rust-polars-v0.23.0

pola-rs/polars

版本发布时间: 2022-08-04 20:02:04

pola-rs/polars最新发布版本:py-1.8.2(2024-09-25 04:10:38)

What's Changed

respect ipc column ordering by @ritchie46 in https://github.com/pola-rs/polars/pull/3591
zfill expression by @ritchie46 in https://github.com/pola-rs/polars/pull/3593
Patch release by @ritchie46 in https://github.com/pola-rs/polars/pull/3595
Fix TOML typos by @ryanrussell in https://github.com/pola-rs/polars/pull/3598
Anonymous scan lazyframe by @universalmind303 in https://github.com/pola-rs/polars/pull/3561
ljust and rjust expressions by @ritchie46 in https://github.com/pola-rs/polars/pull/3603
cast string to categorical in 'is_in' by @ritchie46 in https://github.com/pola-rs/polars/pull/3606
python data type units by @ritchie46 in https://github.com/pola-rs/polars/pull/3609
unset sorted metadata on append by @ritchie46 in https://github.com/pola-rs/polars/pull/3610
feat(nodejs): scan json by @universalmind303 in https://github.com/pola-rs/polars/pull/3611
Expand regex function input by @ritchie46 in https://github.com/pola-rs/polars/pull/3613
node 0.5.3 release by @universalmind303 in https://github.com/pola-rs/polars/pull/3612
improve when then otherwise for lists by @ritchie46 in https://github.com/pola-rs/polars/pull/3614
python polars 0.13.44 by @ritchie46 in https://github.com/pola-rs/polars/pull/3615
Fix mode for multiple modes by @GregoryBL in https://github.com/pola-rs/polars/pull/3566
fix empty list edge case by @ritchie46 in https://github.com/pola-rs/polars/pull/3621
fix invalid concat dtype by @ritchie46 in https://github.com/pola-rs/polars/pull/3622
respect n_rows by @ritchie46 in https://github.com/pola-rs/polars/pull/3624
Python: scan_ipc/parquet can scan from fsspec sources e.g. s3. by @ritchie46 in https://github.com/pola-rs/polars/pull/3626
Fix Series init (as pl.Object dtype) from mixed-type input and extend test coverage by @alexander-beedie in https://github.com/pola-rs/polars/pull/3627
restrict parallel branches in lazy Union by @ritchie46 in https://github.com/pola-rs/polars/pull/3628
native exp expression by @ritchie46 in https://github.com/pola-rs/polars/pull/3629
python dict parallel dataframe creation by @ritchie46 in https://github.com/pola-rs/polars/pull/3630
Enhanced column typedef/inference support for DataFrame init by @alexander-beedie in https://github.com/pola-rs/polars/pull/3633
fix row count file projection pushdown by @ritchie46 in https://github.com/pola-rs/polars/pull/3635
fix list concat by @ritchie46 in https://github.com/pola-rs/polars/pull/3636
rust publish makefile by @ritchie46 in https://github.com/pola-rs/polars/pull/3637
improve explode of empty lists by @ritchie46 in https://github.com/pola-rs/polars/pull/3638
Improve numpy ufunc support. fixes: #3228 by @ghuls in https://github.com/pola-rs/polars/pull/3583
Update various python build requirements. by @ghuls in https://github.com/pola-rs/polars/pull/3641
is_in for struct dtype by @ritchie46 in https://github.com/pola-rs/polars/pull/3639
Update black and change some code so is sees it as a call chain. by @ghuls in https://github.com/pola-rs/polars/pull/3645
concat list determine supertype by @ritchie46 in https://github.com/pola-rs/polars/pull/3649
update arrow by @ritchie46 in https://github.com/pola-rs/polars/pull/3650
Parallel csv writer by @ritchie46 in https://github.com/pola-rs/polars/pull/3652
fix groups state in complex aggregation by @ritchie46 in https://github.com/pola-rs/polars/pull/3656
Rust Comment Readability Fixes by @ryanrussell in https://github.com/pola-rs/polars/pull/3662
Add Expr.reverse() Python API example by @cnpryer in https://github.com/pola-rs/polars/pull/3660
Added StringCache Python API example by @cnpryer in https://github.com/pola-rs/polars/pull/3659
improve dtype selection by @ritchie46 in https://github.com/pola-rs/polars/pull/3664
accept regex in filter by @ritchie46 in https://github.com/pola-rs/polars/pull/3666
python: improve html render by @ritchie46 in https://github.com/pola-rs/polars/pull/3667
Python: infer_schema_len arg to from_dicts by @ritchie46 in https://github.com/pola-rs/polars/pull/3669
Add LICENSE link to py-polars by @gyscos in https://github.com/pola-rs/polars/pull/3674
python: fix and test globbing by @ritchie46 in https://github.com/pola-rs/polars/pull/3675
python polars 0.13.45 by @ritchie46 in https://github.com/pola-rs/polars/pull/3676
Add useful example for pl.StringCache(). by @ghuls in https://github.com/pola-rs/polars/pull/3677
