diff --git a/java/tsfile/src/main/java/org/apache/tsfile/read/common/block/TsBlock.java b/java/tsfile/src/main/java/org/apache/tsfile/read/common/block/TsBlock.java
index da3e05681..6db6fe881 100644
--- a/java/tsfile/src/main/java/org/apache/tsfile/read/common/block/TsBlock.java
+++ b/java/tsfile/src/main/java/org/apache/tsfile/read/common/block/TsBlock.java
@@ -213,6 +213,17 @@ public Column[] getColumns(int[] columnIndexes) {
     return columns;
   }
 
+  /**
+   * Collected all columns into a column array. Note that the timestamps are at the last column.
+   *
+   * @return column array composed of all columns.
+   */
+  public Column[] getAllColumns() {
+    Column[] columns = Arrays.copyOf(valueColumns, valueColumns.length + 1);
+    columns[valueColumns.length] = timeColumn;
+    return columns;
+  }
+
   public TsBlockSingleColumnIterator getTsBlockSingleColumnIterator() {
     return new TsBlockSingleColumnIterator(0);
   }