CreateQuery b (children 3)
 Identifier b
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration number (children 1)
    DataType UInt64
 Storage definition (children 2)
  Function MergeTree
  Function greater (children 1)
   ExpressionList (children 2)
    Function now (children 1)
     ExpressionList
    Function toDateTime (children 1)
     ExpressionList (children 1)
      Identifier number
