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Issues list

BUG: fixed_size_list pyarrow type not interpretable on round-trip write/read. Arrow pyarrow functionality Bug IO Parquet parquet, feather Needs Discussion Requires discussion from core team before further action
#59738 opened Sep 6, 2024 by delucchi-cmu
2 of 3 tasks
2
BUG: Bug IO Parquet parquet, feather
#59692 opened Sep 3, 2024 by ChristofKaufmann
2 of 3 tasks
2
BUG: MultiIndex levels are not preserved for empty DataFrames after to_parquet roundtrip Bug Closing Candidate May be closeable, needs more eyeballs IO Parquet parquet, feather
#59385 opened Aug 1, 2024 by shunr
3 tasks done
1
BUG: read_parquet wrongly returns empty index if asked to read empty column list Bug IO Parquet parquet, feather Needs Triage Issue that has not been reviewed by a pandas team member
#59028 opened Jun 17, 2024 by batterseapower
2 of 3 tasks
3
BUG: pyarrow dtype_backend incorrectly loads columns (from parquet) when the data stored is a list of structs and one of the struct fields has only None/null values Arrow pyarrow functionality Bug IO Parquet parquet, feather Upstream issue Issue related to pandas dependency
#58867 opened May 30, 2024 by kbuma
2 of 3 tasks
@Angel-212
6
BUG: read_parquet gives TypeError if dtype is a pyarrow list Arrow pyarrow functionality Bug IO Parquet parquet, feather
#57411 opened Feb 14, 2024 by kinianlo
3 tasks done
1
@diogojarodrigues
7
BUG: parquet serialization/deserialization adds all dict keys into column Arrow pyarrow functionality IO Parquet parquet, feather Usage Question
#56842 opened Jan 12, 2024 by arogozhnikov
2 of 3 tasks
6
ENH: Need new semantics for selecting parquet engine in Pandas 3 Blocked Deprecate Functionality to remove in pandas IO Parquet parquet, feather
#56642 opened Dec 27, 2023 by davetapley
1 of 3 tasks
3.0
4
ENH: read parquet files in chunks using to_parquet and chunksize Arrow pyarrow functionality Enhancement IO Parquet parquet, feather
#55973 opened Nov 15, 2023 by match-gabeflores
1 of 3 tasks
1
@HkrFlores
8
BUG: pd.read_parquet with first batch full of Nones leads to exception Bug IO Parquet parquet, feather
#55731 opened Oct 27, 2023 by Meehai
2 of 3 tasks
3
BUG: pd.read_parquet() loads missing string values as None instead of NaN Arrow pyarrow functionality Bug IO Parquet parquet, feather
#55721 opened Oct 27, 2023 by kennysong
2 of 3 tasks
4
ENH: Add Zstd Compression Option for Parquet Output Enhancement IO Parquet parquet, feather Needs Discussion Requires discussion from core team before further action
#55571 opened Oct 18, 2023 by alexozwald
1 of 3 tasks
1
BUG: To/read parquet with None values in partition cols fail Bug IO Parquet parquet, feather Needs Triage Issue that has not been reviewed by a pandas team member
#55400 opened Oct 4, 2023 by TanguyLe
3 tasks done
BUG: to_parquet set schema metadata to datetime64 instead of datetime64[us] when dtype of the column is datetime64[us] Bug IO Parquet parquet, feather Needs Triage Issue that has not been reviewed by a pandas team member
#55118 opened Sep 13, 2023 by xythu
2 of 3 tasks
ENH: allow writing series to parquet file Enhancement IO Parquet parquet, feather Needs Discussion Requires discussion from core team before further action Series Series data structure
#54638 opened Aug 19, 2023 by lcrmorin
1 of 3 tasks
@sammcbeth
6
BUG: testing.assert_frame_equal unhelpful error message for string[pyarrow] Arrow pyarrow functionality Bug IO Parquet parquet, feather Strings String extension data type and string data
#54190 opened Jul 19, 2023 by randolf-scholz
2 of 3 tasks
BUG: DataFrame.to_parquet does not round-trip index dtype Arrow pyarrow functionality Bug IO Parquet parquet, feather
#54000 opened Jul 4, 2023 by randolf-scholz
2 of 3 tasks
4
BUG: read_parquet from public parquet file with AWS credentials in environment gives OSError Bug IO Parquet parquet, feather
#53701 opened Jun 16, 2023 by mvashishtha
3 tasks done
1
@SanjithChockan
5
BUG: read_parquet not preserving type of partition_cols Bug IO Parquet parquet, feather Needs Discussion Requires discussion from core team before further action
#53345 opened May 22, 2023 by galipremsagar
2 of 3 tasks
2
BUG: read_parquet converts pyarrow list type to numpy dtype Arrow pyarrow functionality Bug IO Parquet parquet, feather Upstream issue Issue related to pandas dependency
#53011 opened Apr 30, 2023 by danielhanchen
2 of 3 tasks
32
BUG: partitioning parquet by pyarrow.date32 fails when reading Arrow pyarrow functionality Bug IO Parquet parquet, feather Needs Discussion Requires discussion from core team before further action
#53008 opened Apr 30, 2023 by alippai
2 of 3 tasks
14
ENH: Read first n_rows of Parquet File Enhancement IO Parquet parquet, feather
#51830 opened Mar 7, 2023 by Kalaweksh
1 of 3 tasks
1
1
DOC: Provide examples of using read_parquet Docs IO Parquet parquet, feather
#49739 opened Nov 17, 2022 by wjones127
1 task done
3
BUG: Write and read parquet changes index type from PeriodIndex to int values of DataFrame with MultiIndex Bug IO Parquet parquet, feather MultiIndex Period Period data type
#49641 opened Nov 11, 2022 by aiwalter
3 tasks done
BUG: Column of Lists becomes Column of ndarray after writing to feather or parquet formats Bug IO Parquet parquet, feather
#49623 opened Nov 10, 2022 by Mostly-BSD
3 tasks done
@eshanja1n
2
ProTip! Updated in the last three days: updated:>2024-10-18.