Issues

• [FEA] cudf-polars: use the hybrid scan readers as the default Parquet reader in the streaming executor

  cudf-polarsfeature request
  NVIDIA/cudf#24852 · Filter by author Matt711 opened on Oct 27, 2026
  

• [BUG] cudf-polars: hybrid scan drops every row of Parquet files written with bloom filters

  bugcudf-polars
  NVIDIA/cudf#24851 · Filter by author Matt711 opened on Oct 27, 2026
  

• [BUG] cudf-polars: multi-key sort_by(...).first() in group_by panics (PanicException) with Polars 2.1 instead of falling back to CPU

  bugcudf-polars
  NVIDIA/cudf#24843 · Filter by author Matt711 opened on Oct 26, 2026
  

• [FEA] cudf-polars: support total-order min_by/max_by so sort_by(...).first()/last() stays on the GPU with Polars 2.1

  cudf-polarsfeature request
  NVIDIA/cudf#24842 · Filter by author Matt711 opened on Oct 26, 2026
  

• [BUG] cudf-polars: the error for a failed cast in a scalar sort_by key reads differently from Polars (breaks an upstream test)

  bugcudf-polars
  NVIDIA/cudf#24840 · Filter by author Matt711 opened on Oct 26, 2026

• [BUG] cudf-polars: overflowing temporal casts and arithmetic, and decimal arithmetic, wrap instead of returning null or raising

  bugcudf-polars
  NVIDIA/cudf#24839 · Filter by author Matt711 opened on Oct 26, 2026

• [BUG] Parquet reader decimal_width option does not widen nested decimal columns

  buglibcudf
  NVIDIA/cudf#24838 · Filter by author Matt711 opened on Oct 26, 2026

• [FEA] cudf-polars: detect encrypted parquet files and fall back to CPU

  cudf-polarsfeature request
  NVIDIA/cudf#24837 · Filter by author Matt711 opened on Oct 26, 2026
  

• [BUG] cudf-polars: CSV/NDJSON scans return null for values that do not parse as the requested dtype (Polars raises)

  bugcudf-polars
  NVIDIA/cudf#24836 · Filter by author Matt711 opened on Oct 26, 2026
  

• [BUG] cudf.pandas.read_csv infers a quoted integer as str and breaks an integer-key merge

  ? - Needs Triagebug
  NVIDIA/cudf#24833 · Filter by author asddfl opened on Oct 26, 2026

• [BUG] cudf.pandas drops missing string rows when filtering with ne under Pandas

  ? - Needs Triagebug
  NVIDIA/cudf#24832 · Filter by author asddfl opened on Oct 26, 2026

• [BUG] cudf.pandas drops a nullable boolean row when filtering with True | NA

  ? - Needs Triagebug
  NVIDIA/cudf#24831 · Filter by author asddfl opened on Oct 26, 2026

• [BUG] cudf.pandas fallback fails for duplicate-column selection on strings with missing values

  ? - Needs Triagebug
  NVIDIA/cudf#24829 · Filter by author asddfl opened on Oct 26, 2026

• [BUG] scan_csv(...).slice(offset, n) over several files applies the offset to every file

  bugcudf-polars
  NVIDIA/cudf#24820 · Filter by author Matt711 opened on Oct 25, 2026
  

• [BUG] cudf.concat fails for generators of empty DataFrames while list inputs succeed

  ? - Needs Triagebug
  NVIDIA/cudf#24818 · Filter by author sauravsingla opened on Oct 24, 2026

• [BUG] Parquet writer dictionary encoding stores -0.0 as 0.0 for floating-point columns

  ? - Needs Triagebug
  NVIDIA/cudf#24817 · Filter by author gerashegalov opened on Oct 24, 2026

• [FEA] Support pandas 3.1

  feature requestPython
  NVIDIA/cudf#24812 · Filter by author mroeschke opened on Oct 23, 2026

• [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 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