SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function groupArray (children 1)
     ExpressionList (children 1)
      Identifier dt
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier date_datetime_key_condition
   Function greater (children 1)
    ExpressionList (children 2)
     Identifier dt
     Function toDate (children 1)
      ExpressionList (children 1)
       Literal \'2019-01-02\'
