CreateQuery t_02848_mt1 (children 3)
 Identifier t_02848_mt1
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration k (children 1)
    DataType UInt32
   ColumnDeclaration v (children 1)
    DataType String
 Storage definition (children 3)
  Function MergeTree
  Identifier k
  Set
