Murtadha Hubail has submitted this change and it was merged.

Change subject: [NO ISSUE][FUN] Implement object-remove()
......................................................................


[NO ISSUE][FUN] Implement object-remove()

- user model changes: no
- storage format changes: no
- interface changes: no

Details:
- Implement object-remove function that removes a field from
  a given object.
- Add new function to docs.
- Add test case.

Change-Id: I8d4acfa0ef00ccdcb95e189b989a16f06acf0119
Reviewed-on: https://asterix-gerrit.ics.uci.edu/2693
Sonar-Qube: Jenkins <[email protected]>
Tested-by: Jenkins <[email protected]>
Contrib: Jenkins <[email protected]>
Reviewed-by: Murtadha Hubail <[email protected]>
Integration-Tests: Jenkins <[email protected]>
Reviewed-by: Dmitry Lychagin <[email protected]>
---
M 
asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/ObjectsQueries.xml
A 
asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.1.ddl.sqlpp
A 
asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.2.update.sqlpp
A 
asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.3.query.sqlpp
A 
asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.4.ddl.sqlpp
A 
asterixdb/asterix-app/src/test/resources/runtimets/results/objects/object_remove/object_remove.3.adm
M asterixdb/asterix-doc/src/main/markdown/builtins/8_record.md
M 
asterixdb/asterix-om/src/main/java/org/apache/asterix/om/functions/BuiltinFunctions.java
A 
asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/evaluators/functions/records/RecordRemoveDescriptor.java
A 
asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/evaluators/functions/records/RecordRemoveEvaluator.java
M 
asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/functions/FunctionCollection.java
11 files changed, 420 insertions(+), 0 deletions(-)

Approvals:
  Anon. E. Moose #1000171: 
  Jenkins: Verified; No violations found; ; Verified
  Murtadha Hubail: Looks good to me, but someone else must approve
  Dmitry Lychagin: Looks good to me, approved



diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/ObjectsQueries.xml
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/ObjectsQueries.xml
index cb83d4b..54eb49d 100644
--- 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/ObjectsQueries.xml
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/ObjectsQueries.xml
@@ -118,6 +118,11 @@
     </compilation-unit>
   </test-case>
   <test-case FilePath="objects">
+    <compilation-unit name="object_remove">
+      <output-dir compare="Text">object_remove</output-dir>
+    </compilation-unit>
+  </test-case>
+  <test-case FilePath="objects">
     <compilation-unit name="object_pairs">
       <output-dir compare="Text">object_pairs</output-dir>
     </compilation-unit>
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.1.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.1.ddl.sqlpp
new file mode 100644
index 0000000..b3dafba
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.1.ddl.sqlpp
@@ -0,0 +1,49 @@
+/*
+ * 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  : Testing object_remove under different queries.
+ * Expected Res : Success
+ */
+
+drop  dataverse TinySocial if exists;
+create  dataverse TinySocial;
+
+use TinySocial;
+
+create type TinySocial.TwitterUserType as
+{
+  `screen-name` : string,
+  lang : string,
+  friends_count : bigint,
+  statuses_count : bigint
+};
+
+create type TinySocial.TweetMessageType as closed {
+  tweetid : string,
+  user : TwitterUserType,
+  `sender-location` : point?,
+  `send-time` : datetime,
+  `referred-topics` : {{string}},
+  `message-text` : string
+};
+
+create  dataset TwitterUsers(TwitterUserType) primary key `screen-name`;
+
+create  dataset TweetMessages(TweetMessageType) primary key tweetid;
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.2.update.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.2.update.sqlpp
new file mode 100644
index 0000000..2d03f92
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.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.
+ */
+
+/*
+ * Description  : Testing object_remove under different queries.
+ * Expected Res : Success
+ */
+
+use TinySocial;
+
+load  dataset TwitterUsers using localfs 
((`path`=`asterix_nc1://data/tinysocial/twu.adm`),(`format`=`adm`));
+
+load  dataset TweetMessages using localfs 
((`path`=`asterix_nc1://data/tinysocial/twm.adm`),(`format`=`adm`));
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.3.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.3.query.sqlpp
new file mode 100644
index 0000000..f7eabc3
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.3.query.sqlpp
@@ -0,0 +1,51 @@
+/*
+ * 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  : Testing object_remove under different queries.
+ * Expected Res : Success
+ */
+
+use TinySocial;
+
+{
+  "t1": [
+    object_remove(missing, missing) is missing,
+    object_remove(null, missing) is missing,
+    object_remove("{}", missing) is missing,
+    object_remove("{}", null) is null
+  ],
+  "t2": object_remove({"a":1, "b":2}, "a"),
+  "t3": object_remove({"a":1, "b":2}, "b"),
+  "t4": object_remove({"a":1, "b":2}, "c"),
+
+  /* open type */
+  "t5": (
+    select value object_remove(u, "lang")
+    from TwitterUsers as u
+    order by u.screen-name
+  ),
+
+  /* closed type */
+  "t6": (
+    select value object_remove(m, "user")
+    from TweetMessages as m
+    order by m.tweetid
+  )
+};
\ No newline at end of file
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.4.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.4.ddl.sqlpp
new file mode 100644
index 0000000..d6b47a0
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/objects/object_remove/object_remove.4.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.
+ */
+
+/*
+ * Description  : Testing object_remove under different queries.
+ * Expected Res : Success
+ */
+
+drop  dataverse TinySocial;
\ No newline at end of file
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/objects/object_remove/object_remove.3.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/objects/object_remove/object_remove.3.adm
new file mode 100644
index 0000000..61d0506
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/objects/object_remove/object_remove.3.adm
@@ -0,0 +1 @@
+{ "t1": [ true, true, true, true ], "t2": { "b": 2 }, "t3": { "a": 1 }, "t4": 
{ "a": 1, "b": 2 }, "t5": [ { "screen-name": "ChangEwing_573", "friends_count": 
182, "statuses_count": 394, "name": "Chang Ewing", "followers_count": 32136 }, 
{ "screen-name": "ColineGeyer@63", "friends_count": 121, "statuses_count": 362, 
"name": "Coline Geyer", "followers_count": 17159 }, { "screen-name": 
"NathanGiesen@211", "friends_count": 18, "statuses_count": 473, "name": "Nathan 
Giesen", "followers_count": 49416 }, { "screen-name": "NilaMilliron_tw", 
"friends_count": 445, "statuses_count": 164, "name": "Nila Milliron", 
"followers_count": 22649 } ], "t6": [ { "tweetid": "1", "sender-location": 
point("47.44,80.65"), "send-time": datetime("2008-04-26T10:10:00.000Z"), 
"referred-topics": {{ "t-mobile", "customization" }}, "message-text": " love 
t-mobile its customization is good:)" }, { "tweetid": "10", "sender-location": 
point("29.15,76.53"), "send-time": datetime("2008-01-26T10:10:00.000Z"), 
"referred-t
 opics": {{ "verizon", "voice-clarity" }}, "message-text": " hate verizon its 
voice-clarity is OMG:(" }, { "tweetid": "11", "sender-location": 
point("37.59,68.42"), "send-time": datetime("2008-03-09T10:10:00.000Z"), 
"referred-topics": {{ "iphone", "platform" }}, "message-text": " can't stand 
iphone its platform is terrible" }, { "tweetid": "12", "sender-location": 
point("24.82,94.63"), "send-time": datetime("2010-02-13T10:10:00.000Z"), 
"referred-topics": {{ "samsung", "voice-command" }}, "message-text": " like 
samsung the voice-command is amazing:)" }, { "tweetid": "2", "sender-location": 
point("32.84,67.14"), "send-time": datetime("2010-05-13T10:10:00.000Z"), 
"referred-topics": {{ "verizon", "shortcut-menu" }}, "message-text": " like 
verizon its shortcut-menu is awesome:)" }, { "tweetid": "3", "sender-location": 
point("29.72,75.8"), "send-time": datetime("2006-11-04T10:10:00.000Z"), 
"referred-topics": {{ "motorola", "speed" }}, "message-text": " like motorola 
the speed is good:)" },
  { "tweetid": "4", "sender-location": point("39.28,70.48"), "send-time": 
datetime("2011-12-26T10:10:00.000Z"), "referred-topics": {{ "sprint", 
"voice-command" }}, "message-text": " like sprint the voice-command is 
mind-blowing:)" }, { "tweetid": "5", "sender-location": point("40.09,92.69"), 
"send-time": datetime("2006-08-04T10:10:00.000Z"), "referred-topics": {{ 
"motorola", "speed" }}, "message-text": " can't stand motorola its speed is 
terrible:(" }, { "tweetid": "6", "sender-location": point("47.51,83.99"), 
"send-time": datetime("2010-05-07T10:10:00.000Z"), "referred-topics": {{ 
"iphone", "voice-clarity" }}, "message-text": " like iphone the voice-clarity 
is good:)" }, { "tweetid": "7", "sender-location": point("36.21,72.6"), 
"send-time": datetime("2011-08-25T10:10:00.000Z"), "referred-topics": {{ 
"samsung", "platform" }}, "message-text": " like samsung the platform is good" 
}, { "tweetid": "8", "sender-location": point("46.05,93.34"), "send-time": 
datetime("2005-10-14T10:10:00.00
 0Z"), "referred-topics": {{ "t-mobile", "shortcut-menu" }}, "message-text": " 
like t-mobile the shortcut-menu is awesome:)" }, { "tweetid": "9", 
"sender-location": point("36.86,74.62"), "send-time": 
datetime("2012-07-21T10:10:00.000Z"), "referred-topics": {{ "verizon", 
"voicemail-service" }}, "message-text": " love verizon its voicemail-service is 
awesome" } ] }
\ No newline at end of file
diff --git a/asterixdb/asterix-doc/src/main/markdown/builtins/8_record.md 
b/asterixdb/asterix-doc/src/main/markdown/builtins/8_record.md
index fefdb7b..fbee7b4 100644
--- a/asterixdb/asterix-doc/src/main/markdown/builtins/8_record.md
+++ b/asterixdb/asterix-doc/src/main/markdown/builtins/8_record.md
@@ -287,3 +287,35 @@
 
