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• 2026/07/20 Re: [PR] perf: dedupe Iceberg delete files by index in native scan serde [datafusion-comet] via GitHub
• 2026/07/20 Re: [I] Implement TimeType support - Time extraction (from TimeType to Int/Decimal) [datafusion-comet] via GitHub
• 2026/07/20 [I] Implement TimeType support - Time extraction (from TimeType to Int/Decimal) [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] feat: support co-partitioned range right-side equi hash joins [datafusion] via GitHub
• 2026/07/20 [PR] perf: dedupe Iceberg delete files by index in native scan serde [datafusion-comet] via GitHub
• 2026/07/20 [PR] chore(join): refactor `BitwiseSortMergeJoinStream` to use generators instead of manual state [datafusion] via GitHub
• 2026/07/20 Re: [PR] Reuse hash values during Aggregate(partial) -> Repartition -> Aggregate(final) [datafusion] via GitHub
• 2026/07/20 Re: [PR] Improvement: keep order-preserving repartitions for streaming aggregates [datafusion] via GitHub
• 2026/07/20 Re: [PR] Improvement: keep order-preserving repartitions for streaming aggregates [datafusion] via GitHub
• 2026/07/20 [PR] chore: remove dead Parquet parallel-IO configs [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] fix: skip dynamic filter pushdown for null-aware anti joins with a nullable build key [datafusion] via GitHub
• 2026/07/20 Re: [PR] Remove the hash-partitioning shuffle writer [datafusion-ballista] via GitHub
• 2026/07/20 Re: [I] (Informational) AI driven performance analysis of scan implementation across plain Spark, Velox, and Comet [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] fix: avoid panic in array_position start_from near i64::MIN [datafusion] via GitHub
• 2026/07/20 Re: [I] Spark 4.2: native Iceberg REST catalog scan test fails under Comet [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] Add blog: Optimizing for Almost Sorted Data: Sort Pushdown in Apache DataFusion [datafusion-site] via GitHub
• 2026/07/20 Re: [PR] Add blog: Optimizing for Almost Sorted Data: Sort Pushdown in Apache DataFusion [datafusion-site] via GitHub
• 2026/07/20 Re: [I] Native implementation of `get_json_object` returns last value for duplicate keys, Spark returns first [datafusion-comet] via GitHub
• 2026/07/20 Re: [I] cast string to boolean: trim ISO control bytes to match Spark's UTF8String.trimAll [datafusion-comet] via GitHub
• 2026/07/20 Re: [I] Spark format_string ignores parentheses flag for negative decimals [datafusion] via GitHub
• 2026/07/20 Re: [PR] Add optional native Lance scan support [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] Remove the hash-partitioning shuffle writer [datafusion-ballista] via GitHub
• 2026/07/20 Re: [I] executor hangs on `ctrl+c` [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] Remove the hash-partitioning shuffle writer [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat(benchmarks): persist TPC-H results resiliently and add a compare subcommand [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] feat(benchmarks): persist TPC-H results resiliently and add a compare subcommand [datafusion-ballista] via GitHub
• 2026/07/20 Re: [I] Benchmarks: persist partial/failed TPC-H results and add a compare tool [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] fix: avoid panic in array_position start_from near i64::MIN [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] Remove the hash-partitioning shuffle writer [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support pushdown-aware dynamic filter [datafusion] via GitHub
• 2026/07/20 Re: [PR] Js/benchmark 4 dynamic filtering alternatives [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support pushdown-aware dynamic filter [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: removed all instances of deprecated virtualtable values field [datafusion] via GitHub
• 2026/07/20 [I] Bug triage results: 2026-07-20 [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] Added support for unpivot in Redshift with expression and bracketsless [datafusion-sqlparser-rs] via GitHub
• 2026/07/20 Re: [PR] Remove the hash-partitioning shuffle writer [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] IN LIST: add branchless filter for small primitive lists [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support pushdown-aware dynamic filter [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: add withAlternative alias mechanism for CometConf [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] Js/benchmark 4 dynamic filtering alternatives [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support approx_count_distinct aggregate expression [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] Remove the hash-partitioning shuffle writer [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] Remove the hash-partitioning shuffle writer [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] feat(parquet): implement file commit protocol for native Parquet writes [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] feat: support pushdown-aware dynamic filter [datafusion] via GitHub
