打包异常修复

dlink-metadata/dlink-metadata-clickhouse/src/main/java/com/dlink/metadata/query/ClickHouseQuery.java

@@ -74,7 +74,7 @@ public class ClickHouseQuery extends AbstractDBQuery {
     }
 
     @Override
-    public String isNotNull() {
+    public String isNullable() {
         return "NULL";
     }
 }

dlink-metadata/dlink-metadata-postgresql/src/main/java/com/dlink/metadata/query/PostgreSqlQuery.java

@@ -67,7 +67,7 @@ public class PostgreSqlQuery extends AbstractDBQuery {
     }
 
     @Override
-    public String isNotNull() {
+    public String isNullable() {
         return null;
     }
 }