ADD SHARDING HINT DATABASE_VALUE

AddShardingHintDatabaseValue ::=
  'ADD' 'SHARDING' 'HINT' 'DATABASE_VALUE' shardingHintDatabaseValueDefinition
  
  shardingHintDatabaseValueDefinition ::=
    tableName '=' databaseShardingValue

  tableName ::=
    identifier

  databaseShardingValue ::=
    int

ADD SHARDING HINT DATABASE_VALUE t_order = 100;