• 2026/07/20 Re: [PR] Js/benchmark 4 dynamic filtering alternatives [datafusion] via GitHub
• 2026/07/20 [PR] Js/benchmark 4 dynamic filtering alternatives [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: Range Partitioning FFI [datafusion] via GitHub
• 2026/07/20 Re: [I] scheduler logs quite noisy [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] feat: support listagg / string_agg aggregate (Spark 4.0+) [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] chore(scheduler,executor): downgrade #2038 per-task traces to debug [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] Remove the hash-partitioning shuffle writer [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 [PR] Remove the hash-partitioning shuffle writer [datafusion-ballista] via GitHub
• 2026/07/20 [PR] feat(substrait): add extension table consumer hook [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support pushdown-aware dynamic filter [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support pushdown-aware dynamic filter [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [I] scheduler logs quite noisy [datafusion-ballista] via GitHub
• 2026/07/20 [I] executor hangs on `ctrl+c` [datafusion-ballista] via GitHub
• 2026/07/20 [PR] feat: add withAlternative alias mechanism for CometConf [datafusion-comet] via GitHub
• 2026/07/20 [I] Config naming audit: rename inconsistent spark.comet.* keys before 1.0 [datafusion-comet] via GitHub
• 2026/07/20 [PR] chore(scheduler,executor): downgrade #2038 per-task traces to debug [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [I] scheduler logs quite noisy [datafusion-ballista] via GitHub
• 2026/07/20 Re: [I] scheduler logs quite noisy [datafusion-ballista] via GitHub
• 2026/07/20 [I] scheduler logs quite noisy [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] feat: support pushdown-aware dynamic filter [datafusion] via GitHub
• 2026/07/20 [PR] docs: document Spark version adoption and support-lifetime policy [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] feat: Add SQL planner, physical planner, and TableProvider hook for MERGE INTO [datafusion] via GitHub
• 2026/07/20 Re: [PR] IN LIST: add branchless filter for small primitive lists [datafusion] via GitHub
• 2026/07/20 Re: [PR] IN LIST: add branchless filter for small primitive lists [datafusion] via GitHub
• 2026/07/20 Re: [I] panic: generate_series table function overflows when integer step passes i64::MAX [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support pushdown-aware dynamic filter [datafusion] via GitHub
• 2026/07/20 [I] Benchmarks: persist partial/failed TPC-H results and add a compare tool [datafusion-ballista] via GitHub
• 2026/07/20 [PR] feat(benchmarks): persist TPC-H results resiliently and add a compare subcommand [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] test: promote `try_to_date`/`try_to_timestamp` SQL tests to native coverage [datafusion-comet] via GitHub
• 2026/07/20 Re: [I] try_to_date / try_to_timestamp fall back to Spark even though to_date / to_timestamp are accelerated [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] perf: vectorize `spark_unscaled_value` (9x faster) [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] chore(ci): bump actions/setup-python from 6 to 7 [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] Improvement: keep order-preserving repartitions for streaming aggregates [datafusion] via GitHub
• 2026/07/20 Re: [PR] chore(ci): bump taiki-e/install-action from 2.83.3 to 2.83.4 [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] chore(deps): bump futures from 0.3.32 to 0.3.33 [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] chore(deps): bump serde from 1.0.228 to 1.0.229 [datafusion-ballista] via GitHub
• 2026/07/20 Re: [I] Support Substrait exchange output for range repartitioning [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: Support Union type in approx_distinct [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support pushdown-aware dynamic filter [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: Add SQL planner, physical planner, and TableProvider hook for MERGE INTO [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support pushdown-aware dynamic filter [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: Support Union type in approx_distinct [datafusion] via GitHub
• 2026/07/20 Re: [PR] chore(deps): bump async-trait from 0.1.89 to 0.1.91 [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] feat: log sort shuffle spills at WARN, keep write completion at DEBUG [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] feat: Support Union type in approx_distinct [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: Store only the last row in the previous cursor for round robin tie-breaking purposes [datafusion] via GitHub
