InsertQuery   (children 3)
 Function file (children 1)
  ExpressionList (children 1)
   Function concat (children 1)
    ExpressionList (children 2)
     Function database (children 1)
      ExpressionList
     Literal \'.data_02250.jsonl\'
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 1)
     Literal NULL (alias x)
    Set
 Set
