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CHANGELOG.md

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0.12.0 (unreleased)

  • Updated Polars to 0.41.2
  • Improved struct method
  • Aliased melt to unpivot for DataFrame and LazyFrame
  • Changed signature of pivot and melt methods
  • Changed signature of date_range and date_ranges methods
  • Removed use_earliest option from replace_time_zone and to_datetime methods (use ambiguous instead)
  • Removed by and closed options from rolling_* methods (use rolling_*_by instead)
  • Removed explode method from StringExpr (use split("").explode instead)
  • Removed set_ordering method from CatExpr

0.11.0 (2024-06-02)

  • Updated Polars to 0.40.0
  • Added date_ranges method to Polars
  • Added read_ipc_stream method to Polars
  • Added write_ipc_stream to DataFrame
  • Added flags method to DataFrame
  • Added support for keyword arguments to agg methods
  • Aliased apply to map_rows for DataFrame
  • Changed default name for with_row_index from row_nr to index

0.10.0 (2024-05-02)

  • Updated Polars to 0.39.2
  • Added support for writing JSON to string
  • Added support for writing Parquet to StringIO
  • Added support for cross joins
  • Added data_page_size option to write_parquet method
  • Added truncate_ragged_lines option to read_csv, read_csv_batched, and scan_csv methods
  • Added precompiled gem for Linux x86-64 MUSL
  • Changed drop method to ignore missing columns
  • Fixed error with then method

0.9.0 (2024-03-03)

See the upgrade guide

  • Updated Polars to 0.38.1
  • Changed count method to exclude null values
  • Changed dtype and schema methods to always return instances of data types
  • Added Enum type
  • Added Testing module
  • Added arctan2, arctan2d, set_random_seed, and sql_expr methods to Polars
  • Added enable_string_cache, disable_string_cache, and using_string_cache to Polars
  • Added methods for horizontal aggregations to Polars
  • Added sink_ipc, sink_csv, and sink_ndjson methods to LazyFrame
  • Added replace method to Series and Expr
  • Added eq, eq_missing, ne, and ne_missing methods to Series and Expr
  • Added ge, gt, le, and lt methods to Series and Expr
  • Added merge_sorted method to DataFrame and LazyFrame
  • Added more methods to ArrayExpr and ArrayNameSpace
  • Added more methods to CatExpr and CatNameSpace
  • Added more methods to ListExpr and ListNameSpace
  • Added more methods to MetaExpr
  • Added more methods to StringExpr
  • Added schema_overrides option to read_database method
  • Added join_nulls option to join method
  • Added ignore_nulls option to any and all methods
  • Aliased apply to map_elements for Series
  • Aliased cleared to clear for DataFrame and LazyFrame
  • Fixed error with BigDecimal objects

0.8.0 (2024-01-10)

  • Updated Polars to 0.36.2
  • Added support for Ruby 3.3
  • Added warning to count method for Series and Expr about excluding null values in 0.9.0
  • Added cut and qcut methods to Series and Expr
  • Added rle and rle_id methods to Series and Expr
  • Added bottom_k method to Series
  • Aliased Utf8 data type to String
  • Fixed error with top_k method
  • Dropped support for Ruby < 3.1

0.7.0 (2023-11-17)

  • Updated Polars to 0.35.2
  • Added support for SQL querying
  • Added ! for Expr
  • Added Config module
  • Added none? method to Series
  • Aliased groupby to group for DataFrame and LazyFrame
  • Changed series creation with all nil objects to Null type
  • Removed tz_localize method from DateTimeExpr
  • Removed support for passing Active Record objects to DataFrame.new (use read_database instead)

0.6.0 (2023-07-23)

  • Updated Polars to 0.31.1
  • Added Array type
  • Added support for creating series with Datetime type
  • Added support for Null to to_a method
  • Improved support for Decimal and Time types
  • Changed arr to list for Series and Expr
  • Changed series creation with BigDecimal objects to Decimal type
  • Changed series creation with ActiveSupport::TimeWithZone objects to Datetime type
  • Changed equality for data types
  • Fixed error with groupby_dynamic method
  • Removed agg_list method from GroupBy

0.5.0 (2023-05-15)

  • Updated Polars to 0.29.0
  • Added support for List and Struct to to_a method
  • Added support for creating series from Numo arrays
  • Added column assignment to DataFrame
  • Added sort! and to_a methods to DataFrame
  • Added support for Object to to_a method
  • Aliased len to size for Series and DataFrame
  • Aliased apply to map and unique to uniq for Series
  • Improved any and all for Series

0.4.0 (2023-04-01)

  • Updated Polars to 0.28.0
  • Added support for creating Binary series
  • Added support for Binary to to_a method
  • Added support for glob patterns to read_parquet method
  • Added sink_parquet method to LazyFrame
  • Added BinaryExpr and BinaryNameSpace
  • Prefer read_database over read_sql

0.3.1 (2023-02-21)

  • Added plot method to DataFrame and GroupBy
  • Added to_numo method to Series and DataFrame
  • Added support for Datetime to to_a method
  • Fixed is_datelike method for Datetime and Duration

0.3.0 (2023-02-15)

  • Updated Polars to 0.27.1
  • Added each method to Series, DataFrame, and GroupBy
  • Added iter_rows method to DataFrame
  • Added named option to row and rows methods
  • Replaced include_bounds option with closed for is_between method

0.2.5 (2023-02-01)

  • Added support for glob patterns to read_csv method
  • Added support for symbols to more methods

0.2.4 (2023-01-29)

  • Added support for more types when creating a data frame from an array of hashes

0.2.3 (2023-01-22)

  • Fixed error with precompiled gem on Mac ARM
  • Fixed issue with structs

0.2.2 (2023-01-20)

  • Added support for strings to read_sql method
  • Improved indexing
  • Fixed error with precompiled gem on Mac ARM

0.2.1 (2023-01-18)

  • Added read_sql method
  • Added to_csv method
  • Added support for symbol keys

0.2.0 (2023-01-14)

  • Updated Polars to 0.26.1
  • Added precompiled gems for Linux and Mac
  • Added data type classes
  • Changed dtype and schema methods to return data type class instead of symbol
  • Dropped support for Ruby < 3

0.1.5 (2022-12-22)

  • Added read_avro and write_avro methods
  • Added more methods

0.1.4 (2022-12-02)

  • Added more methods
  • Improved performance

0.1.3 (2022-11-27)

  • Added more methods

0.1.2 (2022-11-25)

  • Added more methods

0.1.1 (2022-11-23)

  • Added more methods

0.1.0 (2022-11-21)

  • First release