diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.01.ddl.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.01.ddl.sqlpp
new file mode 100644
index 0000000..e4727dc
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.01.ddl.sqlpp
@@ -0,0 +1,48 @@
+/*
+ * 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  : Test warnings for cardinality hints
+* Expected Res : Warning, ignore hint
+* Date         : 03/09/2023
+*/
+
+DROP dataverse tpch IF EXISTS;
+CREATE  dataverse tpch;
+
+USE tpch;
+
+
+CREATE TYPE OrderType AS {
+  o_orderkey : integer
+};
+
+CREATE TYPE CustomerType AS {
+  c_custkey : integer
+};
+
+CREATE TYPE NationType AS {
+  n_nationkey : integer,
+  n_name : string
+};
+
+CREATE DATASET orders(OrderType) PRIMARY KEY o_orderkey;
+
+CREATE DATASET customer(CustomerType) PRIMARY KEY c_custkey;
+
+CREATE DATASET nation(NationType) PRIMARY KEY n_nationkey;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.02.query.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.02.query.sqlpp
new file mode 100644
index 0000000..0ed9c00
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.02.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  : Test warnings for cardinality hints
+* Expected Res : Warning, ignore hint
+* Date         : 03/09/2023
+*/
+// requesttype=application/json
+// param max-warnings:json=10
+
+use tpch;
+
+SELECT count(*)
+FROM customer c, nation n
+WHERE c.c_nationkey = n.n_nationkey and n.n_name /*+ selectivity */ = 'UNITED STATES';
+
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.03.query.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.03.query.sqlpp
new file mode 100644
index 0000000..f3838eb9
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.03.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  : Test warnings for cardinality hints
+* Expected Res : Warning, ignore hint
+* Date         : 03/09/2023
+*/
+// requesttype=application/json
+// param max-warnings:json=10
+
+use tpch;
+
+SELECT count(*)
+FROM customer c, nation n
+WHERE c.c_nationkey = n.n_nationkey and n.n_name /*+ selectivity 1 */ = 'UNITED STATES';
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.04.query.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.04.query.sqlpp
new file mode 100644
index 0000000..b40ff68
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.04.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  : Test warnings for cardinality hints
+* Expected Res : No warning, honor hint
+* Date         : 03/09/2023
+*/
+// requesttype=application/json
+// param max-warnings:json=10
+
+use tpch;
+
+SELECT count(*)
+FROM customer c, nation n
+WHERE c.c_nationkey = n.n_nationkey and n.n_name /*+ selectivity 0.1 */ = 'UNITED STATES';
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.05.query.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.05.query.sqlpp
new file mode 100644
index 0000000..0d98c86
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.05.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  : Test warnings for cardinality hints
+* Expected Res : Warning, ignore hint
+* Date         : 03/09/2023
+*/
+// requesttype=application/json
+// param max-warnings:json=10
+
+use tpch;
+
+SELECT count(*)
+FROM customer c, nation n
+WHERE c.c_nationkey /*+ productivity */ = n.n_nationkey;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.06.query.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.06.query.sqlpp
new file mode 100644
index 0000000..21d4735
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.06.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  : Test warnings for enhanced hash join hint
+* Expected Res : Warning, ignore hint
+* Date         : 03/09/2023
+*/
+// requesttype=application/json
+// param max-warnings:json=10
+
+use tpch;
+
+SELECT count(*)
+FROM customer c, nation n
+WHERE c.c_nationkey /*+ productivity 100.0 */ = n.n_nationkey;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.07.query.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.07.query.sqlpp
new file mode 100644
index 0000000..626490a
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.07.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  : Test warnings for cardinality hints
+* Expected Res : Warning, ignore hint
+* Date         : 03/09/2023
+*/
+// requesttype=application/json
+// param max-warnings:json=10
+
+use tpch;
+
+SELECT count(*)
+FROM customer c, nation n
+WHERE c.c_nationkey /*+ productivity n */ = n.n_nationkey;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.08.query.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.08.query.sqlpp
new file mode 100644
index 0000000..6a6a440
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.08.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  : Test warnings for cardinality hints
+* Expected Res : Warning, ignore hint
+* Date         : 03/09/2023
+*/
+// requesttype=application/json
+// param max-warnings:json=10
+
+use tpch;
+
+SELECT count(*)
+FROM customer c, nation n
+WHERE c.c_nationkey /*+ productivity n 100 */ = n.n_nationkey;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.09.query.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.09.query.sqlpp
new file mode 100644
