fresh-borzoni opened a new pull request, #151:
URL: https://github.com/apache/fluss-rust/pull/151
Adds two new methods for column projection:
1. Table.new_log_scanner_with_projection(column_indices: List[int])
- Project columns by index (C++ parity)
- Example: scanner = table.new_log_scanner_with_projection([0, 2, 4])
2. Table.new_log_scanner_with_column_names(column_names: List[str])
- Project columns by name (Python-specific, more idiomatic!)
- Example: scanner = table.new_log_scanner_with_column_names(['id',
'name', 'email'])
Both methods create LogScanner with specified columns only, improving
performance by reducing data transfer and processing overhead.
Implementation leverages core scanner.project() and
scanner.project_by_name() APIs.
Error handling validates column indices/names before creating scanner.
Closes #149
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