         [ "id", "project", "address" ]
 
+### object_remove ###
+ * Syntax:
+
+        object_remove(input_object, field_name)
+
+ * Returns a new object that has the same fields as the input object except 
the field to be removed
+ * Arguments:
+    * `input_object` : an object value.
+    * `field_name` : a string field name.
+ * Return Value:
+    * A new object that has the same fields as `input_object` except the field 
`field_name`,
+    * `missing` if the argument `input_object` or `field_name` is missing,
+    * `null` if the argument `input_object` is `null` or any other non-object 
value, or the argument `field_name`
+       is `null` or any other non-string value.
+
+ * Example:
+
+        object_remove(
+                       {
+                         "id": 1,
+                         "project": "AsterixDB",
+                         "address": {"city": "Irvine", "state": "CA"}
+                       }
+                       , "address"
+                     );
+
+ * The expected result is:
+
+        {
+          "id": "1",
+          "project": "AsterixDB",
+        }
\ No newline at end of file
diff --git 
a/asterixdb/asterix-om/src/main/java/org/apache/asterix/om/functions/BuiltinFunctions.java
 
b/asterixdb/asterix-om/src/main/java/org/apache/asterix/om/functions/BuiltinFunctions.java
index c40d550..e5d0a11 100644
--- 
a/asterixdb/asterix-om/src/main/java/org/apache/asterix/om/functions/BuiltinFunctions.java
+++ 
b/asterixdb/asterix-om/src/main/java/org/apache/asterix/om/functions/BuiltinFunctions.java
@@ -220,6 +220,8 @@
             new FunctionIdentifier(FunctionConstants.ASTERIX_NS, 
"object-pairs", FunctionIdentifier.VARARGS);
     public static final FunctionIdentifier GEOMETRY_CONSTRUCTOR =
             new FunctionIdentifier(FunctionConstants.ASTERIX_NS, 
"st-geom-from-geojson", FunctionIdentifier.VARARGS);
+    public static final FunctionIdentifier RECORD_REMOVE =
+            new FunctionIdentifier(FunctionConstants.ASTERIX_NS, 
"object-remove", 2);
 
