Feat/delta kernel read#4607

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schenksj wants to merge 74 commits into

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schenksj:feat/delta-kernel-read

Commits on May 30, 2026

fix: propagate parent struct null mask in GetStructField

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fix(shuffle): get_string tolerates non-UTF-8 bytes (lossy decode)

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fix: decline native V1 scans on object_store-unsupported filesystem schemes

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Merge branch 'main' into fix/get-struct-field-null-mask
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Merge branch 'main' into fix/get-string-lossy-utf8
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Merge branch 'main' into fix/scheme-gate-object-store
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fix: rebalance deep AND/OR chains to avoid protobuf recursion limit

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fix: materialize ConstantColumnVector on Comet's serialize/export paths

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fix: decline CreateArray with struct-nullability-divergent children

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perf: O(1) PlanDataInjector lookup by op kind

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feat: surface native parquet read failures as FAILED_READ_FILE

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ci: register PlanDataInjectorSuite in PR build workflows

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ci: register CometScanSchemeFallbackSuite in PR build workflows

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test: make CometScanSchemeFallbackSuite compile under Spark 3.5 / Scala 2.12

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refactor: use imports instead of fully-qualified names in CometScanRule

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refactor: flatten AND/OR chains iteratively; test null operands and OR WHERE

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test: add end-to-end shuffle test for non-UTF-8 StringType bytes (#4521)

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fix: use withFallbackReason in scheme gate (leftover from #4508 rename)

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Commits on May 31, 2026

Commits on Jun 1, 2026

Commits on Jun 3, 2026

Commits on Jun 4, 2026

docs(contrib-delta): clarify DV-sweep guard, type-promotion scope, merge-metrics root cause

schenksj
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Commits on Jun 5, 2026

Commits on Jun 6, 2026

Commits on Jun 7, 2026