diff --git a/interactive_engine/compiler/src/main/java/com/alibaba/graphscope/common/ir/tools/GraphBuilder.java b/interactive_engine/compiler/src/main/java/com/alibaba/graphscope/common/ir/tools/GraphBuilder.java
index 2fccfe1da367..6f3d9b3e2f98 100644
--- a/interactive_engine/compiler/src/main/java/com/alibaba/graphscope/common/ir/tools/GraphBuilder.java
+++ b/interactive_engine/compiler/src/main/java/com/alibaba/graphscope/common/ir/tools/GraphBuilder.java
@@ -16,6 +16,8 @@
 
 package com.alibaba.graphscope.common.ir.tools;
 
+import static java.util.Objects.requireNonNull;
+
 import com.alibaba.graphscope.common.ir.meta.schema.GraphOptSchema;
 import com.alibaba.graphscope.common.ir.meta.schema.IrGraphSchema;
 import com.alibaba.graphscope.common.ir.rel.GraphLogicalAggregate;
@@ -30,8 +32,8 @@
 import com.alibaba.graphscope.common.ir.rel.type.group.GraphGroupKeys;
 import com.alibaba.graphscope.common.ir.rel.type.order.GraphFieldCollation;
 import com.alibaba.graphscope.common.ir.rel.type.order.GraphRelCollations;
-import com.alibaba.graphscope.common.ir.rex.RexCallBinding;
 import com.alibaba.graphscope.common.ir.rex.*;
+import com.alibaba.graphscope.common.ir.rex.RexCallBinding;
 import com.alibaba.graphscope.common.ir.tools.config.*;
 import com.alibaba.graphscope.common.ir.type.GraphNameOrId;
 import com.alibaba.graphscope.common.ir.type.GraphPathType;
@@ -42,6 +44,7 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
+
 import org.apache.calcite.plan.*;
 import org.apache.calcite.rel.AbstractRelNode;
 import org.apache.calcite.rel.RelFieldCollation;
@@ -65,8 +68,6 @@
 import java.util.*;
 import java.util.stream.Collectors;
 
-import static java.util.Objects.requireNonNull;
-
 /**
  * Integrate interfaces to build algebra structures,
  * including {@link RexNode} for expressions and {@link RelNode} for operators