Fix StringCache docstring typo by @cnpryer in https://github.com/pola-rs/polars/pull/3678
Fix polars.Expr.apply() Python API docs text by @cnpryer in https://github.com/pola-rs/polars/pull/3661
Anonymous scan enhancements & cleanup by @universalmind303 in https://github.com/pola-rs/polars/pull/3657
add pyarrow install to quickstart setup by @ritchie46 in https://github.com/pola-rs/polars/pull/3682
fix oob in sorted groupby by @ritchie46 in https://github.com/pola-rs/polars/pull/3681
fix branch supertypes by @ritchie46 in https://github.com/pola-rs/polars/pull/3683
fix cargo.toml for docs.rs by @ritchie46 in https://github.com/pola-rs/polars/pull/3684
python polars 0.13.46 by @ritchie46 in https://github.com/pola-rs/polars/pull/3686
ndjson reader complex types support by @universalmind303 in https://github.com/pola-rs/polars/pull/3665
fix groupby aggregation on empty df by @ritchie46 in https://github.com/pola-rs/polars/pull/3688
Nodejs groupbyrolling by @universalmind303 in https://github.com/pola-rs/polars/pull/3670
Add pl.Expr.hash Python example by @cnpryer in https://github.com/pola-rs/polars/pull/3679
Adding 'line-height' at 95% to df _html.py print by @LVG77 in https://github.com/pola-rs/polars/pull/3691
unique counts for logical types by @ritchie46 in https://github.com/pola-rs/polars/pull/3694
Update arrow and prepare for mutable arithmetics by @ritchie46 in https://github.com/pola-rs/polars/pull/3695
Improve lit agg by @ritchie46 in https://github.com/pola-rs/polars/pull/3702
panic on invalid groupby rolling input by @ritchie46 in https://github.com/pola-rs/polars/pull/3703
docs: Readability improvements in py-polars by @ryanrussell in https://github.com/pola-rs/polars/pull/3700
docs: polars-lazy readability improvements by @ryanrussell in https://github.com/pola-rs/polars/pull/3701
Python: parallel concat df by @gunjunlee in https://github.com/pola-rs/polars/pull/3671
fix ipc column order by @ritchie46 in https://github.com/pola-rs/polars/pull/3706
nodejs release by @universalmind303 in https://github.com/pola-rs/polars/pull/3698
add coc by @ritchie46 in https://github.com/pola-rs/polars/pull/3712
inplace arithmetic by @ritchie46 in https://github.com/pola-rs/polars/pull/3709
format empty df by @ritchie46 in https://github.com/pola-rs/polars/pull/3719
Add typing overloads for DataFrame.hstack() by @adamgreg in https://github.com/pola-rs/polars/pull/3697
Add Series to DataFrame.with_columns() argument annotation by @adamgreg in https://github.com/pola-rs/polars/pull/3696
fix rolling groupby ordering with 'by' argument by @ritchie46 in https://github.com/pola-rs/polars/pull/3720
allow literal as aggregation by @ritchie46 in https://github.com/pola-rs/polars/pull/3722
Improve performance of categorical casting by @ritchie46 in https://github.com/pola-rs/polars/pull/3724
Add flag to allow str.contains to search for string literals (#3711) by @alexander-beedie in https://github.com/pola-rs/polars/pull/3718
fix join negative keys by @ritchie46 in https://github.com/pola-rs/polars/pull/3730
fix arr.get() offsets by @ritchie46 in https://github.com/pola-rs/polars/pull/3731
update arrow by @ritchie46 in https://github.com/pola-rs/polars/pull/3732
fix from_pandas object null array by @ritchie46 in https://github.com/pola-rs/polars/pull/3733
python polars 0.13.47 by @ritchie46 in https://github.com/pola-rs/polars/pull/3734
Replace OOB slice indexing with spare_capacity_mut by @saethlin in https://github.com/pola-rs/polars/pull/3737
pow fast paths by @ritchie46 in https://github.com/pola-rs/polars/pull/3738
Simplify contains check that opts-in to contains_literal fast-path by @alexander-beedie in https://github.com/pola-rs/polars/pull/3736
fix aritmetic bug introduced in #3709 by @ritchie46 in https://github.com/pola-rs/polars/pull/3741
check nan in sort by single column by @ritchie46 in https://github.com/pola-rs/polars/pull/3742
python fix concat by @ritchie46 in https://github.com/pola-rs/polars/pull/3743
patch python polars 0.13.48 by @ritchie46 in https://github.com/pola-rs/polars/pull/3744
ternary literal predicates by @ritchie46 in https://github.com/pola-rs/polars/pull/3747
python polars 0.13.49 by @ritchie46 in https://github.com/pola-rs/polars/pull/3748
unset sorted on take by @ritchie46 in https://github.com/pola-rs/polars/pull/3756
reexport polars for extension libraries by @universalmind303 in https://github.com/pola-rs/polars/pull/3760
add global pl by @universalmind303 in https://github.com/pola-rs/polars/pull/3763
