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Implements comprehensive test for predicate pushdown with stripe-level fragments using SplitByStripe functionality. Tests that: - Filtering correctly selects only matching stripes - Each stripe fragment contains exactly one stripe - Stripe indices are correctly preserved - Row counts are correct for each stripe fragment Test cases cover: - All stripes (literal true) - Single stripe matches (equality, range) - Multiple stripe matches (< operator, >= operator, AND ranges) - Empty results (out of bounds, literal false) - OR predicates (disjoint ranges) - Complex multi-stripe ranges Uses 8-stripe test file with distinct value ranges per stripe (stripe N contains values [N*100, N*100+99]). Mirrors ParquetFileFormatScan::PredicatePushdownRowGroupFragments test. Co-authored-by: Claude Sonnet 4.5 <[email protected]>
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Session 3 complete: Tasks #4-#9 done. OrcFileFragment infrastructure, metadata loading, and field resolution implemented.