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Optimize ORDER BY by Pruning Functionally Redundant Sort Keys

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#21361 In apache/datafusion;

· xiedeyantu opened on Apr 4, 2026

Add datafusion.format.* configs test coverage

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#21354 In apache/datafusion;

· erenavsarogullari opened on Apr 4, 2026

Unnecessary RepartitionExec + SortPreservingMergeExec on single-partition sorted output

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#21349 In apache/datafusion;

· neilconway opened on Apr 3, 2026

Defer task spawning in SortPreservingMergeExec to first poll

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#21329 In apache/datafusion;

· Dandandan opened on Apr 3, 2026

Scalar subquery filters not pushed down to TableScan

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#21324 In apache/datafusion;

· neilconway opened on Apr 2, 2026

PropagateEmptyRelation does not eliminate outer joins when one side is empty

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#21320 In apache/datafusion;

· SubhamSinghal opened on Apr 2, 2026

SMALLINT addition overflow should error instead of silently wrapping

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#21318 In apache/datafusion;

· xiedeyantu opened on Apr 2, 2026

Sort pushdown: reorder row groups by statistics within each file

Status: Open.

#21317 In apache/datafusion;

· zhuqi-lucas opened on Apr 2, 2026

Duplicate GROUPING SETS rows are incorrectly collapsed during execution

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#21316 In apache/datafusion;

· xiedeyantu opened on Apr 2, 2026

feat: Support RESET ALL Command

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#21314 In apache/datafusion;

· erenavsarogullari opened on Apr 2, 2026

Add configurable UNION DISTINCT support to FILTER rewrite optimization

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#21310 In apache/datafusion;

· xiedeyantu opened on Apr 2, 2026

Mark joins don't support null mark columns

Status: Open.

#21309 In apache/datafusion;

· AdamGS opened on Apr 1, 2026