InsertQuery   (children 3)
 Function file (children 1)
  ExpressionList (children 1)
   Identifier 02458_data.jsonl
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Literal NULL (alias x)
     Literal UInt64_42 (alias y)
    Set
 Set
