Apache DataFusion Comet Spark Accelerator
active 2025-02-22 → 2026-08-08 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 533 days from 2025-02-22 to 2026-08-08. Pushes: 943 total, peak 10 in a day. Pull requests: 1,086 total, peak 14 in a day. Issues: 901 total, peak 75 in a day. Comments: 3,333 total, peak 45 in a day. Stars: 133 total, peak 6 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| andygrove | 2.9K | 417 | 543 | 853 |
| comphead | 959 | 75 | 88 | 371 |
| mbutrovich | 719 | 196 | 98 | 176 |
| parthchandra | 582 | 28 | 31 | 295 |
| coderfender | 451 | 4 | 28 | 309 |
| codecov-commenter | 388 | 0 | 0 | 388 |
| kazuyukitanimura | 251 | 11 | 20 | 103 |
| github-actions[bot] | 250 | 184 | 0 | 15 |
| wForget | 241 | 1 | 21 | 122 |
| hsiang-c | 154 | 0 | 17 | 66 |
| dependabot[bot] | 119 | 20 | 82 | 17 |
| Shekharrajak | 93 | 0 | 13 | 58 |
| martin-g | 88 | 1 | 1 | 70 |
| kazantsev-maksim | 58 | 0 | 18 | 26 |
| huaxingao | 56 | 0 | 10 | 28 |
| manuzhang | 49 | 0 | 14 | 21 |
| rishvin | 45 | 0 | 6 | 32 |
| Kontinuation | 41 | 0 | 4 | 22 |
| 0lai0 | 28 | 0 | 5 | 16 |
| akupchinskiy | 27 | 0 | 3 | 17 |
Recent activity
Latest issues, pull requests and releases
- Issue#5319unikdahal2026-08-08 23:17Support Iceberg `SparkCopyOnWriteScan` in `IcebergReflection.ICEBERG_SCAN_CLASSES`
- Issue#5308github-actions[bot]2026-08-07 20:16feat: Write Iceberg Parquet data files natively via iceberg-rust (part 3 of 3)
- Issue comment#5184sunchao2026-08-07 20:11[DISCUSS] Is Comet ready to move to top-level Apache Comet project?
- Pull request#5290andygrove2026-08-07 20:04
- Issue comment#5122peterxcli2026-08-07 18:01Accelerate row-level MERGE / UPDATE / DELETE plans (MergeRowsExec, ReplaceDataExec, WriteDeltaExec)
- Issue comment#5298andygrove2026-08-07 17:48feat: detect Iceberg V2 writes and emit fall-back reasons
- Issue comment#5291andygrove2026-08-07 16:31Determine whether "Apache Comet" is a suitable project name
- Issue comment#5293andygrove2026-08-07 16:03refactor: hook native Parquet writes into Spark's WriteFilesExec seam
- Issue#5306andygrove2026-08-07 15:58Reconcile the two config namespaces for native writes
- Issue comment#5291andygrove2026-08-07 14:25Determine whether "Apache Comet" is a suitable project name
- Issue comment#5255jordepic2026-08-04 14:57test: audit CI failures from enabling the Iceberg write split-operator plan by default
- Issue comment#5164dependabot[bot]2026-08-03 16:10chore(deps): bump reqsign-core from 3.1.0 to 3.2.0 in /native in the all-other-cargo-deps group across 1 directory
- Pull request#5086andygrove2026-07-28 17:09
- Issue#4967kazuyukitanimura2026-07-20 17:13Spark 4.2: ANSI arithmetic overflow tests fail under Comet
- Issue comment#4946comphead2026-07-16 00:17chore: Support native writer `Overwrite` and `ErrorIfExists` modes
- Issue comment#4927mbutrovich2026-07-15 22:24perf: optimize `struct_to_json` (10% faster)
- Pull request#4945andygrove2026-07-15 19:55
- Issue#4913wForget2026-07-14 07:35feat: Support Apache Uniffle remote shuffle service for Comet native shuffle
- Pull request#4815andygrove2026-07-06 16:39
- Pull request#4826sandugood2026-07-05 07:36
- Issue comment#3757github-actions[bot]2026-07-05 02:18feat: Support Spark expression: percentile_cont
- Issue comment#3783github-actions[bot]2026-07-05 02:18bench: improve Iceberg TPC workflow and plan capture
- Pull request#4791comphead2026-07-01 23:46
- Issue#4788mbutrovich2026-07-01 20:37bug: `flatten` drops nulls and returns wrong results when a sub-array is null
- Issue comment#4761andygrove2026-06-30 00:35fix: date_trunc schema mismatch and DST handling in non-UTC timezones
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 133 stars here means stars gained during the window, not the repo's star count.