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feat: add generic FallbackGroupColumn so any Arrow type uses GroupValuesColumn (no fallback to GroupValuesRows)

Status: Open.

#22701 In apache/datafusion;

· zhuqi-lucas opened on Jun 1, 2026

stats_cartesian_product computes incorrect byte size for cross join

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#22699 In apache/datafusion;

· neilconway opened on Jun 1, 2026

round() mishandles large Int64 and UInt64 values

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#22696 In apache/datafusion;

· pchintar opened on Jun 1, 2026

Correlated EXISTS with constant-false predicate produces dangling mark column reference

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#22691 In apache/datafusion;

· xiedeyantu opened on Jun 1, 2026

[Refactor] Centralize checked byte-size and offset accounting for variable-size string builders

Status: Open.

#22688 In apache/datafusion;

· kosiew opened on Jun 1, 2026

Make Scalar Distance Overflow-Aware and Domain-Sized

Status: Open.

#22687 In apache/datafusion;

· kosiew opened on Jun 1, 2026

Refactor eliminate_outer_join null-rejection tracking to side-level state

Status: Open.

#22686 In apache/datafusion;

· kosiew opened on Jun 1, 2026

Centralize checked timestamp scaling for DATE_BIN

Status: Open.

#22685 In apache/datafusion;

· kosiew opened on Jun 1, 2026

Share post-aggregate clause rebasing and validation logic in SQL planner

Status: Open.

#22684 In apache/datafusion;

· kosiew opened on Jun 1, 2026

feat: add GroupColumn support for List / Struct / Map / FixedSizeList in multi-column GROUP BY

Status: Open.

#22682 In apache/datafusion;

· zhuqi-lucas opened on Jun 1, 2026

[EPIC] Subquery Materalization

enhancementNew feature or requestNew feature or request

PROPOSAL EPICA proposal being discussed that is not yet fully underwayA proposal being discussed that is not yet fully underway

Status: Open.

Feature

#22676 In apache/datafusion;

· nathanb9 opened on May 31, 2026

Tighten ScalarSubqueryToJoin Projection Rewrite State and Coverage

Status: Open.

#22670 In apache/datafusion;

· kosiew opened on May 31, 2026