diff --git a/core/core-backend/src/main/java/io/dataease/engine/constant/SQLConstants.java b/core/core-backend/src/main/java/io/dataease/engine/constant/SQLConstants.java
index 34b57a47f7..130d0c2e3d 100644
--- a/core/core-backend/src/main/java/io/dataease/engine/constant/SQLConstants.java
+++ b/core/core-backend/src/main/java/io/dataease/engine/constant/SQLConstants.java
@@ -73,7 +73,7 @@ public class SQLConstants {
 
     public static final String DEFAULT_INT_FORMAT = "DECIMAL(18,0)";
 
-    public static final String DEFAULT_FLOAT_FORMAT = "DECIMAL(27,8)";
+    public static final String DEFAULT_FLOAT_FORMAT = "DECIMAL(26,8)";
 
     public static final String WHERE_VALUE_NULL = "(NULL,'')";