*/
define( 'DB_SLAVE', -1 ); # Read from the slave (or only server)
define( 'DB_MASTER', -2 ); # Write to master (or only server)
-define( 'DB_LAST', -3 ); # Whatever database was used last
/**@}*/
# Obsolete aliases
define( 'DB_READ', -1 );
define( 'DB_WRITE', -2 );
+define( 'DB_LAST', -3 ); # deprecated since 2008, usage throws exception
/**@{