diff --git a/src/main/java/com/loafle/overflow/crawler/result/OFResultSetCol.java b/src/main/java/com/loafle/overflow/crawler/result/OFResultSetCol.java
index 0028bec..5d22826 100644
--- a/src/main/java/com/loafle/overflow/crawler/result/OFResultSetCol.java
+++ b/src/main/java/com/loafle/overflow/crawler/result/OFResultSetCol.java
@@ -21,6 +21,12 @@ public class OFResultSetCol extends OFResultSet{
 
         List<String> meta = this.item.getQuery().getKeys();
 
+        String[] columns = (String[])this.item.getQuery().getQueryInfo().get("arrayColumns");
+
+        for( int indexI = 0 ; indexI < columns.length; ++indexI) {
+            meta.add(columns[indexI]);
+        }
+
         if(this.meta == null) {
             this.meta = new HashMap<>();
         }
@@ -34,7 +40,7 @@ public class OFResultSetCol extends OFResultSet{
     public Map<String, String> parse() {
 
         List<String> metrics = this.item.getMetrics();
-        String[] arrayColumns = (String[])this.item.getQuery().getQueryInfo().get("arrayColumns");
+        List<String> arrayColumns = (List<String>)this.item.getQuery().getQueryInfo().get("arrayColumns");
 //        this.meta
 
         Map<String, String> resultMap = new HashMap<>();
@@ -54,8 +60,8 @@ public class OFResultSetCol extends OFResultSet{
 
                 arrayValue.clear();
 
-                for(int indexL =0; indexL < arrayColumns.length; ++indexL) {
-                    columnIdx = this.meta.get(arrayColumns[indexL]);
+                for(int indexL =0; indexL < arrayColumns.size(); ++indexL) {
+                    columnIdx = this.meta.get(arrayColumns.get(indexL));
 
                     arrayValue.add(row.get(columnIdx));
                 }