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Expose <code>PhysicalOptimizerRule</code> via FFI

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#20450 In apache/datafusion;

· timsaucer opened on Feb 20, 2026

TopK operator panics with "overflow" when interleaving large Utf8 string columns

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#20448 In apache/datafusion;

· lilic opened on Feb 20, 2026

[Bug] [v52 regression] Panic in <code>GroupOrderingPartial::remove_groups</code> when Partial aggregate with PartiallySorted hits memory pressure

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#20445 In apache/datafusion;

· jackkleeman opened on Feb 20, 2026

Support filter pushdown through <code>SortMergeJoinExec</code>

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#20443 In apache/datafusion;

· mdashti opened on Feb 20, 2026

Substrait consumer incorrectly parses references to outer query fields

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#20438 In apache/datafusion;

· neilconway opened on Feb 19, 2026

Panic in HashJoin with dictionary-encoded column in multi-column join key

Status: Open.

#20437 In apache/datafusion;

· erratic-pattern opened on Feb 19, 2026

Expose a way to process a pa.RecordBatchFileReader without pa.dataset.Dataset

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#20435 In apache/datafusion;

· adrien-grl opened on Feb 19, 2026

concat_ws does unnecessary type casts

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#20434 In apache/datafusion;

· neilconway opened on Feb 19, 2026

Optimizer rule error for ExtractLeafExpressions

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#20430 In apache/datafusion;

· adriangb opened on Feb 19, 2026

Optimize IN list with columns evaluation with vectorized Arrow eq kernel

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#20427 In apache/datafusion;

· zhangxffff opened on Feb 19, 2026

Extend Spark Array functions: <code>array_repeat </code>, <code>shuffle</code> and <code>slice</code> test coverage

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#20419 In apache/datafusion;

· erenavsarogullari opened on Feb 18, 2026

Serialize dynamic filters across network boundaries

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#20418 In apache/datafusion;

· jayshrivastava opened on Feb 18, 2026