diff --git a/core/core-backend/src/main/java/io/gisbi/dataset/manage/DatasetDataManage.java b/core/core-backend/src/main/java/io/gisbi/dataset/manage/DatasetDataManage.java
index ff210b2..baa652c 100644
--- a/core/core-backend/src/main/java/io/gisbi/dataset/manage/DatasetDataManage.java
+++ b/core/core-backend/src/main/java/io/gisbi/dataset/manage/DatasetDataManage.java
@@ -1262,7 +1262,7 @@ public Map<String, Object> getFieldsByTableId(Long datasource_id, String tablena
         String field = row[0];
         String type = row[1];
         int size = 0 ;
-        if(!"longtext".equals(type)){
+        if(!"longtext".equals(type)&&!"longblob".equals(type)){
             size = ObjectUtils.isNotEmpty(row[2])?Integer.parseInt(row[2]):0;
         }