arg_where expression by @ritchie46 in https://github.com/pola-rs/polars/pull/3757
update arrow by @ritchie46 in https://github.com/pola-rs/polars/pull/3762
python lhs power and broadcast by @ritchie46 in https://github.com/pola-rs/polars/pull/3768
allow regex expansion in binary/ternary expressions by @ritchie46 in https://github.com/pola-rs/polars/pull/3769
str.ends_with/ str.starts_with by @ritchie46 in https://github.com/pola-rs/polars/pull/3770
fix bug in agg projections and init tpch schema tests by @ritchie46 in https://github.com/pola-rs/polars/pull/3771
always include offset in groupby_dynamic by @ritchie46 in https://github.com/pola-rs/polars/pull/3779
Cache file reads (tpch 2/7) ~5% faster by @ritchie46 in https://github.com/pola-rs/polars/pull/3774
python fix arr.contains type by @ritchie46 in https://github.com/pola-rs/polars/pull/3782
improve predicate combination and schema state by @ritchie46 in https://github.com/pola-rs/polars/pull/3788
fix duration computation by @ritchie46 in https://github.com/pola-rs/polars/pull/3790
Update arrow2 to support IPC Stream Reading with projections by @joshuataylor in https://github.com/pola-rs/polars/pull/3793
Some API alignment (missing funcs) between DataFrame, LazyFrame, and Series by @alexander-beedie in https://github.com/pola-rs/polars/pull/3791
Docs: sort entries within subsections by @alexander-beedie in https://github.com/pola-rs/polars/pull/3794
csv don't skip delimiter in whitespace trimming by @ritchie46 in https://github.com/pola-rs/polars/pull/3796
don't copy the sorted flag on many operations by @ritchie46 in https://github.com/pola-rs/polars/pull/3795
csv don't skip trailing delimiters when infering schema. by @ghuls in https://github.com/pola-rs/polars/pull/3799
Allow date_range to produce date ranges as well as datetime by @alexander-beedie in https://github.com/pola-rs/polars/pull/3798
quarter expression by @ritchie46 in https://github.com/pola-rs/polars/pull/3797
Update rustc to 2022-06-22 by @ritchie46 in https://github.com/pola-rs/polars/pull/3801
Fix Node installation instructions by @Smittyvb in https://github.com/pola-rs/polars/pull/3804
python polars 0.13.50 by @ritchie46 in https://github.com/pola-rs/polars/pull/3802
rolling groupby fix index column output order by @ritchie46 in https://github.com/pola-rs/polars/pull/3806
Add support for IPC Streaming Read/Write by @joshuataylor in https://github.com/pola-rs/polars/pull/3783
chore: chunked_array readability improvements by @ryanrussell in https://github.com/pola-rs/polars/pull/3810
Add serde feature to field to fix serde feature by @joshuataylor in https://github.com/pola-rs/polars/pull/3808
fix join asof on floats by @ritchie46 in https://github.com/pola-rs/polars/pull/3812
chore: /polars/polars-core/src/frame/ readability by @ryanrussell in https://github.com/pola-rs/polars/pull/3813
Fixing small typos in docs by @thatlittleboy in https://github.com/pola-rs/polars/pull/3811
fix join asof tolerance by @ritchie46 in https://github.com/pola-rs/polars/pull/3816
docs: use quotes in pip install instruction by @thatlittleboy in https://github.com/pola-rs/polars/pull/3820
Improve parquet reading performance ~35-40% by @ritchie46 in https://github.com/pola-rs/polars/pull/3821
from anyvalue for small integers by @ritchie46 in https://github.com/pola-rs/polars/pull/3826
add date offset by @ritchie46 in https://github.com/pola-rs/polars/pull/3827
fix sorted unique by @ritchie46 in https://github.com/pola-rs/polars/pull/3837
fix ternary groupby agg_list/not_aggregated combination by @ritchie46 in https://github.com/pola-rs/polars/pull/3835
don't parallelize upsample by @ritchie46 in https://github.com/pola-rs/polars/pull/3836
python fix time divide by zero by @ritchie46 in https://github.com/pola-rs/polars/pull/3838
Improve map/apply docstrings by @braaannigan in https://github.com/pola-rs/polars/pull/3750
don't cache in-expression window functions by @ritchie46 in https://github.com/pola-rs/polars/pull/3840
Hypothesis testing framework integrations for Polars by @alexander-beedie in https://github.com/pola-rs/polars/pull/3842
docs: Improve expr.string documentation by @thatlittleboy in https://github.com/pola-rs/polars/pull/3841
make hypothesis optional and don't fail if not installed by @ritchie46 in https://github.com/pola-rs/polars/pull/3849
update arrow by @ritchie46 in https://github.com/pola-rs/polars/pull/3848
python: fix time conversion by @ritchie46 in https://github.com/pola-rs/polars/pull/3851
