Labels

Barrier affecting people with disabilities

Missing user-facing API compared with Polars or DuckDB

Reductions, group_by and grouping

Expression IR, binding, and kernels

DataFrame and Series operations

Testing, packaging, CI, and platforms

CSV, Parquet, and other readers and writers

Join types and join options

Lazy planning and optimization

List column expressions (.list namespace)

Pivot, unpivot, explode, transpose and concat

SQL front end and SQL-only query features

Column storage, buffers, and interchange

String expressions (.str namespace)

Date, datetime, duration and time expressions (.dt namespace)

Logical types, casts, and temporal support

Window, rolling and order-dependent expressions

Something isn't working

Improvements or additions to documentation

DuckDB has this feature

This issue or pull request already exists

New feature or request

Tracking issue spanning several issues

Good for newcomers

Extra attention is needed

This doesn't seem right

Polars has this feature

Further information is requested

Result or default behavior differs from Polars or DuckDB

This will not be worked on