InsertQuery   (children 2)
 Identifier test2
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 1)
    ExpressionList (children 3)
     Literal UInt64_4
     Function tuple (children 1)
      ExpressionList (children 2)
       Literal UInt64_5
       Literal UInt64_6
     Literal \'s2\'
