Modin 0.5.4 release notes

This release contains many performance enhancements and minor bugfixes. Several new features were also added this release.

Bugfixes + Pandas Concordance (🐛 + 🐼)

• Fix sorting for MultiIndex (#705)
• Fix parallel read_sql on Postgres tables (#707)
• Add fix for axis_partition operations after a join/concat (#704)
• Fix case where SQLAlchemy connections are passed in to read_sql (#712)
• Fix index mismatch for add (#710)
• Fixes indexing with boolean list in loc (#735)
• Default to pandas on MultiLevelIndex reset_index (#739)

New Functionality ✨

• reading gzipped csv files (#682)
• Add support for text manipulation operations (#713)
• Add support for dot (#719)
• Add to_numpy method (#718)
• Read_csv with compression "bz2", "zip", and "xz" (#722)

Backend enhancements + Performance 🚀

• Improve performance of __setitem__ on new column (#701)
• Improve fillna performance depending on arguments passed in (#709)
• Add metadata to be returned by operations along entire axis (#699)
• Add a way to compute pre-compute metadata on read_csv (#714)
• Add metadata to object when reading from parquet (#716)
• Improve performance of dtypes computation by collecting at data ingest (#717)
• Update partition width calculation for read csv with a ray engine (#728)
• Add to_numpy to Frame Manager, Query Compiler, and BaseDataFrame (#726)

Code Quality 💯

• Change datamanager to querycompiler (#702)
• Code quality/reorganize query compiler (#706)

Dependencies 🔗

• Update ray version to 0.7.1 (#697)

Contributors this release

The following users contributed code to Modin since the last release.

@dulinda (First time contributor) 🌟
@RehanSD (First time contributor) 🌟
@williamma12 (Maintainer)
@devin-petersohn (Maintainer)

🎉🎉 Thank you! 🎉🎉