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Use exponential decay for multi-column join selectivity estimation

Status: Open.

#21583 In apache/datafusion;

· kumarUjjawal opened on Apr 13, 2026

Add benchmark for sort pushdown Inexact path (row group reorder)

Status: Open.

#21582 In apache/datafusion;

· zhuqi-lucas opened on Apr 13, 2026

Reorder row groups by GROUP BY keys to reduce aggregate partition state and improve cache locality

Status: Open.

#21581 In apache/datafusion;

· zhuqi-lucas opened on Apr 13, 2026

DataFusion CLI is not working on Windows

bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#21574 In apache/datafusion;

· nuno-faria opened on Apr 12, 2026

Remove as_any from trait definitions

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#21572 In apache/datafusion;

· timsaucer opened on Apr 12, 2026

GROUP BY ROLLUP returns 0 rows with empty input (should return grand total row)

Status: Open.

#21570 In apache/datafusion;

· jverhoeks opened on Apr 12, 2026

Optimize ByteViewGroupValueBuilder vectorized_append

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#21568 In apache/datafusion;

· Dandandan opened on Apr 12, 2026

Support 2-argument ceil(value, scale) for Spark

enhancementNew feature or requestNew feature or request

good first issueGood for newcomersGood for newcomers

spark

Status: Open.

Feature

#21560 In apache/datafusion;

· comphead opened on Apr 11, 2026

Cache parquet pruning setup across files with the same physical schema

performanceMake DataFusion fasterMake DataFusion faster

Status: Open.

#21554 In apache/datafusion;

· alamb opened on Apr 11, 2026

Revisit ExternalSorter sort strategy and sort_in_place_threshold_bytes

Status: Open.

#21543 In apache/datafusion;

· mbutrovich opened on Apr 10, 2026

Generalize StringViewArrayBuilder / StringArrayBuilder, use more broadly

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#21539 In apache/datafusion;

· neilconway opened on Apr 10, 2026

Optimize NULL handling in StringViewArrayBuilder

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#21537 In apache/datafusion;

· neilconway opened on Apr 10, 2026