diff --git a/core/core-backend/src/main/java/io/dataease/datasource/provider/CalciteProvider.java b/core/core-backend/src/main/java/io/dataease/datasource/provider/CalciteProvider.java
index 22fb35f531..abf64233be 100644
--- a/core/core-backend/src/main/java/io/dataease/datasource/provider/CalciteProvider.java
+++ b/core/core-backend/src/main/java/io/dataease/datasource/provider/CalciteProvider.java
@@ -1284,6 +1284,8 @@ public class CalciteProvider extends Provider {
                                    END,
                                CASE
                                    WHEN pg_get_expr(ad.adbin, ad.adrelid) LIKE 'nextval%%' THEN 1
+                                   WHEN a.attidentity = 'd' THEN 1
+                                   WHEN a.attidentity = 'a' THEN 1
                                    ELSE 0
                                    END
                         FROM pg_class c