diff --git a/db/update20.8.sql b/db/update20.8.sql
index 1d4bbc151f..e9edfaae1b 100644
--- a/db/update20.8.sql
+++ b/db/update20.8.sql
@@ -58,5 +58,3 @@ UPDATE `zt_grouppriv` SET `method` = 'quick' WHERE `module` = 'doc' AND `method`
 
 ALTER TABLE `zt_history` ADD `oldValue` text NULL AFTER `old`;
 ALTER TABLE `zt_history` ADD `newValue` text NULL AFTER `new`;
-
-ALTER TABLE `zt_dataview` ADD `driver` enum('mysql', 'duckdb') not NULL default 'mysql' AFTER `code`;