v0.10.1

What's changed

• The argument quote_style in $write_csv() and $sink_csv() can now take
  the value "never" (#483).
• pl$DataFrame() now errors if the variables specified in schema do not exist
  in the data (#486).
• S3 methods for base R functions are well documented (#494).
• A bug that failing pl$SQLContext()$register() without load the package was fixed (#496).

lib-v0.34.1

docs(NEWS): tweak news about recent updates (#498)

v0.10.0

BREAKING CHANGES DUE TO RUST-POLARS UPDATE

• rust-polars is updated to 2023-10-25 unreleased version (#442)
  • New subnamespace "name" that contains methods $prefix(), $suffix()
keep() (renamed from keep_name()) and map() (renamed from map_alias()).
  • $dt$round() gains an argument ambiguous.
  • The following methods now accept an Expr as input: $top_k(), $bottom_k(),
    $list$join(), $str$strip_chars(), $str$strip_chars_start(),
    $str$strip_chars_end(), $str$split_exact().
  • The following methods were renamed:
    • $str$n_chars() -> $str$len_chars()
    • $str$lengths() -> $str$len_bytes()
    • $str$ljust() -> $str$pad_end()
    • $str$rjust() -> $str$pad_start()
  • $concat() with how = "diagonal" now accepts an argument to_supertypes
    to automatically convert concatenated columns to the same type.
  • pl$enable_string_cache() doesn't take any argument anymore. The string cache
    can now be disabled with pl$disable_string_cache().
  • $scan_parquet() gains an argument hive_partitioning.
  • $meta$tree_format() has a better formatted output.

Breaking changes

• $scan_csv() and $read_csv() now match more closely the Python-Polars API (#455):
  • sep is renamed separator, overwrite_dtypes is renamed dtypes,
    parse_dates is renamed try_parse_dates.
  • new arguments rechunk, eol_char, raise_if_empty, truncate_ragged_lines
  • path can now be a vector of characters indicating several paths to CSV files.
    This only works if all CSV files have the same schema.

What's changed

• New class RPolarsSQLContext and its methods to perform SQL queries on DataFrame-
  like objects. To use this feature, needs to build Rust library with full features
  (#457).
• New methods $peak_min() and $peak_max() to find local minima and maxima in
  an Expr (#462).
• New methods $read_ndjson() and $scan_ndjson() (#471).
• New method $with_context() for LazyFrame to have access to columns from
  other Data/LazyFrames during the computation.

lib-v0.34.0

chore: fix typo and revert Rd file incorrect change (#476)

v0.9.0

BREAKING CHANGES DUE TO RUST-POLARS UPDATE

• rust-polars is updated to 0.33.2 (#417)
  • In all date-time related methods, the argument use_earliest is replaced by ambiguous.
  • In $sample() and $shuffle(), the argument fixed_seed is removed.
  • In $value_counts(), the arguments multithreaded and sort
    (sometimes called sorted) have been swapped and renamed sort and parallel.
  • $str$count_match() gains a literal argument.
  • $arg_min() doesn't consider NA as the minimum anymore (this was already the behavior of $min()).
  • Using $is_in() with NA on both sides now returns NA and not TRUE anymore.
  • Argument pattern of $str$count_matches() can now use expressions.
  • Needs Rust toolchain nightly-2023-08-26 for to build with full features.
• Rename R functions to match rust-polars
  • $str$count_match() -> $str$count_matches() (#417)
  • $str$strip() -> $str$strip_chars() (#417)
  • $str$lstrip() -> $str$strip_chars_start() (#417)
  • $str$rstrip() -> $str$strip_chars_end() (#417)
  • $groupby() is renamed $group_by(). (#427)

Breaking changes

• Remove some deprecated methods.
  • Method $with_column() has been removed (it was deprecated since 0.8.0).
    Use $with_columns() instead (#402).
  • Subnamespace $arr has been removed (it was deprecated since 0.8.1).
    Use $list instead (#402).
• Setting and getting polars options is now made with pl$options,
  pl$set_options() and pl$reset_options() (#384).