Make frame/series asserts more resilient against integer overflow by @alexander-beedie in https://github.com/pola-rs/polars/pull/3850
parquet: allow writing smaller row groups by @ritchie46 in https://github.com/pola-rs/polars/pull/3852
python polars 0.13.51 by @ritchie46 in https://github.com/pola-rs/polars/pull/3854
allow branching null with struct dtype by @ritchie46 in https://github.com/pola-rs/polars/pull/3856
Address distinction between DataType and DataType() by @alexander-beedie in https://github.com/pola-rs/polars/pull/3857
Deprecate df/ldf argument to .join by @thomasaarholt in https://github.com/pola-rs/polars/pull/3855
null_probability functionality for dataframes/series test strategies. by @alexander-beedie in https://github.com/pola-rs/polars/pull/3860
Modern style type hints by @stinodego in https://github.com/pola-rs/polars/pull/3863
Concise empty class syntax by @stinodego in https://github.com/pola-rs/polars/pull/3864
fix groups after take expression by @ritchie46 in https://github.com/pola-rs/polars/pull/3881
fix predicate pushdown in union + count expression by @ritchie46 in https://github.com/pola-rs/polars/pull/3882
add join/union branch in window cache keys by @ritchie46 in https://github.com/pola-rs/polars/pull/3884
Fast/cheap empty clone ops by @alexander-beedie in https://github.com/pola-rs/polars/pull/3883
parquet read: fix remaining_rows counter by @ritchie46 in https://github.com/pola-rs/polars/pull/3887
Parquet writing: reduce heap allocs by @ritchie46 in https://github.com/pola-rs/polars/pull/3879
Negative-indexing support for additional functions, and frame-level take_every by @alexander-beedie in https://github.com/pola-rs/polars/pull/3888
Make numpy an optional requirement by @stinodego in https://github.com/pola-rs/polars/pull/3861
Address deprecation warnings while running pytest by @stinodego in https://github.com/pola-rs/polars/pull/3889
Fix reading of gzipped CSV files. Fixes: #3895 by @ghuls in https://github.com/pola-rs/polars/pull/3896
Relocate hypothesis unit tests to parallel tests_parametric dir by @alexander-beedie in https://github.com/pola-rs/polars/pull/3899
Assign dtypes to expected columns when dtypes is a list and column se… by @ghuls in https://github.com/pola-rs/polars/pull/3901
docs: fix link to series method in DataFrame by @duskmoon314 in https://github.com/pola-rs/polars/pull/3897
docs: Improve py-polars docs by @thatlittleboy in https://github.com/pola-rs/polars/pull/3873
Complete pythonic slice support (inc. negative indexing/stride) for DataFrame and Series by @alexander-beedie in https://github.com/pola-rs/polars/pull/3904
Update docstring outputs by @ghuls in https://github.com/pola-rs/polars/pull/3912
Make embedded CSV test strings easier to read. by @ghuls in https://github.com/pola-rs/polars/pull/3907
Quiet an unnecessary warning (tests), and minor optimisation for slices with negative stride by @alexander-beedie in https://github.com/pola-rs/polars/pull/3913
fix dataframe explode with empty lists by @ritchie46 in https://github.com/pola-rs/polars/pull/3916
Implement pow/rpow for Series by @stinodego in https://github.com/pola-rs/polars/pull/3908
Fix Series __setitem__ and take by @stinodego in https://github.com/pola-rs/polars/pull/3910
fix negative offset in groupby_rolling by @ritchie46 in https://github.com/pola-rs/polars/pull/3918
make string formatting configurable by @ritchie46 in https://github.com/pola-rs/polars/pull/3919
Expr docstrings by @braaannigan in https://github.com/pola-rs/polars/pull/3871
parquet: parallelize over row groups ~3x by @ritchie46 in https://github.com/pola-rs/polars/pull/3924
Don't unwrap IPC Stream, instead use ? to not panic by @joshuataylor in https://github.com/pola-rs/polars/pull/3927
Corrected .select type hint to Sequence[str, Expr] by @thomasaarholt in https://github.com/pola-rs/polars/pull/3931
add impl from anyvalue for literal by @savente93 in https://github.com/pola-rs/polars/pull/3921
update arrow: ipc limit and reduce categorical-> dictionary bound checks by @ritchie46 in https://github.com/pola-rs/polars/pull/3926
fix window expression case by @ritchie46 in https://github.com/pola-rs/polars/pull/3937
fix oob panic on expand_at_index and series from pyarrow chunkedarray by @ritchie46 in https://github.com/pola-rs/polars/pull/3938
block equality/ordering based predicates on null producing joins by @ritchie46 in https://github.com/pola-rs/polars/pull/3939
Extended with_columns to allow **kwargs style named expressions by @alexander-beedie in https://github.com/pola-rs/polars/pull/3917
