NEWS.md

duckplyr 1.0.0.9000 (2025-02-08)

Documentation

• Use stingy instead of frugal (#594).

duckplyr 1.0.0 (2025-02-02)

Features

Large data

• Improved support for handling large data from files and S3: ingestion with read_parquet_duckdb() and others, and materialization with as_duckdb_tibble(), compute.duckplyr_df() and compute_file(). See vignette("large") for details.

• Control automatic materialization of duckplyr frames with the new prudence argument to as_duckdb_tibble(), duckdb_tibble(), compute.duckplyr_df() and compute_file(). See vignette("prudence") for details.

New functions

• read_csv_duckdb() and others, deprecating duckplyr_df_from_csv() and df_from_csv() (#210, #396, #459).

• read_sql_duckdb() (experimental) to run SQL queries against the default DuckDB connection and return the result as a duckplyr frame (duckdb/duckdb-r#32, #397).

• db_exec() to execute configuration queries against the default duckdb connection (#39, #165, #227, #404, #459).

• duckdb_tibble() (#382, #457).

• as_duckdb_tibble(), replaces as_duckplyr_tibble() and as_duckplyr_df() (#383, #457) and supports dbplyr connections to a duckdb database (#86, #211, #226).

• compute_parquet() and compute_csv(), implement compute.duckplyr_df() (#409, #430).

• fallback_config() to create a configuration file for the settings that do not affect behavior (#216, #426).

• is_duckdb_tibble(), deprecates is_duckplyr_df() (#391, #392).

• last_rel() to retrieve the last relation object used in materialization (#209, #375).

• Add "prudent_duckplyr_df" class that stops automatic materialization and requires collect() (#381, #390).

Translations

• Partial support for across() in mutate() and summarise() (#296, #306, #318, @lionel-, @DavisVaughan).

• Implement na.rm handling for sum(), min(), max(), any() and all(), with fallback for window functions (#205, #566).

• Add support for sub() and gsub() (@toppyy, #420).

• Handle dplyr::desc() (#550).

• Avoid forwarding is.na() to is.nan() to support non-numeric data, avoid checking roundtrip for timestamp data (#482).

• Correctly handle missing values in if_else().

• Limit number of items that can be handled with %in% (#319).

• duckdb_tibble() checks if columns can be represented in DuckDB (#537).

• Fall back to dplyr when passing multiple with joins (#323).

Error messages

• Improve fallback error message by explicitly materializing (#432, #456).

• Point to the native CSV reader if encountering data frames read with readr (#127, #469).

• Improve as_duckdb_tibble() error message for invalid x (@maelle, #339).

Behavior

• Depend on dplyr instead of reexporting all generics (#405). Nothing changes for users in scripts. When using duckplyr in a package, you now also need to import dplyr.

• Fallback logging is now on by default, can be disabled with configuration (#422).

• The default DuckDB connection is now based on a file, the location defaults to a subdirectory of tempdir() and can be controlled with the DUCKPLYR_TEMP_DIR environment variable (#439, #448, #561).

• collect() returns a tibble (#438, #447).

• explain() returns the input, invisibly (#331).

Bug fixes

• Compute ptype only for join columns in a safe way without materialization, not for the entire data frame (#289).

• Internal expr_scrub() (used for telemetry) can handle function-definitions (@toppyy, #268, #271).

• Harden telemetry code against invalid arguments (#321).

Documentation

• New articles: vignette("large"), vignette("prudence"), vignette("fallback"), vignette("limits"), vignette("developers"), vignette("telemetry") (#207, #504).

• New flights_df() used instead of palmerpenguins::penguins (#408).

• Move to the tidyverse GitHub organization, new repository URL https://github.com/tidyverse/duckplyr/ (#225).

• Avoid base pipe in examples for compatibility with R 4.0.0 (#463, #466).

Performance

• Comparison expressions are translated in a way that allows them to be pushed down to Parquet (@toppyy, #270).

• Printing a duckplyr frame no longer materializes (#255, #378).

• Prefer vctrs::new_data_frame() over tibble() (#500).

duckplyr 0.4.1 (2024-07-11)

Features

• df_from_file() and related functions support multiple files (#194, #195), show a clear error message for non-string path arguments (#182), and create a tibble by default (#177).
• New as_duckplyr_tibble() to convert a data frame to a duckplyr tibble (#177).
• Support descending sort for character and other non-numeric data (@toppyy, #92, #175).
• Avoid setting memory limit (#193).
• Check compatibility of join columns (#168, #185).
• Explicitly list supported functions, add contributing guide, add analysis scripts for GitHub activity data (#179).

Documentation

• Add contributing guide (#179).
• Show a startup message at package load if telemetry is not configured (#188, #198).
• ?df_from_file shows how to read multiple files (#181, #186) and how to specify CSV column types (#140, #189), and is shown correctly in reference index (#173, #190).
• Discuss dbplyr in README (#145, #191).
• Add analysis scripts for GitHub activity data (#179).

duckplyr 0.4.0 (2024-05-21)

Features

• Use built-in rfuns extension to implement equality and inequality operators, improve translation for as.integer(), NA and %in% (#83, #154, #148, #155, #159, #160).
• Reexport non-deprecated dplyr functions (#144, #163).
• library(duckplyr) calls methods_overwrite() (#164).
• Only allow constant patterns in grepl().
• Explicitly reject calls with named arguments for now.
• Reduce default memory limit to 1 GB.

