diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/RuleCollections.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/RuleCollections.java
index 76039ab..754067a 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/RuleCollections.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/base/RuleCollections.java
@@ -28,7 +28,6 @@
 import edu.uci.ics.asterix.optimizer.rules.FuzzyEqRule;
 import edu.uci.ics.asterix.optimizer.rules.FuzzyJoinRule;
 import edu.uci.ics.asterix.optimizer.rules.IfElseToSwitchCaseFunctionRule;
-import edu.uci.ics.asterix.optimizer.rules.InlineAssignIntoAggregateRule;
 import edu.uci.ics.asterix.optimizer.rules.IntroduceDynamicTypeCastRule;
 import edu.uci.ics.asterix.optimizer.rules.IntroduceSecondaryIndexInsertDeleteRule;
 import edu.uci.ics.asterix.optimizer.rules.IntroduceStaticTypeCastRule;
@@ -59,6 +58,7 @@
 import edu.uci.ics.hyracks.algebricks.rewriter.rules.ExtractGbyExpressionsRule;
 import edu.uci.ics.hyracks.algebricks.rewriter.rules.FactorRedundantGroupAndDecorVarsRule;
 import edu.uci.ics.hyracks.algebricks.rewriter.rules.InferTypesRule;
+import edu.uci.ics.hyracks.algebricks.rewriter.rules.InlineAssignIntoAggregateRule;
 import edu.uci.ics.hyracks.algebricks.rewriter.rules.InsertOuterJoinRule;
 import edu.uci.ics.hyracks.algebricks.rewriter.rules.InsertProjectBeforeUnionRule;
 import edu.uci.ics.hyracks.algebricks.rewriter.rules.IntroHashPartitionMergeExchange;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/InlineAssignIntoAggregateRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/InlineAssignIntoAggregateRule.java
deleted file mode 100644
index 5f98a1b..0000000
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/InlineAssignIntoAggregateRule.java
+++ /dev/null
@@ -1,123 +0,0 @@
-package edu.uci.ics.asterix.optimizer.rules;
-
-import java.util.List;
-
-import org.apache.commons.lang3.mutable.Mutable;
-
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.IOptimizationContext;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalOperatorTag;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AggregateOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.GroupByOperator;
-import edu.uci.ics.hyracks.algebricks.core.algebra.visitors.AbstractConstVarFunVisitor;
-import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
-
-
-
-public class InlineAssignIntoAggregateRule implements IAlgebraicRewriteRule {
-
-    @Override
-    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) {
-        return false;
-    }
-
-    @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
-        AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
-        if (op.getOperatorTag() != LogicalOperatorTag.GROUP) {
-            return false;
-        }
-        boolean changed = false;
-        GroupByOperator gbyOp = (GroupByOperator) op;
-        for (ILogicalPlan p : gbyOp.getNestedPlans()) {
-            for (Mutable<ILogicalOperator> r : p.getRoots()) {
-                if (inlined(r)) {
-                    changed = true;
-                }
-            }
-        }
-        return changed;
-    }
-
-    private boolean inlined(Mutable<ILogicalOperator> r) throws AlgebricksException {
-        AbstractLogicalOperator op1 = (AbstractLogicalOperator) r.getValue();
-        if (op1.getOperatorTag() != LogicalOperatorTag.AGGREGATE) {
-            return false;
-        }
-        AbstractLogicalOperator op2 = (AbstractLogicalOperator) op1.getInputs().get(0).getValue();
-        if (op2.getOperatorTag() != LogicalOperatorTag.ASSIGN) {
-            return false;
-        }
-        AggregateOperator agg = (AggregateOperator) op1;
-        AssignOperator assign = (AssignOperator) op2;
-        VarExprSubstitution ves = new VarExprSubstitution(assign.getVariables(), assign.getExpressions());
-        for (Mutable<ILogicalExpression> exprRef : agg.getExpressions()) {
-            ILogicalExpression expr = exprRef.getValue();
-            Pair<Boolean, ILogicalExpression> p = expr.accept(ves, null);
-            if (p.first == true) {
-                exprRef.setValue(p.second);
-            }
-            // AbstractLogicalExpression ale = (AbstractLogicalExpression) expr;
-            // ale.accept(ves, null);
-        }
-        List<Mutable<ILogicalOperator>> op1InpList = op1.getInputs();
-        op1InpList.clear();
-        op1InpList.add(op2.getInputs().get(0));
-        return true;
-    }
-
-    private class VarExprSubstitution extends AbstractConstVarFunVisitor<Pair<Boolean, ILogicalExpression>, Void> {
-
-        private List<LogicalVariable> variables;
-        private List<Mutable<ILogicalExpression>> expressions;
-
-        public VarExprSubstitution(List<LogicalVariable> variables, List<Mutable<ILogicalExpression>> expressions) {
-            this.variables = variables;
-            this.expressions = expressions;
-        }
-
-        @Override
-        public Pair<Boolean, ILogicalExpression> visitConstantExpression(ConstantExpression expr, Void arg) {
-            return new Pair<Boolean, ILogicalExpression>(false, expr);
-        }
-
-        @Override
-        public Pair<Boolean, ILogicalExpression> visitFunctionCallExpression(AbstractFunctionCallExpression expr,
-                Void arg) throws AlgebricksException {
-            boolean changed = false;
-            for (Mutable<ILogicalExpression> eRef : expr.getArguments()) {
-                ILogicalExpression e = eRef.getValue();
-                Pair<Boolean, ILogicalExpression> p = e.accept(this, arg);
-                if (p.first) {
-                    eRef.setValue(p.second);
-                    changed = true;
-                }
-            }
-            return new Pair<Boolean, ILogicalExpression>(changed, expr);
-        }
-
-        @Override
-        public Pair<Boolean, ILogicalExpression> visitVariableReferenceExpression(VariableReferenceExpression expr,
-                Void arg) {
-            LogicalVariable v = expr.getVariableReference();
-            int idx = variables.indexOf(v);
-            if (idx < 0) {
-                return new Pair<Boolean, ILogicalExpression>(false, expr);
-            } else {
-                return new Pair<Boolean, ILogicalExpression>(true, expressions.get(idx).getValue());
-            }
-
-        }
-
-    }
-}