upcast float16 to float32 by @ritchie46 in https://github.com/pola-rs/polars/pull/3940
python: fix already mutable borrowed append by @ritchie46 in https://github.com/pola-rs/polars/pull/3943
Fixed assert_frame_equal and assert_series_equal for NaN values by @alexander-beedie in https://github.com/pola-rs/polars/pull/3941
Add from_numpy constructor by @stinodego in https://github.com/pola-rs/polars/pull/3944
Fix Pandas date_range warnings in tests by @zundertj in https://github.com/pola-rs/polars/pull/3945
fix ipc ordering by @ritchie46 in https://github.com/pola-rs/polars/pull/3947
Remove "import polars as pl" from docstrings by @zundertj in https://github.com/pola-rs/polars/pull/3948
[docs] improve python polars documentation by @thatlittleboy in https://github.com/pola-rs/polars/pull/3954
Modern style type hints for the test suite by @stinodego in https://github.com/pola-rs/polars/pull/3949
Fixed most See Also docstring formatting, quietened the last warnings coming from doctests by @alexander-beedie in https://github.com/pola-rs/polars/pull/3932
python: loossen truncate sorted restriction in docstring by @ritchie46 in https://github.com/pola-rs/polars/pull/3956
groupby apply: use inner type to infer dtype by @ritchie46 in https://github.com/pola-rs/polars/pull/3955
python polars 0.13.52 by @ritchie46 in https://github.com/pola-rs/polars/pull/3957
Fix pytest warning by @stinodego in https://github.com/pola-rs/polars/pull/3962
Update README.md by @cxtruong70 in https://github.com/pola-rs/polars/pull/3959
implicit datelike string comparison warning by @ritchie46 in https://github.com/pola-rs/polars/pull/3967
fix count union predicate by @ritchie46 in https://github.com/pola-rs/polars/pull/3969
docs: conventions, mwe and docstring fixes by @thatlittleboy in https://github.com/pola-rs/polars/pull/3973
Pythonic slice support for LazyFrame (efficient computation paths only) by @alexander-beedie in https://github.com/pola-rs/polars/pull/3970
add from_numpy to docs by @thatlittleboy in https://github.com/pola-rs/polars/pull/3976
use bitflags crate by @ritchie46 in https://github.com/pola-rs/polars/pull/3978
fix accidentally slow cross join by @ritchie46 in https://github.com/pola-rs/polars/pull/3980
ensure main lazyframe gets file cache opt state by @ritchie46 in https://github.com/pola-rs/polars/pull/3981
chore(tests): small readability fixes by @ryanrussell in https://github.com/pola-rs/polars/pull/3989
Remove unnessary imports by @zundertj in https://github.com/pola-rs/polars/pull/3988
Add support for loading a collection of parquet files by @andrei-ionescu in https://github.com/pola-rs/polars/pull/3894
improve from dictionary -> categorical by @ritchie46 in https://github.com/pola-rs/polars/pull/3996
fix col aggregation schema and ternary on empty series by @ritchie46 in https://github.com/pola-rs/polars/pull/3995
release memory on 0% selectivity by @ritchie46 in https://github.com/pola-rs/polars/pull/4000
col(dtypes).exclude() by @ritchie46 in https://github.com/pola-rs/polars/pull/4001
fix explode offsets for empty lists by @ritchie46 in https://github.com/pola-rs/polars/pull/4005
reduce peak memory of reading parquet by row groups ~-22% by @ritchie46 in https://github.com/pola-rs/polars/pull/4006
fix rolling groupby with negative windows by @ritchie46 in https://github.com/pola-rs/polars/pull/4010
fix: Lazyframe::from(lp) #3877 by @universalmind303 in https://github.com/pola-rs/polars/pull/4012
Date encode types by @ritchie46 in https://github.com/pola-rs/polars/pull/4013
csv: allow multiple null values by @ritchie46 in https://github.com/pola-rs/polars/pull/4016
python polars 0.13.53 by @ritchie46 in https://github.com/pola-rs/polars/pull/4017
Improve lazy state struct by @ritchie46 in https://github.com/pola-rs/polars/pull/4008
python: fix pyarrow imports by @ritchie46 in https://github.com/pola-rs/polars/pull/4025
fix lazy schema by @ritchie46 in https://github.com/pola-rs/polars/pull/4027
Align the exclude docstrings and annotation by @thatlittleboy in https://github.com/pola-rs/polars/pull/4020
docs: add mwe and internal links by @thatlittleboy in https://github.com/pola-rs/polars/pull/4019
impl explode for nested lists by @ritchie46 in https://github.com/pola-rs/polars/pull/4028
allow joining on expressions by @ritchie46 in https://github.com/pola-rs/polars/pull/4029
allow nulls last in sort by expressions by @ritchie46 in https://github.com/pola-rs/polars/pull/4030
