CreateQuery t_tup (children 3)
 Identifier t_tup
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration t (children 1)
    DataType Tuple (children 1)
     ExpressionList (children 2)
      NameTypePair s (children 1)
       DataType String
      NameTypePair u (children 1)
       DataType UInt32
 Storage definition (children 3)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
  Set