CreateQuery ttl_sparse_repro (children 3)
 Identifier ttl_sparse_repro
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration a (children 1)
    DataType UInt64
   ColumnDeclaration dt (children 1)
    DataType DateTime
   ColumnDeclaration b (children 2)
    DataType UInt64
    Function plus (children 1)
     ExpressionList (children 2)
      Identifier dt
      Function toIntervalSecond (children 1)
       ExpressionList (children 1)
        Literal UInt64_2
   ColumnDeclaration c (children 1)
    DataType UInt64
 Storage definition (children 3)
  Function MergeTree
  Identifier a
  Set