python polars 0.13.54 by @ritchie46 in https://github.com/pola-rs/polars/pull/4031
feat: implement contains for DataFrame and LazyFrame by @thatlittleboy in https://github.com/pola-rs/polars/pull/4035
Remove py-polars legacy package by @stinodego in https://github.com/pola-rs/polars/pull/4037
Native trigonometry functions by @stinodego in https://github.com/pola-rs/polars/pull/4034
parquet: stop reading when slice is reached by @ritchie46 in https://github.com/pola-rs/polars/pull/4046
fix cross join by @ritchie46 in https://github.com/pola-rs/polars/pull/4045
More trigonometry by @stinodego in https://github.com/pola-rs/polars/pull/4047
Update flake8 settings by @stinodego in https://github.com/pola-rs/polars/pull/4038
pivot: fix categorical logicaltype by @ritchie46 in https://github.com/pola-rs/polars/pull/4048
Update mypy settings by @stinodego in https://github.com/pola-rs/polars/pull/4049
fix: reproducible Expr.hash by @thatlittleboy in https://github.com/pola-rs/polars/pull/4033
Fix constructor orient type hint by @stinodego in https://github.com/pola-rs/polars/pull/3961
Improve coverage report settings by @stinodego in https://github.com/pola-rs/polars/pull/4039
Added literal param to string-replace functions, optimized replace performance in small-string regime (30-80% faster) by @alexander-beedie in https://github.com/pola-rs/polars/pull/4057
parquet: low memory arg by @ritchie46 in https://github.com/pola-rs/polars/pull/4050
Upgrade Windows 10 tests, benchmark and doc jobs to Python3.10 by @zundertj in https://github.com/pola-rs/polars/pull/4059
Revert "Upgrade Windows 10 tests, benchmark and doc jobs to Python3.10" by @ritchie46 in https://github.com/pola-rs/polars/pull/4062
fill_null expr: ensure minimal supertype by @ritchie46 in https://github.com/pola-rs/polars/pull/4061
Fix connector-x integration for PostgreSQL by @valxv in https://github.com/pola-rs/polars/pull/4063
node updates by @universalmind303 in https://github.com/pola-rs/polars/pull/3984
python polars 0.13.55 by @ritchie46 in https://github.com/pola-rs/polars/pull/4064
Handle wrong input for orient argument by @stinodego in https://github.com/pola-rs/polars/pull/4065
Turn on doctests; fix wrong examples by @zundertj in https://github.com/pola-rs/polars/pull/4060
Mypy warn redundant casts by @zundertj in https://github.com/pola-rs/polars/pull/4055
Add mypy optional error codes by @stinodego in https://github.com/pola-rs/polars/pull/4054
recursively convert arrow logical types in to_arrow by @ritchie46 in https://github.com/pola-rs/polars/pull/4067
improve unique performance by @ritchie46 in https://github.com/pola-rs/polars/pull/4070
Small formatting fixes by @stinodego in https://github.com/pola-rs/polars/pull/4071
[mypy] Add error codes by @stinodego in https://github.com/pola-rs/polars/pull/4072
reduce contention of global string cache: >4x performance improvement by @ritchie46 in https://github.com/pola-rs/polars/pull/4078
Add lazy() method to LazyFrame by @zundertj in https://github.com/pola-rs/polars/pull/4077
[flake8] Enable flake8-bugbear extension by @stinodego in https://github.com/pola-rs/polars/pull/4073
csv: allow reading with different eol character by @ritchie46 in https://github.com/pola-rs/polars/pull/4080
docs: rework some MWE and minor formatting fixes by @thatlittleboy in https://github.com/pola-rs/polars/pull/4082
Upgrade maturin to 0.13.0 by @messense in https://github.com/pola-rs/polars/pull/4086
dataframe display: use POLARS_FMT_STR_LEN by @ritchie46 in https://github.com/pola-rs/polars/pull/4088
don't allow comparing local categoricals by @ritchie46 in https://github.com/pola-rs/polars/pull/4087
implement list hash for simply nested lists by @ritchie46 in https://github.com/pola-rs/polars/pull/4090
improve error on missing column access by @ritchie46 in https://github.com/pola-rs/polars/pull/4095
value_counts add sorted argument by @ritchie46 in https://github.com/pola-rs/polars/pull/4094
from_rows improve schema correctness by @ritchie46 in https://github.com/pola-rs/polars/pull/4097
Cache length of ChunkedArray. by @ritchie46 in https://github.com/pola-rs/polars/pull/4105
fix explode with empty lists by @ritchie46 in https://github.com/pola-rs/polars/pull/4113
fix so rank by @ritchie46 in https://github.com/pola-rs/polars/pull/4114
fix explode for sliced arrays by @ritchie46 in https://github.com/pola-rs/polars/pull/4115
python: to_numpy use first type as supertype by @ritchie46 in https://github.com/pola-rs/polars/pull/4116
