polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- rolling_corr and rolling_cov lose all precision on data far from zero, such as prices
- Streaming engine doesn't error on mismatched length when the input data has one row
- fix: allow `scan_delta` filter on struct columns with partial Delta stats
- `str.contains(regex=True)` OR-chains slower on 1.44.0+/2.0.0 vs 1.43.2
- fix(python): Correct operator overloading for reflect ops
- SQL: a table name that matches several tables ignoring case picks one at random
- SQL: DROP TABLE / TRUNCATE TABLE do not accept quoted table names
- SQL CREATE TABLE and DROP TABLE match table names case-sensitively, unlike FROM
- SQL CREATE TABLE IF NOT EXISTS errors when the table already exists
- feat: Support qualified table names in SQL
- Docs
- Rust not yet supported