Related Issues (20)
- Possible deprecated use of .year in "aggregations" HOT 3
- No module named `polars.testing` HOT 3
- JoinArgs.suffix doesn't work when using LazyFrame.join HOT 1
- Harmonize Expr.where with Expr.filter, or deprecate it HOT 2
- Not skipping parquets correctly when using `is_in`
- PanicError in read_ndjson and polars.str.json_decode with empty struct HOT 3
- Option::unwrap() panic when loading Parquet files with non-matching schemas as a list of files HOT 10
- `read_parquet([files], ..., use_pyarrow=False)` fails when reading multiple files with different schema HOT 1
- Add `__str__` implementations for DataTypes with a more compact version of `__repr__` HOT 12
- Don't coalesce joining column by default in left join? HOT 7
- map_groups has inconsistent behavior between lazy and eager. It should also accept expressions. HOT 1
- Make head(), tail() and limit() return the same number of rows for Expr, Series, DataFrame and LazyFrame HOT 9
- Allow strptime to work with Hour but not minute (ie. assume 0) HOT 2
- `outer_coalesce` drops left column with same name of `right_on` and different output for same data with different column names HOT 1
- selectors not initilized when using python v 3.10 and above HOT 2
- parallel read multiple large arrow file (300mb each) with read_ipc and concat it HOT 1
- Implement `maintain_order=False` in `pivot`, or deprecate the `maintain_order` argument
- optional `file_index:int` column when using `source:list[str] | list[Path]` with `scan_*` HOT 2
- can write empty parquet but not read HOT 2
- OOM with simple scan_csv + sink_parquet HOT 9
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