python: remove css line for vscode by @ritchie46 in https://github.com/pola-rs/polars/pull/4117
Remove read_excel hacks by @cnpryer in https://github.com/pola-rs/polars/pull/4081
python allow set by string by @ritchie46 in https://github.com/pola-rs/polars/pull/4118
fill_nan preserve name by @ritchie46 in https://github.com/pola-rs/polars/pull/4119
Fix prefix/suffix docstrings. by @ghuls in https://github.com/pola-rs/polars/pull/4122
allow summing of duration in selection context by @ritchie46 in https://github.com/pola-rs/polars/pull/4124
python: improve setitem by @ritchie46 in https://github.com/pola-rs/polars/pull/4121
python polars 0.13.56 by @ritchie46 in https://github.com/pola-rs/polars/pull/4127
Assert deprecation warning on DataFrame.setitem in tests by @zundertj in https://github.com/pola-rs/polars/pull/4126
Run PR workflows on definition changes by @zundertj in https://github.com/pola-rs/polars/pull/4125
fix 'fatal: unsafe repository' in python build by @ritchie46 in https://github.com/pola-rs/polars/pull/4129
Nested dict by @ritchie46 in https://github.com/pola-rs/polars/pull/4131
improve performance of building global string cache from arrow dictio… by @ritchie46 in https://github.com/pola-rs/polars/pull/4132
csv writer quote if string contains new line char by @ritchie46 in https://github.com/pola-rs/polars/pull/4134
fix explode edge cases by @ritchie46 in https://github.com/pola-rs/polars/pull/4133
add pl.cut utility by @ritchie46 in https://github.com/pola-rs/polars/pull/4137
python polars 0.13.57 by @ritchie46 in https://github.com/pola-rs/polars/pull/4141
Mypy disallow untyped calls by @ritchie46 in https://github.com/pola-rs/polars/pull/4140
Improve re-raises of Exceptions by @zundertj in https://github.com/pola-rs/polars/pull/4142
pivot fix categorical index by @ritchie46 in https://github.com/pola-rs/polars/pull/4149
Fix typo by @stinodego in https://github.com/pola-rs/polars/pull/4146
Wrap long strings by @stinodego in https://github.com/pola-rs/polars/pull/4144
Fix Python line lengths to 88 characters by @stinodego in https://github.com/pola-rs/polars/pull/4152
add is_in for categoricals by @ritchie46 in https://github.com/pola-rs/polars/pull/4153
python 0.13.58 by @ritchie46 in https://github.com/pola-rs/polars/pull/4154
Docstring lints & improvements by @stinodego in https://github.com/pola-rs/polars/pull/4155
pivot: fix logical type of multiple indexes by @ritchie46 in https://github.com/pola-rs/polars/pull/4159
more tests by @ritchie46 in https://github.com/pola-rs/polars/pull/4163
Use latest arrow2 to support latest nightly rust by @gyscos in https://github.com/pola-rs/polars/pull/4162
Fix invalid inputs for trigonometric functions by @stinodego in https://github.com/pola-rs/polars/pull/4164
update schema in udfs by @ritchie46 in https://github.com/pola-rs/polars/pull/4165
python: expose idx type by @ritchie46 in https://github.com/pola-rs/polars/pull/4167
Improve getitem for Dataframe/Series. by @ghuls in https://github.com/pola-rs/polars/pull/4160
Dataframe equality by @stinodego in https://github.com/pola-rs/polars/pull/4076
Docstring improvements & enable lints by @stinodego in https://github.com/pola-rs/polars/pull/4161
Native implementation of the sign function by @stinodego in https://github.com/pola-rs/polars/pull/4147
Minor docs updates by @stinodego in https://github.com/pola-rs/polars/pull/4173
Validation for groupby arguments by @stinodego in https://github.com/pola-rs/polars/pull/4176
update arrow by @ritchie46 in https://github.com/pola-rs/polars/pull/4177
throw error on schema failure by @ritchie46 in https://github.com/pola-rs/polars/pull/4178
with_columns update on duplicates by @ritchie46 in https://github.com/pola-rs/polars/pull/4179
fold regex expand by @ritchie46 in https://github.com/pola-rs/polars/pull/4181
python: prefer pyarrow when we can memory map the file by @ritchie46 in https://github.com/pola-rs/polars/pull/4182
window functions: sort cached groups if needed by @ritchie46 in https://github.com/pola-rs/polars/pull/4184
reduce supertype match by calling twice/ allow Some(tz)/None supertype by @ritchie46 in https://github.com/pola-rs/polars/pull/4186
Added const empty initializer to DataFrame by @TheDan64 in https://github.com/pola-rs/polars/pull/4187
fix utf8 explode for nulls and empty strings by @ritchie46 in https://github.com/pola-rs/polars/pull/4189
type-coercion: ignore unknown untill replaced by @ritchie46 in https://github.com/pola-rs/polars/pull/4192