     // numeric
     public static final FunctionIdentifier NUMERIC_UNARY_MINUS =
@@ -1460,6 +1462,7 @@
         addFunction(RECORD_NAMES, 
OrderedListOfAStringTypeComputer.INSTANCE_NULLABLE, true);
         addFunction(RECORD_PAIRS, RecordPairsTypeComputer.INSTANCE, true);
         addFunction(GEOMETRY_CONSTRUCTOR, AGeometryTypeComputer.INSTANCE, 
true);
+        addFunction(RECORD_REMOVE, OpenARecordTypeComputer.INSTANCE, true);
 
         // temporal type accessors
         addFunction(ACCESSOR_TEMPORAL_YEAR, AInt64TypeComputer.INSTANCE, true);
diff --git 
a/asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/evaluators/functions/records/RecordRemoveDescriptor.java
 
b/asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/evaluators/functions/records/RecordRemoveDescriptor.java
new file mode 100644
index 0000000..b57f01e
--- /dev/null
+++ 
b/asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/evaluators/functions/records/RecordRemoveDescriptor.java
@@ -0,0 +1,76 @@
+/*
+ * 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.
+ */
+package org.apache.asterix.runtime.evaluators.functions.records;
+
+import org.apache.asterix.om.functions.BuiltinFunctions;
+import org.apache.asterix.om.functions.IFunctionDescriptor;
+import org.apache.asterix.om.functions.IFunctionDescriptorFactory;
+import org.apache.asterix.om.functions.IFunctionTypeInferer;
+import org.apache.asterix.om.types.ARecordType;
+import 
org.apache.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import org.apache.asterix.runtime.functions.FunctionTypeInferers;
+import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
+import org.apache.hyracks.api.context.IHyracksTaskContext;
+import org.apache.hyracks.api.exceptions.HyracksDataException;
+
+public class RecordRemoveDescriptor extends 
AbstractScalarFunctionDynamicDescriptor {
+
+    public static final IFunctionDescriptorFactory FACTORY = new 
IFunctionDescriptorFactory() {
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new RecordRemoveDescriptor();
+        }
+
+        @Override
+        public IFunctionTypeInferer createFunctionTypeInferer() {
+            return FunctionTypeInferers.RecordAccessorTypeInferer.INSTANCE_LAX;
+        }
+    };
+
+    private static final long serialVersionUID = 1L;
+    private ARecordType recordType;
+
+    @Override
+    public void setImmutableStates(Object... states) {
+        recordType = (ARecordType) states[0];
+    }
+
+    @Override
+    public IScalarEvaluatorFactory createEvaluatorFactory(final 
IScalarEvaluatorFactory[] args) {
+        return new IScalarEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public IScalarEvaluator createScalarEvaluator(IHyracksTaskContext 
ctx) throws HyracksDataException {
+                final IScalarEvaluator[] argEvals = new 
IScalarEvaluator[args.length];
+                for (int i = 0; i < args.length; i++) {
+                    argEvals[i] = args[i].createScalarEvaluator(ctx);
+                }
+                return new RecordRemoveEvaluator(argEvals[0], argEvals[1], 
recordType);
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return BuiltinFunctions.RECORD_REMOVE;
+    }
+}
diff --git 
a/asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/evaluators/functions/records/RecordRemoveEvaluator.java
 
