Changed sitevariables table to use 'varchar(255)' for
name column instead of 'text'.
Made name column primary key.

sql/database-create.sql

@@ -909,11 +909,11 @@ CREATE TABLE scheduled_reloads (
 --
 
 CREATE TABLE sitevariables (
-  name text NOT NULL,
+  name varchar(255) NOT NULL default '',
   value text,
   defaultvalue text NOT NULL,
   description text,
-  KEY name (name(32))
+  PRIMARY KEY  (name)
 ) TYPE=MyISAM;
 
 --

sql/database-migrate.txt

@@ -166,3 +166,13 @@ last_net_act,last_cpu_act,last_ext_act);
        db synchronization later.)
 
        ALTER TABLE widearea_nodeinfo ADD COLUMN external_node_id tinytext
+
+1.126: Change 'name' column in 'sitevariables' from
+       text to varchar(255). Also make it a PRIMARY KEY,
+       and get rid of old INDEX. 
+       This table has not yet been used.
+       
+       ALTER TABLE sitevariables 
+         CHANGE COLUMN name name varchar(255) PRIMARY KEY;
+
+       ALTER TABLE sitevariables DROP INDEX name;
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