Repository Issue Activity (beta)

#3482 wr.s3.to_parquet with explicit dtype mapping can be extremely slow on large DataFrames

#3233 Athena GetWorkgroup is called unnecessarily - there should be an option to avoid that

#3446 athena.to_iceberg - array types cause casting error during merging

#3456 `pd.concat(..., copy=False)` in `s3/_read.py` emits Pandas4Warning on pandas ≥3.0 — drop the deprecated `copy` keyword

#3166 Investigate transient failure in test_timestream unit test

#3335 s3.to_iceberg - header: xxpect value: 100-continue

#3357 Timestamp resolution overflow with pandas>=3.0

#3450 catalog: rename_duplicated_columns raises IndexError on duplicate NaN column names

#2831 wr.s3.download fits the whole file into memory, with 2x memory allocation

#3412 athena2pyarrow rejects Athena varbinary and accepts invalid substrings

#3421 bug: wr.s3.open_s3_object in write mode does not create or overwrite 0-byte objects

#3338 wr.postgresql.read_sql_query() - KeyError when reading UUID column values from Postgres

#3393 AWSSDKPandas-Python312:29 managed layer SIGSEGVs on datetime64 (pandas 3.0.3 / numpy 2.5.0)

#3380 Updates to the lambda layer for fixing CVE-45409 with idna and CVE-2026-25087 with pyarrow

#3293 `wr.redshift.copy()` silently renames columns with spaces due to pyarrow defaulting to `flavor='spark'` in internal `s3.to_parquet` call

#2396 `DescribeTable` call hidden in `read_items`

#3331 Stark increase in layer size with version 3.16.1 causing Lambda deployment failures

#3346 Support conversion from Pyarrow ExtensionTypes to Athena types

#3191 EMR create_cluster support pass bootstrap arguments

#2845 `athena.to_parquet` fails when `mode=overwrite_partitions` and `partition_cols` contains something like `hour(timestamp_col)`.

#3173 to_iceberg: conditional merge

#2378 `wr.s3.to_deltalake` throwing TypeError about storage_options

#3037 s3 tables support

#3174 Cannot query Athena when using managed query result storage

#3222 ICEBERG_TOO_MANY_OPEN_PARTITIONS awswrangler.athena.to_iceberg