• 2026/07/20 Re: [PR] fix: reduce peak memory usage when round robin tiebreaker is disabled [datafusion] via GitHub
• 2026/07/20 Re: [PR] perf: reuse input null buffer and add no-nulls fast path in Spark `hex` [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support pushdown-aware dynamic filter [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: native collect_list / array_agg aggregate [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] `array_agg()` performance improvements [datafusion] via GitHub
• 2026/07/20 Re: [PR] Reuse hash values during Aggregate(partial) -> Repartition -> Aggregate(final) [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] `array_agg()` performance improvements [datafusion] via GitHub
• 2026/07/20 Re: [PR] Reuse hash values during Aggregate(partial) -> Repartition -> Aggregate(final) [datafusion] via GitHub
• 2026/07/20 Re: [PR] `array_agg()` performance improvements [datafusion] via GitHub
• 2026/07/20 [PR] fix: generate_series overflow panics at i64 boundary and out-of-range dates [datafusion] via GitHub
• 2026/07/20 Re: [PR] `array_agg()` performance improvements [datafusion] via GitHub
• 2026/07/20 Re: [I] panic: generate_series table function overflows when integer step passes i64::MAX [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support co-partitioned range right-side equi hash joins [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 [PR] feat: support interval codegen dispatch for nested values and native shuffle [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] feat: support co-partitioned range right-side equi hash joins [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support co-partitioned range right-side equi hash joins [datafusion] via GitHub
• 2026/07/20 Re: [I] Comet writer should support 2PC and staging output [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] feat(core): RuntimeStatsExec — passthrough tap for row counts + quantile sketches [datafusion-ballista] via GitHub
• 2026/07/20 Re: [I] Codegen dispatch for YearMonth and DayTimeInterval with shuffle and nested element [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] feat(core): BufferExec — generic flow-control op with a memory-pool Dam mode [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] refactor: move AttributeReference and KnownFloatingPointNormalized expression support checks to getSupportLevel [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] feat(core): RuntimeStatsExec — passthrough tap for row counts + quantile sketches [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] feat(core): RuntimeStatsExec — passthrough tap for row counts + quantile sketches [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] refactor: move catalog traits to session crate [datafusion] via GitHub
• 2026/07/20 Re: [PR] refactor: pass SubqueryContext explicitly through planner traits [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: Support Union type in approx_distinct [datafusion] via GitHub
• 2026/07/20 Re: [PR] Reuse hash values during Aggregate(partial) -> Repartition -> Aggregate(final) [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [I] Improve performance of high cardinality grouping by reusing hash values [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: allow an external semaphore for executor task concurrency [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] feat: allow an external semaphore for executor task concurrency [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] Reuse hash values during Aggregate(partial) -> Repartition -> Aggregate(final) [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] Reuse hash values during Aggregate(partial) -> Repartition -> Aggregate(final) [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] Add blog: Optimizing for Almost Sorted Data: Sort Pushdown in Apache DataFusion [datafusion-site] via GitHub
• 2026/07/20 Re: [PR] Reuse hash values during Aggregate(partial) -> Repartition -> Aggregate(final) [datafusion] via GitHub
• 2026/07/20 Re: [I] regex_match_dyn (array-array path) does not support Dictionary-encoded needle arrays (SIMILAR TO / ~ operators) [datafusion] via GitHub
• 2026/07/20 Re: [PR] perf: reuse input null buffer and add no-nulls fast path in Spark `hex` [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [I] regex_match_dyn (array-array path) does not support Dictionary-encoded needle arrays (SIMILAR TO / ~ operators) [datafusion] via GitHub
• 2026/07/20 Re: [PR] Reuse hash values during Aggregate(partial) -> Repartition -> Aggregate(final) [datafusion] via GitHub
• 2026/07/20 Re: [PR] Reuse hash values during Aggregate(partial) -> Repartition -> Aggregate(final) [datafusion] via GitHub
• 2026/07/20 Re: [PR] POC hash aggregate repartition subpartitions [datafusion] via GitHub
• 2026/07/20 Re: [PR] Reuse hash values during Aggregate(partial) -> Repartition -> Aggregate(final) [datafusion] via GitHub
