On change type de varchar en enum

mysql/migration/1.1.0-2.0.0.sql

@@ -706,8 +706,8 @@ update llx_chargesociales set periode=date_ech where periode is null or periode
 
 -- pour virer les doublons de llx_bank_url (dus à un ancien bug)
 alter ignore table llx_bank_url add unique index(fk_bank,url_id);
-alter table llx_bank_url add type varchar(16);
-
+alter table llx_bank_url add type enum("company","payment","member","donation","charge");
+  
 create table llx_societe_remise
 (
   rowid           integer AUTO_INCREMENT PRIMARY KEY,

mysql/tables/llx_bank_url.sql

@@ -27,5 +27,5 @@ create table llx_bank_url
   url_id          integer,
   url             varchar(255),
   label           varchar(255),
-  type            varchar(16)
+  type            enum("company","payment","member","donation","charge")
 )type=innodb;