b/asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/evaluators/functions/records/RecordRemoveEvaluator.java
new file mode 100644
index 0000000..d92c9a1
--- /dev/null
+++ 
b/asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/evaluators/functions/records/RecordRemoveEvaluator.java
@@ -0,0 +1,147 @@
+/*
+ * 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.
+ */
+
+package org.apache.asterix.runtime.evaluators.functions.records;
+
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.List;
+
+import org.apache.asterix.builders.RecordBuilder;
+import org.apache.asterix.om.pointables.ARecordVisitablePointable;
+import org.apache.asterix.om.pointables.base.DefaultOpenFieldType;
+import org.apache.asterix.om.pointables.base.IVisitablePointable;
+import org.apache.asterix.om.pointables.cast.ACastVisitor;
+import org.apache.asterix.om.types.ARecordType;
+import org.apache.asterix.om.types.ATypeTag;
+import org.apache.asterix.om.types.IAType;
+import org.apache.asterix.runtime.evaluators.functions.PointableHelper;
+import org.apache.hyracks.algebricks.common.utils.Triple;
+import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
+import org.apache.hyracks.api.dataflow.value.IBinaryComparator;
+import org.apache.hyracks.api.exceptions.HyracksDataException;
+import org.apache.hyracks.data.std.api.IPointable;
+import org.apache.hyracks.data.std.primitive.UTF8StringPointable;
+import org.apache.hyracks.data.std.primitive.VoidPointable;
+import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
+import org.apache.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+class RecordRemoveEvaluator implements IScalarEvaluator {
+
+    private final IPointable inputRecordPointable = new VoidPointable();
+    private final UTF8StringPointable fieldToRemovePointable = new 
UTF8StringPointable();
+    private final IBinaryComparator stringBinaryComparator = 
PointableHelper.createStringBinaryComparator();
+    private final ArrayBackedValueStorage resultStorage = new 
ArrayBackedValueStorage();
+    private final DataOutput resultOutput = resultStorage.getDataOutput();
+    private final RecordBuilder outRecordBuilder = new RecordBuilder();
+    private final IScalarEvaluator eval0;
+    private final IScalarEvaluator eval1;
+    private final ARecordVisitablePointable openRecordPointable;
+    private ARecordVisitablePointable inputRecordVisitable;
+    private boolean requiresCast = false;
+    private ACastVisitor castVisitor;
+    private Triple<IVisitablePointable, IAType, Boolean> castVisitorArg;
+
+    RecordRemoveEvaluator(IScalarEvaluator eval0, IScalarEvaluator eval1, 
ARecordType recordType) {
+        this.eval0 = eval0;
+        this.eval1 = eval1;
+        openRecordPointable = new 
ARecordVisitablePointable(DefaultOpenFieldType.NESTED_OPEN_RECORD_TYPE);
+        if (recordType != null) {
+            inputRecordVisitable = new ARecordVisitablePointable(recordType);
+            if (hasDerivedType(recordType.getFieldTypes())) {
+                requiresCast = true;
+                castVisitor = new ACastVisitor();
+                castVisitorArg =
+                        new Triple<>(openRecordPointable, 
openRecordPointable.getInputRecordType(), Boolean.FALSE);
+            }
+        }
+    }
+
+    @Override
+    public void evaluate(IFrameTupleReference tuple, IPointable result) throws 
HyracksDataException {
+        resultStorage.reset();
+        boolean returnNull = false;
+        eval0.evaluate(tuple, inputRecordPointable);
+        byte[] data = inputRecordPointable.getByteArray();
+        int offset = inputRecordPointable.getStartOffset();
+        byte typeTag = data[offset];
+        if (typeTag != ATypeTag.SERIALIZED_RECORD_TYPE_TAG) {
+            returnNull = true;
+        }
+        eval1.evaluate(tuple, fieldToRemovePointable);
+        data = fieldToRemovePointable.getByteArray();
+        offset = fieldToRemovePointable.getStartOffset();
+        typeTag = data[offset];
+        if (typeTag != ATypeTag.SERIALIZED_STRING_TYPE_TAG) {
+            returnNull = true;
+        }
+        if (returnNull) {
+            PointableHelper.setNull(result);
+            return;
+        }
+        evaluate();
+        result.set(resultStorage);
+    }
+
+    private void evaluate() throws HyracksDataException {
+        resultStorage.reset();
+        try {
+            final ARecordVisitablePointable inputRecord = 
getInputRecordVisitablePointable();
+            buildOutputRecord(inputRecord);
+        } catch (IOException e) {
+            throw HyracksDataException.create(e);
+        }
+    }
+
+    private void buildOutputRecord(ARecordVisitablePointable inputRecord) 
throws HyracksDataException {
+        outRecordBuilder.reset(DefaultOpenFieldType.NESTED_OPEN_RECORD_TYPE);
+        outRecordBuilder.init();
+        final List<IVisitablePointable> fieldNames = 
inputRecord.getFieldNames();
+        final List<IVisitablePointable> fieldValues = 
inputRecord.getFieldValues();
+        for (int i = 0, fieldCount = fieldNames.size(); i < fieldCount; i++) {
+            final IVisitablePointable fieldName = fieldNames.get(i);
+            if (!PointableHelper.isEqual(fieldName, fieldToRemovePointable, 
stringBinaryComparator)) {
+                outRecordBuilder.addField(fieldName, fieldValues.get(i));
+            }
+        }
+        outRecordBuilder.write(resultOutput, true);
+    }
+
+    private ARecordVisitablePointable getInputRecordVisitablePointable() 
throws HyracksDataException {
+        inputRecordVisitable.set(inputRecordPointable);
+        if (requiresCast) {
+            return castToOpenRecord();
+        }
+        return inputRecordVisitable;
+    }
+
+    private boolean hasDerivedType(IAType[] types) {
+        for (IAType type : types) {
+            if (type.getTypeTag().isDerivedType()) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private ARecordVisitablePointable castToOpenRecord() throws 
HyracksDataException {
+        inputRecordVisitable.accept(castVisitor, castVisitorArg);
+        return openRecordPointable;
+    }
+}
diff --git 
a/asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/functions/FunctionCollection.java
 
