CreateQuery memory_01069 mt (children 4)
 Identifier memory_01069
 Identifier mt
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration n (children 1)
    DataType UInt8
 Storage definition (children 2)
  Function MergeTree (children 1)
   ExpressionList
  Identifier n