SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 3)
    Identifier pickup_date
    Function groupBitmap (alias user_num) (children 1)
     ExpressionList (children 1)
      Identifier uid
    Function bitmapToArray (alias users) (children 1)
     ExpressionList (children 1)
      Function groupBitmapState (children 1)
       ExpressionList (children 1)
        Identifier uid
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier bitmap_test
   ExpressionList (children 1)
    Identifier pickup_date
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier pickup_date