index 0000000..725b0ea
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/cardinality-hint-warning/cardinality-hint-warning.09.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  : Test warnings for cardinality hints
+* Expected Res : No warning, honor hint
+* Date         : 03/09/2023
+*/
+// requesttype=application/json
+// param max-warnings:json=10
+
+use tpch;
+
+SELECT count(*)
+FROM customer c, nation n
+WHERE c.c_nationkey /*+ productivity n 100.0 */ = n.n_nationkey;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/hashjoin-hint-warning/hashjoin-hint-warning.01.ddl.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/hashjoin-hint-warning/hashjoin-hint-warning.01.ddl.sqlpp
index 14ff86d..b64fa28 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/hashjoin-hint-warning/hashjoin-hint-warning.01.ddl.sqlpp
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/hashjoin-hint-warning/hashjoin-hint-warning.01.ddl.sqlpp
@@ -37,7 +37,8 @@
 };
 
 CREATE TYPE NationType AS {
-  n_nationkey : integer
+  n_nationkey : integer,
+  n_name : string
 };
 
 CREATE DATASET orders(OrderType) PRIMARY KEY o_orderkey;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/hashjoin-hint-warning/hashjoin-hint-warning.12.query.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/hashjoin-hint-warning/hashjoin-hint-warning.12.query.sqlpp
new file mode 100644
index 0000000..f6aebcd
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/warnings/hashjoin-hint-warning/hashjoin-hint-warning.12.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  : Test warnings for enhanced hash join hint
+* Expected Res : No warning, honor hint
+* Date         : 11/20/2022
+*/
+// requesttype=application/json
+// param max-warnings:json=10
+
+use tpch;
+set `compiler.cbo` "true";
+SELECT COUNT(DISTINCT n.n_name) FROM customer c JOIN nation n
+ON c.c_nationkey /*+ hashjoin build(n) */ = n.n_nationkey;
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.02.adm b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.02.adm
new file mode 100644
index 0000000..3ff59f6
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.02.adm
@@ -0,0 +1 @@
+{ "$1": 0 }
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.03.adm b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.03.adm
new file mode 100644
index 0000000..3ff59f6
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.03.adm
@@ -0,0 +1 @@
+{ "$1": 0 }
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.04.adm b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.04.adm
new file mode 100644
index 0000000..3ff59f6
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.04.adm
@@ -0,0 +1 @@
+{ "$1": 0 }
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.05.adm b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.05.adm
new file mode 100644
index 0000000..3ff59f6
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.05.adm
@@ -0,0 +1 @@
+{ "$1": 0 }
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.06.adm b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.06.adm
new file mode 100644
index 0000000..3ff59f6
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.06.adm
@@ -0,0 +1 @@
+{ "$1": 0 }
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.07.adm b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.07.adm
new file mode 100644
index 0000000..3ff59f6
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.07.adm
@@ -0,0 +1 @@
+{ "$1": 0 }
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.08.adm b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.08.adm
new file mode 100644
index 0000000..3ff59f6
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.08.adm
@@ -0,0 +1 @@
+{ "$1": 0 }
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.09.adm b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.09.adm
new file mode 100644
index 0000000..3ff59f6
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/cardinality-hint-warning/cardinality-hint-warning.09.adm
@@ -0,0 +1 @@
+{ "$1": 0 }
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/hashjoin-hint-warning/hashjoin-hint-warning.12.adm b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/hashjoin-hint-warning/hashjoin-hint-warning.12.adm
new file mode 100644
index 0000000..267992b
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/hashjoin-hint-warning/hashjoin-hint-warning.12.adm
@@ -0,0 +1 @@
+{ "$1": 0 }
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 31183f3..f9e2e70 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
@@ -15461,6 +15461,17 @@
       </compilation-unit>
     </test-case>
     <test-case FilePath="warnings" check-warnings="true">
+      <compilation-unit name="cardinality-hint-warning">
+        <output-dir compare="Text">cardinality-hint-warning</output-dir>
+        <expected-warn><![CDATA[ASX1132: Invalid specification for hint selectivity. Expected selectivity value (in line 31, at column 52)]]></expected-warn>
+        <expected-warn><![CDATA[ASX1132: Invalid specification for hint selectivity. Selectivity value has to be in decimal format (in line 31, at column 52)]]></expected-warn>
+        <expected-warn><![CDATA[ASX1132: Invalid specification for hint productivity. Expected productivity collection name and value (in line 31, at column 23)]]></expected-warn>
