diff --git a/java/tsfile/src/main/java/org/apache/tsfile/read/common/block/column/IntColumn.java b/java/tsfile/src/main/java/org/apache/tsfile/read/common/block/column/IntColumn.java
index fdaa4e7e6..62e397da5 100644
--- a/java/tsfile/src/main/java/org/apache/tsfile/read/common/block/column/IntColumn.java
+++ b/java/tsfile/src/main/java/org/apache/tsfile/read/common/block/column/IntColumn.java
@@ -110,6 +110,10 @@ public TSDataType getDataType() {
     return dataType;
   }
 
+  public void modifyDataType(TSDataType dataType) {
+    this.dataType = dataType;
+  }
+
   @Override
   public ColumnEncoding getEncoding() {
     return ColumnEncoding.INT32_ARRAY;