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[FEA] Rename build/probe to right/left across join APIs

feature requestNew feature or requestNew feature or request

Status: Open.

#22400 In rapidsai/cudf;

· PointKernel opened on May 6, 2026

[FEA] JNI bindings for SUM_WITH_OVERFLOW aggregation

feature requestNew feature or requestNew feature or request

JavaAffects Java cuDF API.Affects Java cuDF API.

Status: Open.

#22398 In rapidsai/cudf;

· mythrocks opened on May 6, 2026

MERGE_M2 returns NaN when first partial has an extreme finite mean

bugSomething isn't workingSomething isn't working

libcudfAffects libcudf (C++/CUDA) code.Affects libcudf (C++/CUDA) code.

Needs TriageNeed team to review and classifyNeed team to review and classify

Status: Open.

#22391 In rapidsai/cudf;

· wjxiz1992 opened on May 6, 2026

[BUG] cudf-polars error in a MIG sandbox

bugSomething isn't workingSomething isn't working

Status: Open.

#22388 In rapidsai/cudf;

· mlubin opened on May 6, 2026

[BUG] cudf-polars thread-offload uses hardware-determined number of threads

bugSomething isn't workingSomething isn't working

Status: Open.

#22379 In rapidsai/cudf;

· wence- opened on May 5, 2026

[BUG][cudf-polars] Multi-rank Union (and pl.concat) interleaves child outputs across ranks, breaking row order

bugSomething isn't workingSomething isn't working

Status: Open.

#22376 In rapidsai/cudf;

· madsbk opened on May 5, 2026

[BUG] Higher memory usage when reading parquet in 26.04 vs 26.02

bugSomething isn't workingSomething isn't working

Status: Open.

#22367 In rapidsai/cudf;

· ayushdg opened on May 4, 2026

[BUG] cudf-polars streaming-mode broadcast bug

bugSomething isn't workingSomething isn't working

Status: Open.

#22360 In rapidsai/cudf;

· mlubin opened on May 3, 2026

[JAVA] ColumnWriterOptions.withBinary(name, nullable, parquetFieldId) places the field id on the wrong column; no public way to set parquetFieldId/isBinary on a list

JavaAffects Java cuDF API.Affects Java cuDF API.

Status: Open.

#22347 In rapidsai/cudf;

· res-life opened on Apr 30, 2026

[FEA] Change cudf_polars testing assertion function to require an engine argument.

cudf-polarsIssues specific to cudf-polarsIssues specific to cudf-polars

feature requestNew feature or requestNew feature or request

Status: Open.

#22346 In rapidsai/cudf;

· mroeschke opened on Apr 30, 2026

[BUG] Validate TPC-DS Q8

bugSomething isn't workingSomething isn't working

Status: Open.

#22317 In rapidsai/cudf;

· Matt711 opened on Apr 28, 2026

[FEA][Story] Support ingest of Parquet VARIANT columns

cuIOcuIO issuecuIO issue

feature requestNew feature or requestNew feature or request

libcudfAffects libcudf (C++/CUDA) code.Affects libcudf (C++/CUDA) code.

PythonAffects Python cuDF API.Affects Python cuDF API.

Status: Open.

#22312 In rapidsai/cudf;

· vuule opened on Apr 27, 2026