b/asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/functions/FunctionCollection.java
index 9fecf34..9a6a631 100644
--- 
a/asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/functions/FunctionCollection.java
+++ 
b/asterixdb/asterix-runtime/src/main/java/org/apache/asterix/runtime/functions/FunctionCollection.java
@@ -281,6 +281,7 @@
 import 
org.apache.asterix.runtime.evaluators.functions.records.RecordMergeDescriptor;
 import 
org.apache.asterix.runtime.evaluators.functions.records.RecordNamesDescriptor;
 import 
org.apache.asterix.runtime.evaluators.functions.records.RecordPairsDescriptor;
+import 
org.apache.asterix.runtime.evaluators.functions.records.RecordRemoveDescriptor;
 import 
org.apache.asterix.runtime.evaluators.functions.records.RecordRemoveFieldsDescriptor;
 import 
org.apache.asterix.runtime.evaluators.functions.temporal.AdjustDateTimeForTimeZoneDescriptor;
 import 
org.apache.asterix.runtime.evaluators.functions.temporal.AdjustTimeForTimeZoneDescriptor;
@@ -644,6 +645,7 @@
         fc.addGenerated(RecordRemoveFieldsDescriptor.FACTORY);
         fc.addGenerated(RecordLengthDescriptor.FACTORY);
         fc.addGenerated(RecordNamesDescriptor.FACTORY);
+        fc.addGenerated(RecordRemoveDescriptor.FACTORY);
 
         // Spatial and temporal type accessors
         fc.addGenerated(TemporalYearAccessor.FACTORY);

-- 
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Gerrit-MessageType: merged
Gerrit-Change-Id: I8d4acfa0ef00ccdcb95e189b989a16f06acf0119
Gerrit-PatchSet: 5
Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Owner: Murtadha Hubail <[email protected]>
Gerrit-Reviewer: Anon. E. Moose #1000171
Gerrit-Reviewer: Dmitry Lychagin <[email protected]>
Gerrit-Reviewer: Jenkins <[email protected]>
Gerrit-Reviewer: Murtadha Hubail <[email protected]>
Gerrit-Reviewer: Till Westmann <[email protected]>
Gerrit-Reviewer: abdullah alamoudi <[email protected]>

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