[8332] Add non-unique key accid for realmcharacters table for speedup queries by this field. Author: rilex

Just note about related _not_ mangos bug: this table _expected_ to have primary key by pair (`realmid`,`acctid`).
    If used DB not have it for table, then this wrongly setup of DB.

--HG--
branch : trunk

sql/updates/4859_8332_01_realmd_realmcharacters.sql

@@ -0,0 +1,4 @@
+-- ALTER TABLE realmd_db_version CHANGE COLUMN required_7938_01_realmd_account required_8332_01_realmd_realmcharacters bit;
+
+ALTER TABLE realmcharacters
+  ADD KEY (acctid);