Highlights

JSON Schema validation just got a whole lot more powerful with the introduction of qsv's custom dynenum keyword!
With dynenum, you can now dynamically lookup valid enum values from a CSV (on the filesystem or on a URL), allowing for more flexible and responsive data validation.

Unlike the standardenum keyword, dynenum does not require hardcoding valid values at schema definition time, and can be used to validate data against a changing set of valid values.

For an example, see #1872 (reply in thread).

In an upcoming qsv pro release, we're planning on making dynenum even more powerful by allowing you to easily specify high-value reference data (e.g. US Census data, World Bank data, data.gov, etc.) that is maintained at data.dathere.com and other CKAN instances.

This release also add the custom currency JSON Schema format, which enables currency validation according to the ISO 4217 standard.

The Polars engine was also upgraded to 0.43.1 at the py-1.81.1 tag - making for various under-the-hood improvements for the sqlp, joinp and count commands, as we set the stage for more Polars-powered features in future releases.

Added

• foreach: enabled foreach command on Windows prebuilt binaries def9c8f
• lens: added support for QSV_SNIFF_DELIMITER env var and snappy auto-decompression 8340e89
• sample: add --max-size option e845a3c
• validate: added dynenum custom JSON Schema keyword for dynamic validation lookups #2166
• tests: add tests for https://100.dathere.com/lessons/2 by @rzmk in #2141
• added stats_sorted and frequency_sorted benchmarks
• added validate_dynenum benchmarks

Changed

• json: add error for empty key and update usage text by @rzmk in #2167
• prompt: gate prompt command behind prompt feature #2163
• validate: expanded currency JSON Schema custom format to support ISO 4217 currency codes and alternate formats 5202508
• validate: migrate to new jsonschema crate api 5d65054
• Update ubuntu version for deb package by @tino097 in #2126
• contrib(completions): update completions for qsv v0.134.0 and fix subcommand options by @rzmk in #2135
• contrib(completions): add --max-size completion for sample by @rzmk in #2142
• deps: bump to polars 0.43.1 at py-1.81.1 #2130
• deps: switch back to calamine upstream instead of our fork 677458f
• build(deps): bump actix-governor from 0.5.0 to 0.6.0 by @dependabot in #2146
• build(deps): bump anyhow from 1.0.87 to 1.0.88 by @dependabot in #2132
• build(deps): bump arboard from 3.4.0 to 3.4.1 by @dependabot in #2137
• build(deps): bump bytes from 1.7.1 to 1.7.2 by @dependabot in #2148
• build(deps): bump geosuggest-core from 0.6.3 to 0.6.4 by @dependabot in #2153
• build(deps): bump geosuggest-utils from 0.6.3 to 0.6.4 by @dependabot in #2154
• build(deps): bump jql-runner from 7.1.13 to 7.2.0 by @dependabot in #2165
• build(deps): bump jsonschema from 0.18.1 to 0.18.2 by @dependabot in #2127
• build(deps): bump jsonschema from 0.18.2 to 0.18.3 by @dependabot in #2134
• build(deps): bump jsonschema from 0.18.3 to 0.19.1 by @dependabot in #2144
• build(deps): bump jsonschema from 0.19.1 to 0.20.0 by @dependabot in #2152
• build(deps): bump pyo3 from 0.22.2 to 0.22.3 by @dependabot in #2143
• build(deps): bump rfd from 0.14.1 to 0.15.0 by @dependabot in #2151
• build(deps): bump simple-expand-tilde from 0.4.0 to 0.4.2 by @dependabot in #2129
• build(deps): bump qsv_currency from 0.6.0 to 0.7.0 by @dependabot in #2159
• build(deps): bump qsv_docopt from 1.7.0 to 1.8.0 by @dependabot in #2136
• build(deps): bump redis from 0.26.1 to 0.27.0 by @dependabot in #2133
• build(deps): bump simdutf8 from 0.1.4 to 0.1.5 by @dependabot in #2164
• bump indirect dependencies
• apply select clippy lint suggestions
• several usage text/documentation improvements
• bump MSRV to 1.81.0

Fixed

• validate: correct fail_validation_error! macro; reformat error messages to use hyphens as the JSONschema error message already starts with "error:" 9a25524
• moved --help output from stderr to stdout as per GNU CLI guidelines #2138
• lens: fixed parsing of lens options 1cdd1bc
• searchset: fixed usage text for <regexset-file> 9a60fb0
• used patched forks of arrow, csvlens and xlsxwriter crates that replaces a dependency on an old version of lexical-core with known soundness issues - https://rustsec.org/advisories/RUSTSEC-2023-0086. Once those crates have updated their lexical-coredependency, we will revert to the original crates.

Removed

• removed prompt command from qsvlite #2163
• publish: remove lens feature from i686 targets as it does not compile 959ca76
• deps: remove anyhow dependency #2150

Full Changelog: 0.134.0...0.135.0

qsv pro v1 is here! 🎉

If you've been using qsv for a while, even if you're a command-line ninja, you'll find a lot of new capabilities in qsv pro that can make your data wrangling experience even better!

