Issues

• [BUG] Cross join rejects same-named non-key columns with different dtypes

  ? - Needs Triagebug
  NVIDIA/cudf#24802 · Filter by author asddfl opened on Oct 23, 2026

• [BUG] read_parquet and other cuIO functions use freed memory when a host worker task throws

  ? - Needs Triagebug
  NVIDIA/cudf#24790 · Filter by author morristai opened on Oct 22, 2026

• [FEA] Decimal division with a target scale, wide intermediate and round-half-even

  cudf-polarsfeature requestlibcudf
  NVIDIA/cudf#24774 · Filter by author Matt711 opened on Oct 22, 2026

• [FEA] Add a dictionary_scalar type to represent a DICTIONARY32 value

  feature requestlibcudf
  NVIDIA/cudf#24763 · Filter by author mroeschke opened on Oct 21, 2026

• [FEAT] Support the nested loop join that Polars SQL plans for NOT IN (subquery)

  cudf-polarsfeature request
  NVIDIA/cudf#24761 · Filter by author mroeschke opened on Oct 21, 2026
  1

• [FEAT] Support polars.Expr.has_nulls in group_by().agg() in cudf-polars

  cudf-polarsfeature request
  NVIDIA/cudf#24760 · Filter by author mroeschke opened on Oct 21, 2026

• [FEAT] Support (?s) regex from SQL LIKE in cudf-polars

  cudf-polarsfeature request
  NVIDIA/cudf#24759 · Filter by author mroeschke opened on Oct 21, 2026

• [FEAT] Support decimal_div in cudf-polars

  cudf-polarsfeature request
  NVIDIA/cudf#24758 · Filter by author mroeschke opened on Oct 21, 2026

• [Story]: Run all Polars 2.0 TPC-H SQL query benchmarks without error

  bugcudf-polarsimprovement
  NVIDIA/cudf#24756 · Filter by author mroeschke opened on Oct 21, 2026
  

• [BUG] cudf-polars ignores storage_options when reading from S3, so the read fails with "Unsupported URL scheme"

  bugcudf-polars
  NVIDIA/cudf#24741 · Filter by author Matt711 opened on Oct 21, 2026
  1

  

• [BUG] Polars tests hang under the SPMD engine with a small blocksize

  bugcudf-polars
  NVIDIA/cudf#24740 · Filter by author Matt711 opened on Oct 21, 2026
  1

• [FEA] Add non-tumbling group_by_dynamic window support

  cudf-polarsfeature request
  NVIDIA/cudf#24736 · Filter by author rjzamora opened on Oct 21, 2026

• [FEA] Add general tumbling-window support to group_by_dynamic

  cudf-polarsfeature request
  NVIDIA/cudf#24735 · Filter by author rjzamora opened on Oct 21, 2026

• [FEA] Add minimal group_by_dynamic support for NYSE TAQ

  cudf-polarsfeature request
  NVIDIA/cudf#24734 · Filter by author rjzamora opened on Oct 21, 2026

• [FEA] Parquet reader API for selective output of dictionary column

  feature requestlibcudf
  NVIDIA/cudf#24707 · Filter by author mroeschke opened on Oct 20, 2026
  4

• [FEA] [Java] First-class support for DICTIONARY32 columns in cuDF Java bindings

  feature requestJava
  NVIDIA/cudf#24696 · Filter by author mythrocks opened on Oct 19, 2026
  1

• [BUG] cudf-polars cannot translate joins that Polars plans with a fused predicate

  bugcudf-polars
  NVIDIA/cudf#24695 · Filter by author Matt711 opened on Oct 19, 2026
  3

  

• [BUG] cudf-polars strict cast does not raise for out-of-range values

  bugcudf-polars
  NVIDIA/cudf#24694 · Filter by author Matt711 opened on Oct 19, 2026
  

• [BUG] cudf-polars gives wrong results for LEFT/RIGHT join_where and SQL joins with an inequality condition

  bugcudf-polars
  NVIDIA/cudf#24693 · Filter by author Matt711 opened on Oct 19, 2026
  1

  

• [FEA] Support ColumnView.transform with output type other than INT32

  feature requestJava
  NVIDIA/cudf#24684 · Filter by author findepi opened on Oct 19, 2026

• [BUG] Intermittent segfault in multi-rank cudf_streaming tests on arm64 since UCX 1.22 / Open MPI 5.0.11

  ? - Needs Triagebug
  NVIDIA/cudf#24682 · Filter by author thirtiseven opened on Oct 19, 2026

• [BUG] transform_kernel JIT compilation time and PCH footprint

  ? - Needs Triagebug
  Enhancement

  NVIDIA/cudf#24661 · Filter by author lamarrr opened on Oct 17, 2026 · libcudf JIT Enhancements

• [FEA] Investigate CUB tunings for whole column and segmented reductions

  feature requestlibcudfPerformance
  NVIDIA/cudf#24646 · Filter by author wence- opened on Oct 16, 2026
  1

• [FEA] Share the row/field walk between the CSV type inference and parse kernels

  NVIDIA/cudf#24642 · Filter by author thirtiseven opened on Oct 16, 2026

• Support KX NYSE TAQ benchmark in cudf-polars fully on GPU

  cudf-polarsfeature request
  NVIDIA/cudf#24634 · Filter by author pentschev opened on Oct 15, 2026