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Decorrelate subqueries whose grouping sets leave out the correlated column

enhancementNew feature or requestNew feature or request

Status: Open.

#25708 In apache/datafusion;

· jayzhan211 opened on Sep 24, 2026

EliminateCrossJoin drops NullEqualsNull from nested inner joins

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#25704 In apache/datafusion;

· neilconway opened on Sep 24, 2026

trunc(x) on a column turns -0.0 into 0.0

Status: Open.

#25702 In apache/datafusion;

· jonasdedden opened on Sep 24, 2026

NestedLoopJoinExec memory-limited fallback returns an empty result (wrong count = 0) instead of spilling or erroring

Status: Open.

#25701 In apache/datafusion;

· hosseinsha opened on Sep 24, 2026

Improve documentation for StatisticsRegistry, ExtendedStatistics, and StatisticsContext::compute_extended

Status: Open.

#25698 In apache/datafusion;

· asolimando opened on Sep 24, 2026

Null-aware LeftMark joins miss logical NULLs in dictionary keys

Status: Open.

#25691 In apache/datafusion;

· viirya opened on Sep 24, 2026

date_bin can return incorrectly ordered NULLs after timestamp overflow

Status: Open.

#25690 In apache/datafusion;

· viirya opened on Sep 24, 2026

Remove the redundant join-flattening precheck in EliminateCrossJoin

Status: Open.

#25680 In apache/datafusion;

· Toby1009 opened on Sep 24, 2026

Aggregate UDF's hard ordering requirement is dropped when it has no reverse_expr

Status: Open.

#25676 In apache/datafusion;

· killme2008 opened on Sep 24, 2026

PushDownLimit keeps a redundant Limit above a Sort it gave a fetch, so every ORDER BY ... LIMIT n query runs one extra optimizer pass

Status: Open.

#25671 In apache/datafusion;

· adriangb opened on Sep 24, 2026

Untyped aliased placeholder in a UNION arm fails with "Schema error: No field named <alias>" when the plan is analyzed or optimized

Status: Open.

#25669 In apache/datafusion;

· adriangb opened on Sep 24, 2026

Preserve scalar UDF output types in property analysis with a central fallback

Status: Open.

#25667 In apache/datafusion;

· Toby1009 opened on Sep 23, 2026