CreateQuery t2 (children 3)
 Identifier t2
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration id (children 1)
    DataType UInt32
   ColumnDeclaration key (children 1)
    DataType Int32
   ColumnDeclaration payload (children 1)
    DataType String
 Storage definition (children 2)
  Function MergeTree
  Identifier id
