AlterQuery  join_table_mutation (children 2)
 ExpressionList (children 1)
  AlterCommand DELETE (children 1)
   Function equals (children 1)
    ExpressionList (children 2)
     Function modulo (children 1)
      ExpressionList (children 2)
       Identifier id
       Literal UInt64_2
     Literal UInt64_0
 Identifier join_table_mutation