[svn r21770] Added SQL migration file for 1.8.6.1 (improvements for UTF-8 and other minor improvements)

main/install/migrate-db-1.8.6-1.8.6.1-pre.sql

@@ -0,0 +1,20 @@
+-- This script updates the databases structure before migrating the data from
+-- version 1.8.6 to version 1.8.6.1
+-- it is intended as a standalone script, however, because of the multiple
+-- databases related difficulties, it should be parsed by a PHP script in
+-- order to connect to and update the right databases.
+-- There is one line per query, allowing the PHP function file() to read
+-- all lines separately into an array. The xxMAINxx-type markers are there
+-- to tell the PHP script which database we're talking about.
+-- By always using the keyword "TABLE" in the queries, we should be able
+-- to retrieve and modify the table name from the PHP script if needed, which
+-- will allow us to deal with the unique-database-type installations
+--
+-- This first part is for the main database
+-- xxMAINxx
+
+-- xxSTATSxx
+
+-- xxUSERxx
+
+-- xxCOURSExx