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NTILE returns wrong result

bugSomething isn't workingSomething isn't working

priority:mediumFunctional bugs, performance regressions, broken featuresFunctional bugs, performance regressions, broken features

Status: Open.

#4255 In apache/datafusion-comet;

· comphead opened on May 6, 2026

Support Iceberg "Rewrite Data Files Procedure"

enhancementNew feature or requestNew feature or request

requires-triage

Status: Open.

#4250 In apache/datafusion-comet;

· jordepic opened on May 6, 2026

Improve performance of corr and covar

enhancementNew feature or requestNew feature or request

performance

requires-triage

Status: Open.

#4249 In apache/datafusion-comet;

· andygrove opened on May 6, 2026

Epic: Test coverage gaps for complex-type casts

enhancementNew feature or requestNew feature or request

requires-triage

Status: Open.

#4248 In apache/datafusion-comet;

· andygrove opened on May 6, 2026

Support fs.s3a.auth.profile.name and fs.s3a.auth.profile.file for ProfileCredentialsProvider

requires-triage

Status: Open.

#4245 In apache/datafusion-comet;

· karuppayya opened on May 6, 2026

Re-enable COUNT for mixed Spark partial / Comet final aggregate execution

requires-triage

Status: Open.

#4242 In apache/datafusion-comet;

· andygrove opened on May 6, 2026

Eliminate remaining row<->Arrow round-trip in CometPythonMapInArrowExec

enhancementNew feature or requestNew feature or request

requires-triage

Status: Open.

#4240 In apache/datafusion-comet;

· andygrove opened on May 6, 2026

·  

0.17.0

Preserve dictionary encoding through native expressions where possible

enhancementNew feature or requestNew feature or request

priority:lowMinor issues, test failures, tooling, cosmeticMinor issues, test failures, tooling, cosmetic

requires-triage

Status: Open.

#4228 In apache/datafusion-comet;

· andygrove opened on May 5, 2026

Support higher-order array functions via JVM UDF bridge

requires-triage

Status: Open.

#4224 In apache/datafusion-comet;

· andygrove opened on May 5, 2026

·  

0.17.0

native_datafusion more permissive than Spark 3.x when reading Parquet TimestampNTZ columns

bugSomething isn't workingSomething isn't working

requires-triage

spark 3.x

Status: Open.

#4219 In apache/datafusion-comet;

· andygrove opened on May 5, 2026

Number of rows in each column should be the same, but got [ArrayBuffer(8192, 0)]

bugSomething isn't workingSomething isn't working

native_iceberg_compatSpecific to native_iceberg_compat scan typeSpecific to native_iceberg_compat scan type

requires-triage

Status: Open.

#4211 In apache/datafusion-comet;

· andygrove opened on May 4, 2026

Bug triage results: 2026-05-04

Status: Open.

#4203 In apache/datafusion-comet;

· andygrove opened on May 4, 2026