Bug fixes

• Stricter type checks in the set operations intersect(), setdiff(), symdiff(), union(), and union_all() (#169).
• Distinguish between constant NA and those used in an expression (#157).
• head(-1) forwards to the default implementation (#131, #156).
• Fix cli syntax for internal error message (#151).
• More careful detection of row names in data frame.
• Always check roundtrip for timestamp columns.
• left_join() and other join functions call auto_copy().
• Only reset expression depth if it has been set before.
• Require fallback if the result contains duplicate column names when ignoring case.
• row_number() returns integer.
• is.na(NaN) is TRUE.
• summarise(count = n(), count = n()) creates only one column named count.
• Correct wording in instructions for enabling fallback logging (@TimTaylor, #141).

Chore

• Remove styler dependency (#137, #138).
• Avoid error from stats collection.

Documentation

• Mention wildcards to read multiple files in ?df_from_file (@andreranza, #133, #134).

Testing

• Reenable tests that now run successfully (#166).
• Synchronize tests (#153).
• Test that vec_ptype() does not materialize (#149).
• Improve telemetry tests.
• Promote equality checks to expect_identical() to capture differences between doubles and integers.

duckplyr 0.3.2 (2024-03-17)

Bug fixes

• Run autoupload in function so that it will be checked by static analysis (#122).

Features

• New df_to_parquet() to write to Parquet, new convenience functions df_from_csv(), duckdb_df_from_csv(), df_from_parquet() and duckdb_df_from_parquet() (#87, #89, #96, #128).

duckplyr 0.3.1 (2024-03-08)

Bug fixes

• Forbid reuse of new columns created in summarise() (#72, #106).
• summarise() no longer restores subclass.
• Disambiguate computation of log10() and log().
• Fix division by zero for positive and negative numbers.

Features

• New fallback_sitrep() and related functionality for collecting telemetry data (#102, #107, #110, #111, #115). No data is collected by default, only a message is displayed once per session and then every eight hours. Opt in or opt out by setting environment variables.
• Implement group_by() and other methods to collect fallback information (#94, #104, #105).
• Set memory limit and temporary directory for duckdb.
• Implement suppressWarnings() as the identity function.
• Prefer cli::cli_abort() over stop() or rlang::abort() (#114).
• Translate .data$a and .env$a.
• Strict checks for column class, only supporting integer, numeric, logical, Date, POSIXct, and difftime for now.
• If the environment variable DUCKPLYR_METHODS_OVERWRITE is set to TRUE, loading duckplyr automatically calls methods_overwrite().

Internal

• Better duckdb tests.
• Use standalone purrr for dplyr compatibility.

Testing

• Add tests for correct base of log() and log10().

Documentation

• methods_overwrite() and methods_restore() show a message.

duckplyr 0.3.0 (2023-12-10)

Bug fixes

• grepl(x = NA) gives correct results.
• Fix auto_copy() for non-data-frame input.
• Add output order preservation for filters.
• distinct() now preserves order in corner cases (#77, #78).
• Consistent computation of log(0) and log(-1) (#75, #76).

Features

• Only allow constants in mutate() that are actually representable in duckdb (#73).
• Avoid translating ifelse(), support if_else() (#79).

Documentation

• Separate and explain the new relational examples (@wibeasley, #84).

Testing

• Add test that TPC-H queries can be processed.

Chore

• Sync with dplyr 1.1.4 (#82).
• Remove dplyr_reconstruct() method (#48).
• Render README.
• Fix code generated by meta_replay().
• Bump constructive dependency.
• Fix output order for arrange() in case of ties.
• Update duckdb tests.
• Only implement newer slice_sample(), not sample_n() or sample_frac() (#74).
• Sync generated files (#71).

duckplyr 0.2.3 (2023-11-08)

Performance

• Join using IS NOT DISTINCT FROM for faster execution (duckdb/duckdb-r#41, #68).

Documentation

• Add stability to README output (@maelle, #62, #65).

duckplyr 0.2.2 (2023-10-16)

Bug fixes

• summarise() keeps "duckplyr_df" class (#63, #64).

• Fix compatibility with duckdb >= 0.9.1.

Chore

• Skip tests that give different output on dev tidyselect.

• Import utils::globalVariables().

Documentation

• Small README improvements (@maelle, #34, #57).

• Fix 301 in README.

duckplyr 0.2.1 (2023-09-16)

• Improve documentation.

• Work around problem with dplyr_reconstruct() in R 4.3.

• Rename duckdb_from_file() to df_from_file().

• Unexport private duckdb_rel_from_df(), rel_from_df(), wrap_df() and wrap_integer().

• Reexport %>% and tibble().

duckplyr 0.2.0 (2023-09-10)

• Implement relational API for DuckDB.

duckplyr 0.1.0 (2023-07-03)

Bug fixes

• Fix examples.

Chore

• Add CRAN install instructions.
• Satisfy R CMD check.
• Document argument.
• Error on NOTE.
• Remove relexpr_window() for now.

Documentation

• Clean up reference.

Uncategorized

Initial version, exporting:

• new_relational() to construct objects of class "relational"
• Generics rel_aggregate(), rel_distinct(), rel_filter(), rel_join(), rel_limit(), rel_names(), rel_order(), rel_project(), rel_set_diff(), rel_set_intersect(), rel_set_symdiff(), rel_to_df(), rel_union_all()
• new_relexpr() to construct objects of class "relational_relexpr"
• Expression builders relexpr_constant(), relexpr_function(), relexpr_reference(), relexpr_set_alias(), relexpr_window()