12_error.3.query.sqlpp
new file mode 100644
index 0000000..e5ac280
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/global-aggregate/q12_error/q12_error.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.
+ */
+
+USE TinySocial;
+
+SELECT AVG(*) avg
+FROM FacebookUsers u;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml b/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
index c5c6a89..608923e 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
@@ -2449,6 +2449,17 @@
         <output-dir compare="Text">q09</output-dir>
       </compilation-unit>
     </test-case>
+    <test-case FilePath="global-aggregate">
+      <compilation-unit name="q11">
+        <output-dir compare="Text">q01</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="global-aggregate">
+      <compilation-unit name="q12_error">
+        <output-dir compare="Text">q01</output-dir>
+        <expected-error>The parameter * can only be used in COUNT().</expected-error>
+      </compilation-unit>
+    </test-case>
   </test-group>
   <test-group name="group-by">
     <test-case FilePath="group-by">
diff --git a/asterixdb/asterix-lang-sqlpp/src/main/javacc/SQLPP.jj b/asterixdb/asterix-lang-sqlpp/src/main/javacc/SQLPP.jj
index 1597156..3d8c4d9 100644
--- a/asterixdb/asterix-lang-sqlpp/src/main/javacc/SQLPP.jj
+++ b/asterixdb/asterix-lang-sqlpp/src/main/javacc/SQLPP.jj
@@ -2270,19 +2270,27 @@
 {
   CallExpr callExpr;
   List<Expression> argList = new ArrayList<Expression>();
-  Expression tmp;
+  Expression tmp = null;
   int arity = 0;
   FunctionName funcName = null;
   String hint = null;
+  boolean star = false;
 }
 {
   funcName = FunctionName()
     {
       hint = funcName.hint;
     }
-  <LEFTPAREN> (tmp = Expression()
+  <LEFTPAREN> ( ( tmp = Expression() | <MUL> { star = true; } )
     {
-      argList.add(tmp);
+      if(star){
+        if(!funcName.function.toLowerCase().equals("count")){
+           throw new ParseException("The parameter * can only be used in COUNT().");
+        }
+        argList.add(new LiteralExpr(new LongIntegerLiteral(1L)));
+      } else {
+         argList.add(tmp);
+      }
       arity ++;
     }
   (<COMMA> tmp = Expression()