The DROP READWRITE_SPLITTING RULE syntax is used to drop readwrite splitting rule for specified database
DropReadwriteSplittingRule ::=
  'DROP' 'READWRITE_SPLITTING' 'RULE' ('FROM' databaseName)?
databaseName ::=
  identifier
databaseName is not specified, the default is the currently used DATABASE. If DATABASE is not used, No database selected will be prompted.DROP READWRITE_SPLITTING RULE ms_group_1 FROM readwrite_splitting_db;
DROP READWRITE_SPLITTING RULE ms_group_1;
DROP, READWRITE_SPLITTING, RULE
