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Feat: allow metric labels to be modified in place

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#19959 In apache/datafusion;

· jayshrivastava opened on Jan 23, 2026

Make PhysicalExprAdapterFactory::create fallible

Status: Open.

#19956 In apache/datafusion;

· niebayes opened on Jan 23, 2026

<code>UPDATE ...FROM</code> bug

bugSomething isn't workingSomething isn't working

Status: Open.

#19950 In apache/datafusion;

· kosiew opened on Jan 23, 2026

Regression: <code>array_sort</code> fails on list with inner non-nullable field

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#19947 In apache/datafusion;

· timsaucer opened on Jan 23, 2026

[EPIC] Simplify datetime predicates using "preimages"

enhancementNew feature or requestNew feature or request

EPICA larger project, actively underway, with sub tasksA larger project, actively underway, with sub tasks

Status: Open.

Feature

#19946 In apache/datafusion;

· alamb opened on Jan 22, 2026

Use Arrow Extension Types Instead of Type Variation Hacks

Status: Open.

#19944 In apache/datafusion;

· kadinrabo opened on Jan 22, 2026

Extraneous casts added due to overly strict type comparison

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#19943 In apache/datafusion;

· adragomir opened on Jan 22, 2026

approx_percentile_cont_with_weight produces incorrect results due to wrong weight handling in TDigest

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#19940 In apache/datafusion;

· sesteves opened on Jan 22, 2026

Support grouped aggregates with known min/max statistics

enhancementNew feature or requestNew feature or request

performanceMake DataFusion fasterMake DataFusion faster

Status: Open.

Feature

#19938 In apache/datafusion;

· Dandandan opened on Jan 22, 2026

Improve filter push-down

Status: Open.

#19929 In apache/datafusion;

· askalt opened on Jan 21, 2026

<code>round</code> decimal incorrect result

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#19921 In apache/datafusion;

· MichaelScofield opened on Jan 21, 2026

Support JSON arrays reader/parse for datafusion

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#19920 In apache/datafusion;

· zhuqi-lucas opened on Jan 21, 2026