CreateQuery empty_summing (children 3)
 Identifier empty_summing
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration d (children 1)
    DataType Date
   ColumnDeclaration k (children 1)
    DataType UInt64
   ColumnDeclaration v (children 1)
    DataType Int8
 Storage definition (children 1)
  Function SummingMergeTree (children 1)
   ExpressionList (children 3)
    Identifier d
    Identifier k
    Literal UInt64_8192