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Pull requests: pandas-dev/pandas
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Backport PR #54820 on branch 2.1.x (REF: Dispatch ArrowExtensionArray.fillna methods to pad_or_backfill) Arrow pyarrow functionality Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
Backport PR #54794 on branch 2.1.x (Infer string storage based on infer_string option) Arrow pyarrow functionality Strings String extension data type and string data
Backport PR #55052 on branch 2.1.x (Improve error message for StringDtype with invalid storage) Arrow pyarrow functionality Strings String extension data type and string data
Backport PR #55051 on branch 2.1.x (Fix pickle roundtrip for new arrow string dtype) Arrow pyarrow functionality Strings String extension data type and string data
Backport PR #55072 on branch 2.1.x (BUG: dt.tz with ArrowDtype returned string) Arrow pyarrow functionality Timezones Timezone data dtype
Backport PR #55000 on branch 2.1.x (BUG: ArrowDtype raising for fixed size list) Arrow pyarrow functionality
Backport PR #54952 on branch 2.1.x (REGR: Arrow backed objects not propagating exceptions) Arrow pyarrow functionality Error Reporting Incorrect or improved errors from pandas
Backport PR #55365 on branch 2.1.x (BUG: Index.insert raising when inserting None into new string dtype) Arrow pyarrow functionality Strings String extension data type and string data
Backport PR #55366 on branch 2.1.x (BUG: Inserting ndim=0 array does not infer string dtype) Arrow pyarrow functionality Dtype Conversions Unexpected or buggy dtype conversions
Backport PR #57388 on branch 2.2.x (BUG: map(na_action=ignore) not respected for Arrow & masked types) Arrow pyarrow functionality NA - MaskedArrays Related to pd.NA and nullable extension arrays
Backport PR #57764 on branch 2.2.x (BUG: PyArrow dtypes were not supported in the interchange protocol) Arrow pyarrow functionality Interchange Dataframe Interchange Protocol
Backport PR #57892 on branch 2.2.x (CI: xfail Pyarrow slicing test) Arrow pyarrow functionality Testing pandas testing functions or related to the test suite Upstream issue Issue related to pandas dependency
Backport PR #58268 on branch 2.2.x (CI/TST: Unxfail test_slice_locs_negative_step Pyarrow test) Arrow pyarrow functionality CI Continuous Integration Testing pandas testing functions or related to the test suite
Backport PR #57974 on branch 2.2.x (BUG: Fixed ADBC to_sql creation of table when using public schema) Arrow pyarrow functionality Bug IO SQL to_sql, read_sql, read_sql_query Sprints Sprint Pull Requests
Backport PR #46991 on branch 1.4.x (CI/TST: Fix test for pyarrow 8.0 release) Arrow pyarrow functionality Testing pandas testing functions or related to the test suite
Backport PR #46912 on branch 1.4.x (CI: More targeted pyarrow version testing) Arrow pyarrow functionality CI Continuous Integration
CLN: ArrowStringArray._cmp_method - use ChunkedArray.to_numpy() Arrow pyarrow functionality Performance Memory or execution speed performance
Backport PR #45524 on branch 1.4.x (REGR: fix period dtype <-> arrow roundtrip for pyarrow < 4) Arrow pyarrow functionality Compat pandas objects compatability with Numpy or Python functions IO Parquet parquet, feather Regression Functionality that used to work in a prior pandas version
Manual Backport PR #46059 on branch 1.4.x (CI: Test various Pyarrow version on Linux) Arrow pyarrow functionality CI Continuous Integration
TST: Filter/test pyarrow PerformanceWarnings Arrow pyarrow functionality Testing pandas testing functions or related to the test suite
ENH/TST: Add BaseUnaryOpsTests tests for ArrowExtensionArray Arrow pyarrow functionality Testing pandas testing functions or related to the test suite
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