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Support StringSplitSQL to enable split_part

enhancementNew feature or requestNew feature or request

expressionSpark expression relatedSpark expression related

requires-triage

Status: Open.

#4561 In apache/datafusion-comet;

· andygrove opened on Jun 1, 2026

array_size returns -1 instead of NULL for NULL input

bugSomething isn't workingSomething isn't working

expressionSpark expression relatedSpark expression related

requires-triage

Status: Open.

#4560 In apache/datafusion-comet;

· andygrove opened on Jun 1, 2026

Support aes_encrypt / aes_decrypt / try_aes_decrypt natively

enhancementNew feature or requestNew feature or request

expressionSpark expression relatedSpark expression related

requires-triage

Status: Open.

#4558 In apache/datafusion-comet;

· andygrove opened on Jun 1, 2026

try_to_date / try_to_timestamp fall back to Spark even though to_date / to_timestamp are accelerated

enhancementNew feature or requestNew feature or request

expressionSpark expression relatedSpark expression related

requires-triage

temporal expressions

Status: Open.

#4556 In apache/datafusion-comet;

· andygrove opened on Jun 1, 2026

try_make_timestamp returns wrong values for invalid inputs instead of NULL

bugSomething isn't workingSomething isn't working

requires-triage

Status: Open.

#4554 In apache/datafusion-comet;

· andygrove opened on Jun 1, 2026

Natively support time-window grouping expressions: window, session_window, window_time

enhancementNew feature or requestNew feature or request

expressionSpark expression relatedSpark expression related

requires-triage

temporal expressions

Status: Open.

#4553 In apache/datafusion-comet;

· andygrove opened on Jun 1, 2026

Natively support regr_sxx, regr_syy, regr_sxy, regr_slope, regr_intercept, regr_r2 aggregates

area:aggregationHash aggregates, aggregate expressionsHash aggregates, aggregate expressions

enhancementNew feature or requestNew feature or request

expressionSpark expression relatedSpark expression related

requires-triage

Status: Open.

#4552 In apache/datafusion-comet;

· andygrove opened on Jun 1, 2026

Bug triage results: 2026-06-01

requires-triage

Status: Open.

#4548 In apache/datafusion-comet;

· andygrove opened on Jun 1, 2026

CI lint check passed, but then later jobs failed with lint errors

area:ciCI/CD, GitHub Actions, build toolingCI/CD, GitHub Actions, build tooling

bugSomething isn't workingSomething isn't working

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

Status: Open.

#4545 In apache/datafusion-comet;

· andygrove opened on May 30, 2026

[EPIC] Support Spark interval types (CalendarInterval / YearMonthInterval / DayTimeInterval) and interval expressions

requires-triage

Status: Open.

#4540 In apache/datafusion-comet;

· andygrove opened on May 30, 2026

JVM codegen dispatcher miscompiles map-typed (MapType) output

area:expressionsExpression evaluationExpression evaluation

area:ffiArrow FFI / JNI boundaryArrow FFI / JNI boundary

bugSomething isn't workingSomething isn't working

priority:criticalData corruption, silent wrong results, security issuesData corruption, silent wrong results, security issues

Status: Open.

#4539 In apache/datafusion-comet;

· andygrove opened on May 30, 2026

PlanDataInjector does N x M canInject calls per operator tree

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

Status: Open.

#4530 In apache/datafusion-comet;

· schenksj opened on May 30, 2026