What's changed

• Bump supported R version to 4.2 or later (#435).
• pl$concat() now also supports Series, Expr and LazyFrame (#407).
• New method $unnest() for LazyFrame (#397).
• New method $sample() for DataFrame (#399).
• New method $meta$tree_format() to display an Expr as a tree (#401).
• New argument schema in pl$DataFrame() and pl$LazyFrame() to override the
  automatic type detection (#385).
• Fix bug when calling R from polars via e.g. $map() where query would not
  complete in one edge case (#409).
• New method $cat$get_categories() to list unique values of categorical
  variables (#412).
• New methods $fold() and $reduce() to apply an R function rowwise (#403).
• New function pl$raw_list and class rpolars_raw_list a list of R Raw's, where missing is
  encoded as NULL to aid conversion to polars binary Series. Support back and forth conversion
  from polars binary literal and Series to R raw (#417).
• New method $write_csv() for DataFrame (#414).
• New method $sink_csv() for LazyFrame (#432).
• New method $dt$time() to extract the time from a datetime variable (#428).
• Method $profile() gains optimization arguments and plot-related arguments (#429).
• New method pl$read_parquet() that is a shortcut for pl$scan_parquet()$collect() (#434).
• Rename $str$str_explode() to $str$explode() (#436).
• New method $transpose() for DataFrame (#440).
• New argument eager of LazyFrame$set_optimization_toggle() (#439).
• {polars} can now be installed with "R source package with Rust library binary",
  by a mechanism copied from the prqlr package.

  Sys.setenv(NOT_CRAN = "true")
  install.packages("polars", repos = "https://rpolars.r-universe.dev")

  The URL and SHA256 hash of the available binaries are recorded in tools/lib-sums.tsv.
  (#435, #448, #450, #451)

lib-v0.33.0

ci: add release-lib workflow to upload binary libraries to GitHub rel…

v0.8.1

• New string method to_titlecase() (#371).
• Although stated in news for PR (#334) strip = true was not actually set for the "release-optimized" compilation profile. Now it is, but the binary sizes seems unchanged (#377).
• New vignette on best practices to improve polars performance (#188).
• Subnamespace name "arr" as in <Expr>$arr$ & <Series>$arr$ is deprecated in favor of "list". Finally at polars 0.9.0 the "arr" will be removed (#375).

v0.8.0

What's Changed

• docs: can't install from CRAN now by @eitsupi in #333
• Revert "Revert "Implement with_row_count for DataFrame and LazyFrame"" by @eitsupi in #332
• fix local build CMD by @philipp-baumann in #331
• Enable $explode() for Data/LazyFrame by @etiennebacher in #314
• build: always NOT_CRAN=true by @eitsupi in #340
• Add method $clone() for LazyFrame by @etiennebacher in #347
• Deprecate with_column() by @etiennebacher in #313
• Add robj clone by @sorhawell in #348
• Rework Expr operators and errors by @sorhawell in #346
• Implement cov, corr, rolling_cov, rolling_corr by @Sicheng-Pan in #351
• Implement concat_str() by @etiennebacher in #349
• Fix $describe() bug for column names containing a : by @sorhawell in #342
• fix use polars without library(polars) by @sorhawell in #355
• Moderate ** claims in docs + rework title by @sorhawell in #353
• Implement lazyframe profiling and optimization toggles by @Sicheng-Pan in #323
• Background execution and R process pool by @Sicheng-Pan in #311
• fix named_exprs not allowed and any related error by @sorhawell in #357
• Minor rework for $explode() by @sorhawell in #358
• fix collect(collect_in_background=TRUE) by @sorhawell in #359
• Minor error by @etiennebacher in #362
• Implement sink stream for LazyFrame by @Sicheng-Pan in #343
• Add rust polars version info by @sorhawell in #363
• Add several methods to use string cache by @sorhawell in #361
• bump rust-polars to 0.32.0 by @sorhawell in #334
• <LazyFrame>$fetch() by @sorhawell in #319
• refactor lit, col, DataFrame, Series by @sorhawell in #369
• support extendr_polars by @sorhawell in #326