Apart from making qsv easier to use, qsv pro has a multitude of features including: view interactive data tables; browse stats/frequency/metadata; run recipes and tools (scripts); run Polars SQL queries; use Natural Language queries (using Retrieval Augmented Generation (RAG) techniques); regular expression search; export to multiple file formats; download/upload from/to compatible CKAN instances; design custom node-based flows and data pipelines; interact with a local API from external programs including the qsv pro command; run various qsv commands in a graphical user interface; and the list goes on!

And that's just the beginning, there's more to come! You just have to try it!

Download qsv pro v1 now at qsvpro.dathere.com.

Other highlights include:

• pro: new command to allow qsv to interact with the qsv pro API to tap into qsv pro exclusive features.
• lens: new command to interactively view CSVs using the csvlens crate.
• The ludicrously fast diff command is now easier to use with its --drop-equal-fields option. @janriemer continues to work on his csv-diff crate, and there's more diff UX improvements coming soon!
• stats adds sum_length and avg_length "streaming" statistics in addition to the existing min_length and max_length metrics. These are especially useful for datasets with a lot of "free text" columns.
• stats also got "smarter" and "faster" by dog-fooding its own statistics to make it run faster!
  It's a little complicated, but the way stats works is that it compiles the "streaming" statistics on the fly first as it multiplex load the data across several threads, and the more expensive advanced statistics are "lazily" computed at the end.
  Since we now compile "sort order" in a streaming manner, we use this info when deriving cardinality at the end to see if we can skip sorting - an otherwise necessary step to get cardinality which is done by "scanning" all the sorted values of a column. Everytime two neighboring values differ in a sorted column, it increments the cardinality count.
  Apart from this "sort order" optimization, we also improved the "cardinality scan" algorithm - halving its memory footprint and making it faster still for larger datasets by parallelizing the computation. This in turn, makes the frequency command faster and more memory efficient.
  It's performance tweaks like these, that despite adding six metrics (is_ascii, sort_order, sum_length, avg_length, sem - standard error of the mean & cv - coefficient of variation) in recent releases, that stats is still able to compile 35 statistics and do GUARANTEED data type inferences of a million row, 41 column, 520 MB sample of NYC's 311 data in 1.327 seconds (753,580 records per second)!¹
• we now also use our own fork of the csv crate, featuring SIMD-accelerated UTF-8 validation and other minor perf tweaks, making the entire qsv suite faster still!

Added

• pro: add qsv pro command to interact with qsv pro API by @rzmk in #2039
• lens: new command to interactively view CSVs using the csvlens crate #2117
• apply: add crc32 operation #2121
• count: add --delimiter option #2120
• diff: add flag --drop-equal-fields by @janriemer in #2114
• stats: add sum_length and avg_length columns #2113
• stats: smarter cardinality computation - added new parallel algorithm for large datasets (10,000+ rows) and updated sequential algorithm for smaller datasets 4e63fec

Changed

• count: added comment to justify magic number 5241e39
• stats: use simdjson for faster JSONL parsing; micro-optimize compute hot loop 0e8b734
• stats: standardized OVERFLOW and UNDERFLOW messages 38c6128
• sort: renamed symbol so eliminate devskim lint false positive warning 12db739
• enable lens feature in GH workflows #2122
• deps: bump polars 0.42.0 to latest upstream at time of release 3c17ed1
• deps: use our own optimized fork of csv crate, with simdutf8 validation and other minor perf tweaks e4bcd71
• build(deps): bump serde from 1.0.209 to 1.0.210 by @dependabot in #2111
• build(deps): bump serde_json from 1.0.127 to 1.0.128 by @dependabot in #2106
• build(deps): bump qsv-stats from 0.19.0 to 0.22.0 #2107 #2112 cb1eb60
• apply select clippy lint suggestions
• updated several indirect dependencies
• made various doc and usage text improvements

Fixed

• schema: Print an error if the qsv stats invocation fails by @abrauchli in #2110

New Contributors

• @abrauchli made their first contribution in #2110

Full Changelog: 0.133.1...0.134.0

Highlights

1

This release doubles down on Polars' capabilities, as we now, as a matter of policy track the latest polars upstream. If you think qsv has a torrid release schedule, you should see Polars. They're constantly fixing bugs, adding new features and optimizations! To keep up, we've added Polars revision info to the --version output, and the --envlist option now includes Polars relevant env vars. We've also added support for the POLARS_BACKTRACE_IN_ERR env var to control whether Polars backtraces are included in error messages. We also removed the to parquet subcommand as its redundant with the Polars-powered sqlp's ability to create parquet files. This removes the HUGE duckdb dependency, which should markedly make compile times shorter and binaries smaller.

Other highlights include:

• New edit command that allows you to edit CSV files.
• The count command's --width option now includes record width stats beyond max length (avg, median, min, variance, stddev & MAD).
• The fixlengths command now has --quote and --escape options.
• The stats command adds a sort_order streaming statistic.

NOTE: 0.133.0 was skipped because of a dev dependency conflict with the csvs_convert crate, preventing us from publishing 0.133.0 to crates.io. This has been resolved in 0.133.1.

