Bug #1805 - Migration scripts to 1.8.8: Fixing the encoding conversion failure due to some too long indexes. Adding again in the current migration statements for encoding conversion to UTF-8 for some tables.

main/install/migrate-db-1.8.6.2-1.8.7-pre.sql

@@ -14,6 +14,9 @@
 
 -- xxMAINxx
 
+ALTER TABLE settings_current DROP INDEX unique_setting;
+ALTER TABLE settings_options DROP INDEX unique_setting_option;
+
 ALTER TABLE user_friend RENAME TO user_rel_user;
 ALTER TABLE session_rel_user ADD COLUMN relation_type int NOT NULL default 0;
 ALTER TABLE course_rel_user  ADD COLUMN relation_type int NOT NULL default 0;

main/install/migrate-db-1.8.7-1.8.8-pre.sql

@@ -13,6 +13,12 @@
 -- This first part is for the main database
 
 -- xxMAINxx
+ALTER TABLE settings_current DROP INDEX unique_setting;
+ALTER TABLE settings_options DROP INDEX unique_setting_option;
+ALTER TABLE settings_current ADD UNIQUE unique_setting (variable(110), subkey(110), category(110), access_url);
+ALTER TABLE settings_options ADD UNIQUE unique_setting_option (variable(165), value(165));
+ALTER TABLE settings_current CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
+ALTER TABLE settings_options CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
 UPDATE settings_current SET variable='chamilo_database_version' WHERE variable='dokeos_database_version';
 UPDATE settings_current SET selected_value = '1.8.8.12378' WHERE variable = 'chamilo_database_version';
 
@@ -21,6 +27,7 @@ UPDATE settings_current SET selected_value = '1.8.8.12378' WHERE variable = 'cha
 -- xxUSERxx
 
 -- xxCOURSExx
+ALTER TABLE course_setting CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
 ALTER TABLE forum_forum ADD start_time DATETIME NOT NULL DEFAULT '0000-00-00 00:00:00';
 ALTER TABLE forum_forum ADD end_time DATETIME NOT NULL DEFAULT '0000-00-00 00:00:00';
 ALTER TABLE wiki_mailcue ADD session_id smallint DEFAULT 0;