diff --git a/src/graph/validator/LookupValidator.cpp b/src/graph/validator/LookupValidator.cpp
index 7da955281b5..5395ebaed6f 100644
--- a/src/graph/validator/LookupValidator.cpp
+++ b/src/graph/validator/LookupValidator.cpp
@@ -41,7 +41,7 @@ Status LookupValidator::validateImpl() {
   lookupCtx_ = getContext<LookupContext>();
 
   NG_RETURN_IF_ERROR(validateFrom());
-  NG_RETURN_IF_ERROR(validateFilter());
+  NG_RETURN_IF_ERROR(validateWhere());
   NG_RETURN_IF_ERROR(validateYield());
   return Status::OK();
 }
@@ -57,19 +57,6 @@ Status LookupValidator::validateFrom() {
   return Status::OK();
 }
 
-Status LookupValidator::extractSchemaProp() {
-  shared_ptr<const NebulaSchemaProvider> schema;
-  NG_RETURN_IF_ERROR(getSchemaProvider(&schema));
-  for (std::size_t i = 0; i < schema->getNumFields(); ++i) {
-    const auto& propName = schema->getFieldName(i);
-    auto iter = std::find(idxReturnCols_.begin(), idxReturnCols_.end(), propName);
-    if (iter == idxReturnCols_.end()) {
-      idxReturnCols_.emplace_back(propName);
-    }
-  }
-  return Status::OK();
-}
-
 void LookupValidator::extractExprProps() {
   auto addProps = [this](const std::set<folly::StringPiece>& propNames) {
     for (const auto& propName : propNames) {
@@ -108,9 +95,6 @@ Status LookupValidator::validateYieldEdge() {
                                 {Expression::Kind::kAggregate, Expression::Kind::kVertex})) {
       return Status::SemanticError("illegal yield clauses `%s'", col->toString().c_str());
     }
-    if (ExpressionUtils::hasAny(col->expr(), {Expression::Kind::kEdge})) {
-      NG_RETURN_IF_ERROR(extractSchemaProp());
-    }
     if (col->expr()->kind() == Expression::Kind::kLabelAttribute) {
       const auto& schemaName = static_cast<LabelAttributeExpression*>(col->expr())->left()->name();
       if (schemaName != sentence()->from()) {
@@ -138,9 +122,6 @@ Status LookupValidator::validateYieldTag() {
                                 {Expression::Kind::kAggregate, Expression::Kind::kEdge})) {
       return Status::SemanticError("illegal yield clauses `%s'", col->toString().c_str());
     }
-    if (ExpressionUtils::hasAny(col->expr(), {Expression::Kind::kVertex})) {
-      NG_RETURN_IF_ERROR(extractSchemaProp());
-    }
     if (col->expr()->kind() == Expression::Kind::kLabelAttribute) {
       const auto& schemaName = static_cast<LabelAttributeExpression*>(col->expr())->left()->name();
       if (schemaName != sentence()->from()) {
@@ -188,7 +169,7 @@ Status LookupValidator::validateYield() {
   return Status::OK();
 }
 
-Status LookupValidator::validateFilter() {
+Status LookupValidator::validateWhere() {
   auto whereClause = sentence()->whereClause();
   if (whereClause == nullptr) {
     return Status::OK();
diff --git a/src/graph/validator/LookupValidator.h b/src/graph/validator/LookupValidator.h
index 56236bdd92c..9889d99971e 100644
--- a/src/graph/validator/LookupValidator.h
+++ b/src/graph/validator/LookupValidator.h
@@ -29,7 +29,7 @@ class LookupValidator final : public Validator {
 
   Status validateFrom();
   Status validateYield();
-  Status validateFilter();
+  Status validateWhere();
   Status validateYieldTag();
   Status validateYieldEdge();
 
@@ -53,7 +53,6 @@ class LookupValidator final : public Validator {
   Status getSchemaProvider(std::shared_ptr<const meta::NebulaSchemaProvider>* provider) const;
   StatusOr<Expression*> genTsFilter(Expression* filter);
   StatusOr<Expression*> handleLogicalExprOperands(LogicalExpression* lExpr);
-  Status extractSchemaProp();
   void extractExprProps();
 
   std::unique_ptr<LookupContext> lookupCtx_;
diff --git a/src/graph/validator/YieldValidator.cpp b/src/graph/validator/YieldValidator.cpp
index e622eda743d..901774e8697 100644
--- a/src/graph/validator/YieldValidator.cpp
+++ b/src/graph/validator/YieldValidator.cpp
@@ -65,7 +65,7 @@ Status YieldValidator::makeOutputColumn(YieldColumn *column) {
   DCHECK(colExpr != nullptr);
 
   auto expr = colExpr->clone();
-  NG_RETURN_IF_ERROR(deduceProps(expr, exprProps_, {}, {}));
+  NG_RETURN_IF_ERROR(deduceProps(expr, exprProps_));
 
   auto status = deduceExprType(expr);
   NG_RETURN_IF_ERROR(status);