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SUM(DISTINCT) over a bounded window frame ignores NULLs' validity mask and returns 0 instead of NULL

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#22754 In apache/datafusion;

· kumarUjjawal opened on Jun 4, 2026

Semi/anti join column stats not scaled with estimated row count

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#22743 In apache/datafusion;

· neilconway opened on Jun 3, 2026

GroupValuesRows::emit untracked decode buffer leaks past MemoryReservation

Status: Open.

#22739 In apache/datafusion;

· avantgardnerio opened on Jun 3, 2026

perf: LogicalPlan enum is 320 bytes due to oversized DdlStatement variants

enhancementNew feature or requestNew feature or request

performanceMake DataFusion fasterMake DataFusion faster

Status: Open.

#22732 In apache/datafusion;

· zhuqi-lucas opened on Jun 3, 2026

Regex simplification of anchored patterns produces wrong results

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#22726 In apache/datafusion;

· lyne7-sc opened on Jun 3, 2026

NestedLoopJoinExec spill path: untracked allocation overshoots memory pool

bugSomething isn't workingSomething isn't working

Status: Open.

#22723 In apache/datafusion;

· avantgardnerio opened on Jun 3, 2026

[datafusion-spark] next_day trims whitespace from dayOfWeek; Spark does not

good first issueGood for newcomersGood for newcomers

spark

Status: Open.

#22717 In apache/datafusion;

· andygrove opened on Jun 2, 2026

EPIC: complete GroupValuesColumn type coverage (nested types + remaining primitives)

Status: Open.

#22715 In apache/datafusion;

· zhuqi-lucas opened on Jun 2, 2026

Decimal average can overflow because its inner intermediate sum state overflows its storage size

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#22713 In apache/datafusion;

· AdamGS opened on Jun 2, 2026

Split Aggregation Logic into Dedicated Streams

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#22710 In apache/datafusion;

· 2010YOUY01 opened on Jun 2, 2026

Be able to cast struct to have non-nullable inner field

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#22709 In apache/datafusion;

· Jefffrey opened on Jun 2, 2026

BufferExec and AnalyzeExec should report eager evaluation

Status: Open.

#22708 In apache/datafusion;

· geoffreyclaude opened on Jun 2, 2026