+        <expected-warn><![CDATA[ASX1132: Invalid specification for hint productivity. Invalid format for productivity values (in line 31, at column 23)]]></expected-warn>
+        <expected-warn><![CDATA[ASX1132: Invalid specification for hint productivity. Invalid format for productivity values (in line 31, at column 23)]]></expected-warn>
+        <expected-warn><![CDATA[ASX1132: Invalid specification for hint productivity. Invalid format for productivity values (in line 31, at column 23)]]></expected-warn>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="warnings" check-warnings="true">
       <compilation-unit name="inapplicable-hint-warning">
         <output-dir compare="Text">inapplicable-hint-warning</output-dir>
         <expected-warn>HYR10006: Could not apply Group By hint: hash</expected-warn>
diff --git a/asterixdb/asterix-lang-sqlpp/src/main/javacc/SQLPP.jj b/asterixdb/asterix-lang-sqlpp/src/main/javacc/SQLPP.jj
index 98fc560..875de45 100644
--- a/asterixdb/asterix-lang-sqlpp/src/main/javacc/SQLPP.jj
+++ b/asterixdb/asterix-lang-sqlpp/src/main/javacc/SQLPP.jj
@@ -689,39 +689,53 @@
       Pattern lessThanOnePat = Pattern.compile("0\\.\\d+");
       try {
         switch (hintToken.hint) {
-          case SINGLE_DATASET_PREDICATE_SELECTIVITY_HINT:
-            if (hintToken.hintParams == null) {
-                throw new SqlppParseException(getSourceLocation(hintToken), "Expected selectivity value");
-            }
-            else {
-                selectivity = 1.0; // uninitialized
-                Matcher mat = lessThanOnePat.matcher(hintToken.hintParams);
-                if (mat.find()) {
-                    selectivity = Double.parseDouble (mat.group());
-                }
-                return new PredicateCardinalityAnnotation(selectivity);
-            }
-          case JOIN_PREDICATE_PRODUCTIVITY_HINT:
-            if (hintToken.hintParams == null) {
-                throw new SqlppParseException(getSourceLocation(hintToken), "Expected productivity value");
-            }
-            else {
-                productivity = 1.0; // uninitialized
-                String leftSideDataSet = null;
-                Matcher StringNum = stringNumber.matcher(hintToken.hintParams);
-                if (StringNum.find()) {
-                    String matchedGroup = StringNum.group();
-                    Pattern var = Pattern.compile("[a-zA-Z]\\w*"); // any word character [a-zA-Z_0-9]
-                    Matcher matVar = var.matcher(matchedGroup);
-                    if (matVar.find())
-                        leftSideDataSet = matVar.group();
-                    Matcher numMat = number.matcher(matchedGroup);
-                    if (numMat.find())
-                        productivity = Double.parseDouble (numMat.group());
-                }
-                // attach hint to global scope
-                return new JoinProductivityAnnotation (productivity, leftSideDataSet);
-            }
+           case SINGLE_DATASET_PREDICATE_SELECTIVITY_HINT:
+             if (hintToken.hintParams == null) {
+               throw new SqlppParseException(getSourceLocation(hintToken), "Expected selectivity value");
+             }
+             else {
+               selectivity = 1.0; // uninitialized
+               Matcher mat = lessThanOnePat.matcher(hintToken.hintParams);
+               if (mat.find()) {
+                 selectivity = Double.parseDouble (mat.group());
+               }
+               else {
+                 throw new SqlppParseException(getSourceLocation(hintToken), "Selectivity value has to be in decimal format");
+               }
+               return new PredicateCardinalityAnnotation(selectivity);
+             }
+           case JOIN_PREDICATE_PRODUCTIVITY_HINT:
+             if (hintToken.hintParams == null) {
+               throw new SqlppParseException(getSourceLocation(hintToken), "Expected productivity collection name and value");
+             }
+             else {
+               productivity = 1.0; // uninitialized
+               String leftSideDataSet = null;
+               Matcher StringNum = stringNumber.matcher(hintToken.hintParams);
+               if (StringNum.find()) {
+                 String matchedGroup = StringNum.group();
+                 Pattern var = Pattern.compile("[a-zA-Z]\\w*"); // any word character [a-zA-Z_0-9]
+                 Matcher matVar = var.matcher(matchedGroup);
+                 if (matVar.find()) {
+                   leftSideDataSet = matVar.group();
+                 }
+                 else {
+                    throw new SqlppParseException(getSourceLocation(hintToken), "Expected productivity collection name");
+                 }
+                 Matcher numMat = number.matcher(matchedGroup);
+                 if (numMat.find()) {
+                   productivity = Double.parseDouble (numMat.group());
+                 }
+                 else {
+                   throw new SqlppParseException(getSourceLocation(hintToken), "Productivity value has to be in decimal format");
+                 }
+               }
+               else {