• 2026/07/20 Re: [PR] `array_agg()` performance improvements [datafusion] via GitHub
• 2026/07/20 [PR] fix: support Dictionary arrays in regex_match_dyn (#23709) [datafusion] via GitHub
• 2026/07/20 Re: [PR] Add blog: Optimizing for Almost Sorted Data: Sort Pushdown in Apache DataFusion [datafusion-site] via GitHub
• 2026/07/20 Re: [I] Improve performance of high cardinality grouping by reusing hash values [datafusion] via GitHub
• 2026/07/20 Re: [PR] chore(deps): bump object_store from 0.13.2 to 0.14.0 in /python [datafusion-ballista] via GitHub
• 2026/07/20 Re: [PR] chore(deps): bump object_store from 0.13.2 to 0.14.0 in /python [datafusion-ballista] via GitHub
• 2026/07/20 Re: [I] Improve performance of high cardinality grouping by reusing hash values [datafusion] via GitHub
• 2026/07/20 Re: [PR] gabotechs/reuse-hashes [datafusion] via GitHub
• 2026/07/20 Re: [PR] gabotechs/reuse-hashes [datafusion] via GitHub
• 2026/07/20 Re: [PR] gabotechs/reuse-hashes [datafusion] via GitHub
• 2026/07/20 [PR] perf: reuse input null buffer and add no-nulls fast path in Spark `hex` [datafusion] via GitHub
• 2026/07/20 Re: [PR] gabotechs/reuse-hashes [datafusion] via GitHub
• 2026/07/20 [PR] gabotechs/reuse-hashes [datafusion] via GitHub
• 2026/07/20 Re: [PR] Add name filter to metrics [datafusion] via GitHub
• 2026/07/20 [PR] Add name filter to metrics [datafusion] via GitHub
• 2026/07/20 Re: [PR] experiment feat(agg): TopK aggregation for count(*)/count(col) DESC/ASC LIMIT K [datafusion] via GitHub
• 2026/07/20 Re: [PR] experiment feat(agg): TopK aggregation for count(*)/count(col) DESC/ASC LIMIT K [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: Support Union type in approx_distinct [datafusion] via GitHub
• 2026/07/20 [PR] fix: support parentheses for negative decimal formatting [datafusion] via GitHub
• 2026/07/20 [I] Spark format_string ignores parentheses flag for negative decimals [datafusion] via GitHub
• 2026/07/20 Re: [PR] perf(hash-join): union-bounds Partitioned dynamic filter (completes #22384, TPC-DS -27%) [datafusion] via GitHub
• 2026/07/20 [PR] `array_agg()` performance improvements [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: make StatisticsRegistry the default operator-statistics path [datafusion] via GitHub
• 2026/07/20 [I] Codegen dispatch for YearMonth and DayTimeInterval with shuffle and nested element [datafusion-comet] via GitHub
• 2026/07/20 Re: [I] `array_agg()` performance [datafusion] via GitHub
• 2026/07/20 [I] `array_agg()` performance [datafusion] via GitHub
• 2026/07/20 [PR] feat: Support Union type in approx_distinct [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: Lambda function support from DataFusion, illustrated with array_filter [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] feat: add CalendarIntervalType support [datafusion-comet] via GitHub
• 2026/07/20 Re: [I] regex_match_dyn (array-array path) does not support Dictionary-encoded needle arrays (SIMILAR TO / ~ operators) [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: add CalendarIntervalType support [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] test: More `slt` tests for `iszero` function [datafusion] via GitHub
• 2026/07/20 Re: [PR] test: add advanced dictionary test [datafusion] via GitHub
• 2026/07/20 Re: [PR] refactor(proto): migrate sort merge join serde [datafusion] via GitHub
• 2026/07/20 Re: [PR] test: More `slt` tests for `iszero` function [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat(physical-plan): generic Rows-backed GroupColumn keeps mixed schemas on the column-wise path [datafusion] via GitHub
• 2026/07/20 Re: [I] Allow co-partitioned `Partitioning::Range` inputs for full hash joins [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: allow Full joins to reuse range co-partitioning in HashJoinExec [datafusion] via GitHub
• 2026/07/20 [PR] test: More `slt` tests for `iszero` function [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat: support multiply_ym_interval with YearMonth interval codegen dispatch [datafusion-comet] via GitHub
• 2026/07/20 Re: [PR] refactor(proto): migrate sort merge join serde [datafusion] via GitHub
• 2026/07/20 Re: [PR] perf: optimize LEAD/LAG IGNORE NULLS evaluation [datafusion] via GitHub
• 2026/07/20 [PR] refactor(proto): migrate sort merge join serde [datafusion] via GitHub
• 2026/07/20 Re: [I] Correlated EXISTS with constant-false predicate produces dangling mark column reference [datafusion] via GitHub
• 2026/07/20 Re: [I] The negation operator escapes type checking at logical planning phase [datafusion] via GitHub
• 2026/07/20 Re: [PR] feat(physical-plan): generic Rows-backed GroupColumn keeps mixed schemas on the column-wise path [datafusion] via GitHub
• 2026/07/20 Re: [I] Scalar subquery (`Expr::ScalarSubquery`) does not fail when subquery is not scalar [datafusion] via GitHub

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