CreateQuery totimezone_op_mono (children 3)
 Identifier totimezone_op_mono
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration i (children 1)
    DataType int
   ColumnDeclaration tz (children 1)
    DataType String
   ColumnDeclaration create_time (children 1)
    DataType DateTime
 Storage definition (children 3)
  Function MergeTree
  Function toDate (children 1)
   ExpressionList (children 1)
    Identifier create_time
  Identifier i
