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• OlapScanNode: Completed
• FileScanNode: (end of September)
  FileScanNode will support both the previous FileScanNode's query capabilities for external table (Hive, Iceberg, hudi, etc.) and the BrokerScanNode's load capabilities. After that, the BrokerScanNode will be removed.
• EsScanNode (October)
• JdbcScanNode (October)
• SchemaScanNode (October)

Most of the code is in the be/src/vec/exec/scan/ directory.

New Parquet Reader

This is another work, but related to the refactoring of the scan node.

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