Make uid a primary key.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@4246 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Catalog/sql/erp5_mysql/z_create_movement.zsql

@@ -27,7 +27,7 @@ CREATE TABLE `movement` (
   `is_deliverable` bool,
   `is_divergent` bool,
   `variation_text` VARCHAR(255),
-  KEY `uid` (`uid`),
+  PRIMARY KEY `uid` (`uid`),
   KEY `explanation_uid` (`explanation_uid`),
   KEY `source_uid` (`source_uid`),
   KEY `destination_uid` (`destination_uid`),