問題文
A reviewer wants to know where the concrete location of each stored file is written down, together with the numbers that describe the values inside its columns. Which layer of the tree holds both of those at once?
選択肢
- The engine opens the data manifest file to get the path of each data file and the metrics of its columns.
- The engine opens the parquet page header to get the path of each data file and the metrics of its columns.
- The engine opens the current metadata pointer to get the path of each data file and the metrics of its columns.
- The engine opens the snapshot summary map to get the path of each data file and the metrics of its columns.