python: always use stdlib http reader and improve memmap ipc reader a… by @ritchie46 in https://github.com/pola-rs/polars/pull/4193
slice pushdown for cross joins by @ritchie46 in https://github.com/pola-rs/polars/pull/4194
csv: ignore quoted lines in skip lines by @ritchie46 in https://github.com/pola-rs/polars/pull/4191
Small fixes in type formatting by @stinodego in https://github.com/pola-rs/polars/pull/4195
use native ndjson reader by @ritchie46 in https://github.com/pola-rs/polars/pull/4196
python polars: 0.13.59 by @ritchie46 in https://github.com/pola-rs/polars/pull/4198
Miscellaneous improvements by @matteosantama in https://github.com/pola-rs/polars/pull/4203
Add flake8 extension: comprehensions by @stinodego in https://github.com/pola-rs/polars/pull/4200
Add flake8 extension: simplify by @stinodego in https://github.com/pola-rs/polars/pull/4201
don't use pyarrow read if we have categoricals in the schema by @ritchie46 in https://github.com/pola-rs/polars/pull/4205
python: don't lock gil in arr.contains by @ritchie46 in https://github.com/pola-rs/polars/pull/4210
fix nested struct append by @ritchie46 in https://github.com/pola-rs/polars/pull/4217
use default context for col upstream col expression type by @ritchie46 in https://github.com/pola-rs/polars/pull/4219
ensure weekday starts at 0 by @ritchie46 in https://github.com/pola-rs/polars/pull/4220
python datetime consistency by @ritchie46 in https://github.com/pola-rs/polars/pull/4221
python: improve error by @ritchie46 in https://github.com/pola-rs/polars/pull/4223
Upgrade black, blackdoc, mypy, flake8 by @matteosantama in https://github.com/pola-rs/polars/pull/4209
python: ensure utf8 encoding when writing dot file by @ritchie46 in https://github.com/pola-rs/polars/pull/4225
convert arrow map to list by @ritchie46 in https://github.com/pola-rs/polars/pull/4226
fast path for sorted min/max by @ritchie46 in https://github.com/pola-rs/polars/pull/4228
Set no_implicit_reexport = true in pyproject.toml by @matteosantama in https://github.com/pola-rs/polars/pull/4211
fix and improve rolling_skew by @ritchie46 in https://github.com/pola-rs/polars/pull/4232
ternary expr: validate predicate in groupby context by @ritchie46 in https://github.com/pola-rs/polars/pull/4237
Overload pl.from_arrow type hints by @matteosantama in https://github.com/pola-rs/polars/pull/4236
python: allow horizontal expanding sum by @ritchie46 in https://github.com/pola-rs/polars/pull/4242
improve strictness/consistency of when then otherwise by @ritchie46 in https://github.com/pola-rs/polars/pull/4241
reinstate old ternary behavior as experimental by @ritchie46 in https://github.com/pola-rs/polars/pull/4244
correct dtype for power by @ritchie46 in https://github.com/pola-rs/polars/pull/4246
csv: improve data/datetime/bool overwrite by @ritchie46 in https://github.com/pola-rs/polars/pull/4247
Release rust 0.23.0 by @ritchie46 in https://github.com/pola-rs/polars/pull/4248

New Contributors

@GregoryBL made their first contribution in https://github.com/pola-rs/polars/pull/3566
@gyscos made their first contribution in https://github.com/pola-rs/polars/pull/3674
@LVG77 made their first contribution in https://github.com/pola-rs/polars/pull/3691
@gunjunlee made their first contribution in https://github.com/pola-rs/polars/pull/3671
@saethlin made their first contribution in https://github.com/pola-rs/polars/pull/3737
@joshuataylor made their first contribution in https://github.com/pola-rs/polars/pull/3793
@Smittyvb made their first contribution in https://github.com/pola-rs/polars/pull/3804
@thatlittleboy made their first contribution in https://github.com/pola-rs/polars/pull/3811
@braaannigan made their first contribution in https://github.com/pola-rs/polars/pull/3750
@thomasaarholt made their first contribution in https://github.com/pola-rs/polars/pull/3855
@duskmoon314 made their first contribution in https://github.com/pola-rs/polars/pull/3897
@savente93 made their first contribution in https://github.com/pola-rs/polars/pull/3921
@cxtruong70 made their first contribution in https://github.com/pola-rs/polars/pull/3959
@andrei-ionescu made their first contribution in https://github.com/pola-rs/polars/pull/3894
@valxv made their first contribution in https://github.com/pola-rs/polars/pull/4063
@matteosantama made their first contribution in https://github.com/pola-rs/polars/pull/4203

Full Changelog: https://github.com/pola-rs/polars/compare/rust-polars-v0.22.1...rust-polars-v0.23.0

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查看：2022-08-04发行的版本