New Contributors

• @philipp-baumann made their first contribution in #331

Full Changelog: v0.7.0...v0.8.0

v0.7.0

What's Changed

• Revert commits pushed to the main branch by accident by @eitsupi in #237
• Add arg maintain_order to unique() by @etiennebacher in #238
• Add rename() for DataFrame and LazyFrame by @etiennebacher in #239
• Add pl$LazyFrame() by @etiennebacher in #245
• fix release pipeline misses devtools by @sorhawell in #246
• Refactor error handling of the repository by @Sicheng-Pan in #233
• disable docs deployment if not DEPLOY_DOCS key is present in github SECRETS by @sorhawell in #248
• Implement LazyFrame$schema by @Sicheng-Pan in #250
• Add a reference page for docs by @etiennebacher in #223
• docs: change reference_home to Rmd by @eitsupi in #264
• Accept lists in select() by @etiennebacher in #265
• feat!: add simd feature and remove polars/simd from the default feature by @eitsupi in #262
• point to rpolars/extendr branch pr473_553_555_566 by @sorhawell in #252
• trait specialization replace with two plain funcs by @sorhawell in #278
• feat: add polars_info function by @eitsupi in #271
• ci: add MSRV check workflow (should support Rust 1.66 now) by @eitsupi in #279
• impl glimpse by @sorhawell in #277
• test extendr rprintln supports %-char by @sorhawell in #284
• fix: polars_info() shows features correctly by @eitsupi in #285
• ci: R CMD check without simd feature with release virsion of Rust by @eitsupi in #274
• Accept vector of colnames in $over() by @etiennebacher in #287
• fix: support Rust 1.65 by @sorhawell in #280
• Replace reverse by descending in sorting functions by @etiennebacher in #291
• fix(installation): set CARGO_HOME to a temp dir if not NOT_CRAN=true by @eitsupi in #292
• fix: reverse -> descending by @eitsupi in #293
• DataFrame.describe + auto-convert String-Err to RPolarsErr by @sorhawell in #268
• docs(NEWS): polish NEWS by @eitsupi in #296
• chore(docs): updates for R check notes by @eitsupi in #295
• docs(README): update installation options by @eitsupi in #294
• Fix news indentation by @etiennebacher in #298
• Add pivot examples to vignette by @grantmcdermott in #299
• feat!: bump rust-polars to 0.30.0 by @eitsupi in #289
• Use altdoc dev version by @etiennebacher in #303
• docs: fix some misspelling by @eitsupi in #304
• Rename functions to read CSV by @etiennebacher in #305
• docs: add LICENSE.note about Rust dependencies by @eitsupi in #309
• Enable how = "cross" in $join() by @etiennebacher in #310
• Square bracket for LazyFrame by @vincentarelbundock in #301
• fix: use libR-sys 0.4.0 by @eitsupi in #317
• chore: cargo update by @eitsupi in #318
• Implement with_row_count for DataFrame and LazyFrame by @Sicheng-Pan in #329
• Revert "Implement with_row_count for DataFrame and LazyFrame" by @eitsupi in #330
• release: Release 0.7.0 by @eitsupi in #308

Full Changelog: v0.6.1...v0.7.0

v0.6.1

What's Changed

• Increment version number to 0.6.0.9000 by @eitsupi in #197
• R 4.2 -> 4.3 for r-universe binaries by @eddelbuettel in #198
• Docs: misc fixes by @etiennebacher in #200
• Use maintain_order = TRUE in README by @etiennebacher in #199
• Refactor groupby + defualt_maintain_order option by @sorhawell in #201
• fix dl-link macos readme by @sorhawell in #195
• try preload nanoarrow before building polars by @sorhawell in #207
• pak::local_install_deps(upgrade = FALSE) for ensure binary install by @sorhawell in #203
• try smorimoto/tune-github-hosted-runner-network by @sorhawell in #212
• More lazy functions by @sorhawell in #196
• Use @doctype NULL by @etiennebacher in #210
• Add @format NULL by @etiennebacher in #213
• debug/profile polars by @sorhawell in #193
• fix: pin the rust toolchain version by @eitsupi in #217
• formatting: Auto formatting by styler by @eitsupi in #215
• pin rust night in release.yaml (follow up #217) by @sorhawell in #219
• Fix rustanalyzer warnings + obey clippy by @sorhawell in #224
• Update nix flake by @Sicheng-Pan in #227
• build(nix): allow builtinsFetchGit by @a-kenji in #228
• chore: bump dev packages and fix test by @eitsupi in #229
• melt + pivot by @sorhawell in #232
• Bump to 0.6.1 by @sorhawell in #235

New Contributors

• @eddelbuettel made their first contribution in #198
• @a-kenji made their first contribution in #228

Full Changelog: v0.6.0...v0.6.1