+                 throw new SqlppParseException(getSourceLocation(hintToken), "Invalid format for productivity values");
+               }
+               // attach hint to global scope
+               return new JoinProductivityAnnotation (productivity, leftSideDataSet);
+             }
           case HASH_BROADCAST_JOIN_HINT:
             if (hintToken.hintParams == null) {
               return new BroadcastExpressionAnnotation(BroadcastExpressionAnnotation.BroadcastSide.RIGHT);
diff --git a/hyracks-fullstack/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/operators/logical/visitors/VariableUtilities.java b/hyracks-fullstack/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/operators/logical/visitors/VariableUtilities.java
index 69db58d..623e15a 100644
--- a/hyracks-fullstack/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/operators/logical/visitors/VariableUtilities.java
+++ b/hyracks-fullstack/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/operators/logical/visitors/VariableUtilities.java
@@ -33,6 +33,7 @@
 import org.apache.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import org.apache.hyracks.algebricks.core.algebra.base.ILogicalOperator;
 import org.apache.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
+import org.apache.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
 import org.apache.hyracks.algebricks.core.algebra.base.LogicalVariable;
 import org.apache.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
 import org.apache.hyracks.algebricks.core.algebra.typing.ITypingContext;
@@ -102,6 +103,17 @@
         }
     }
 
+    public static void getLiveVariablesInDescendantDataScans(ILogicalOperator op, Collection<LogicalVariable> vars)
+            throws AlgebricksException {
+        // DFS traversal
+        if (op.getOperatorTag() == LogicalOperatorTag.DATASOURCESCAN) {
+            VariableUtilities.getLiveVariables(op, vars);
+        }
+        for (Mutable<ILogicalOperator> c : op.getInputs()) {
+            getLiveVariablesInDescendantDataScans(c.getValue(), vars);
+        }
+    }
+
     public static void getProducedVariablesInDescendantsAndSelf(ILogicalOperator op, Collection<LogicalVariable> vars)
             throws AlgebricksException {
         // DFS traversal
diff --git a/hyracks-fullstack/algebricks/algebricks-rewriter/src/main/java/org/apache/hyracks/algebricks/rewriter/util/JoinUtils.java b/hyracks-fullstack/algebricks/algebricks-rewriter/src/main/java/org/apache/hyracks/algebricks/rewriter/util/JoinUtils.java
index fa0549f..49ff483 100644
--- a/hyracks-fullstack/algebricks/algebricks-rewriter/src/main/java/org/apache/hyracks/algebricks/rewriter/util/JoinUtils.java
+++ b/hyracks-fullstack/algebricks/algebricks-rewriter/src/main/java/org/apache/hyracks/algebricks/rewriter/util/JoinUtils.java
@@ -40,6 +40,7 @@
 import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import org.apache.hyracks.algebricks.core.algebra.operators.logical.AbstractBinaryJoinOperator;
 import org.apache.hyracks.algebricks.core.algebra.operators.logical.visitors.LogicalPropertiesVisitor;
+import org.apache.hyracks.algebricks.core.algebra.operators.logical.visitors.VariableUtilities;
 import org.apache.hyracks.algebricks.core.algebra.operators.physical.AbstractJoinPOperator.JoinPartitioningType;
 import org.apache.hyracks.algebricks.core.algebra.operators.physical.HybridHashJoinPOperator;
 import org.apache.hyracks.algebricks.core.algebra.operators.physical.InMemoryHashJoinPOperator;
@@ -57,7 +58,7 @@
     }
 
     public static void setJoinAlgorithmAndExchangeAlgo(AbstractBinaryJoinOperator op, boolean topLevelOp,
-            IOptimizationContext context) {
+            IOptimizationContext context) throws AlgebricksException {
         if (!topLevelOp) {
             throw new IllegalStateException("Micro operator not implemented for: " + op.getOperatorTag());
         }
@@ -67,9 +68,13 @@
         List<LogicalVariable> varsRight = op.getInputs().get(1).getValue().getSchema();
         ILogicalExpression conditionExpr = op.getCondition().getValue();
         if (isHashJoinCondition(conditionExpr, varsLeft, varsRight, sideLeft, sideRight)) {
-            BroadcastSide broadcastSide = getBroadcastJoinSide(conditionExpr, varsLeft, varsRight, context);
+            List<LogicalVariable> scanVarsLeft = new LinkedList<>();
+            List<LogicalVariable> scanVarsRight = new LinkedList<>();
+            VariableUtilities.getLiveVariablesInDescendantDataScans(op.getInputs().get(0).getValue(), scanVarsLeft);
+            VariableUtilities.getLiveVariablesInDescendantDataScans(op.getInputs().get(1).getValue(), scanVarsRight);
+            BroadcastSide broadcastSide = getBroadcastJoinSide(conditionExpr, scanVarsLeft, scanVarsRight, context);
             if (broadcastSide == null) {
-                BuildSide buildSide = getHashJoinBuildSide(conditionExpr, varsLeft, varsRight, context);
+                BuildSide buildSide = getHashJoinBuildSide(conditionExpr, scanVarsLeft, scanVarsRight, context);
                 if (buildSide == null) {
                     setHashJoinOp(op, JoinPartitioningType.PAIRWISE, sideLeft, sideRight, context);
                 } else {