Added

• count: expanded --width options, adding record width stats beyond max length (avg, median, min, variance, stddev & MAD). Also added --json output when using --width #2099
• edit: add qsv edit command by @rzmk in #2074
• fixlengths: added --quote and --escape options #2104
• stats: add sort_order streaming statistic #2101
• polars: add polars revision info to --version output e60e44f
• polars: added Polars relevant env vars to --envlist option 0ad68fe
• polars: add & document POLARS_BACKTRACE_IN_ERR env var f9cc559

Changed

• Optimize polars optflags #2089
• deps: bump polars 0.42.0 to latest upstream at time of release 3b7af51
• bump polars to latest upstream, removing smartstring #2091
• build(deps): bump actions/setup-python from 5.1.1 to 5.2.0 by @dependabot in #2094
• build(deps): bump flate2 from 1.0.32 to 1.0.33 by @dependabot in #2085
• build(deps): bump flexi_logger from 0.28.5 to 0.29.0 by @dependabot in #2086
• build(deps): bump indexmap from 2.4.0 to 2.5.0 by @dependabot in #2096
• build(deps): bump jsonschema from 0.18.0 to 0.18.1 by @dependabot in #2084
• build(deps): bump serde from 1.0.208 to 1.0.209 by @dependabot in #2082
• build(deps): bump serde_json from 1.0.125 to 1.0.127 by @dependabot in #2079
• build(deps): bump sysinfo from 0.31.2 to 0.31.3 by @dependabot in #2077
• build(deps): bump qsv-stats from 0.18.0 to 0.19.0 by @dependabot in #2100
• build(deps): bump tokio from 1.39.3 to 1.40.0 by @dependabot in #2095
• apply select clippy lint suggestions
• updated several indirect dependencies
• made various doc and usage text improvements
• pin Rust nightly to 2024-08-26 from 2024-07-26, aligning with Polars pinned nightly

Fixed

• Ensure portable binaries are "added" to the publish zip archive, instead of replacing all the binaries with just the portable version. Fixes #2083. 34ad206

Removed

• removed to parquet subcommand as its redundant with sqlp's ability to create parquet files. This also removes the HUGE duckdb dependency, which should markedly make compile times shorter and binaries much smaller #2088
• removed smartstring dependency now that Polars has its own compact inlined string type 47f047e
• removed to parquet benchmark

Full Changelog: 0.132.0...0.133.1

Highlights

With this release, we finally finish the stats caching refactor started in 0.131.0, replacing the binary encoded stats cache with a simpler JSONL cache. The stats cache stores the necessary statistical metadata to make several key commands smarter & faster. Per the benchmarks:

• frequency is 6x faster (frequency_index_stats_mode_auto).
  Not only is it faster, it now doesn't need to compile a hashmap for columns with ALL unique values (e.g. ID columns) - practically, making it able to handle "real-world" datasets of any size (that is, unless all the columns have ALL unique cardinalities. In that case, the entire CSV will have to fit into memory).
• tojsonl is 2.67x faster (tojsonl_index)
• schema is two orders of magnitude (100x) faster!!! (schema_index)

The stats cache also provides the foundation for even more "smart" features and commands in the future. It also has the side-benefit of adding a way to produce stats in JSONL format that can be used for other purposes beyond qsv.

The search, searchset, and replace commands now also have a --literal option that allows you to search for and replace strings with regex special/reserved characters. This makes it easier to search for and replace strings that contain otherwise reserved regex characters without having to escape them (especially useful with URL columns that often contain characters like ?,:,-,., etc.)

Added

• search, searchset & replace: add --literal option #2060 & 7196053
• slice: added usage text examples 04afaa3
• publish: added workflow to build "portable" binaries with CPU features disabled
• contrib(completions): add --literal for search and searchset by @rzmk in #2061
• contrib(completions): add --literal completion to replace by @rzmk in #2062
• add more polars metadata in --version info #2073
• docs: added more info to SECURITY.md 609d4df
• docs: expanded Goals/Non-Goals 54998e3
• docs: added Installation "Option 0" quick start bf5bf82
• added search --literal benchmark

Changed

• stats, schema, frequency & tojsonl: stats caching refactor, replacing binary encoded stats cache with a simpler JSONL cache #2055

• rename stats --stats-json option to stats --stats-jsonl #2063

• changed "broken pipe" error to a warning 7353275

• docs: update multithreading and caching sections of PERFORMANCE.md 5e6bc45

• deps: switch to our qsv-optimized fork of csv crate 3fc1e82

• deps: bump polars from 0.41.3 to 0.42.0 #2051

• build(deps): bump actix-web from 4.8.0 to 4.9.0 by @dependabot in #2041

• build(deps): bump flate2 from 1.0.31 to 1.0.32 by @dependabot in #2071

• build(deps): bump indexmap from 2.3.0 to 2.4.0 by @dependabot in #2049

• build(deps): bump reqwest from 0.12.6 to 0.12.7 by @dependabot in #2070

• build(deps): bump rust_decimal from 1.35.0 to 1.36.0 by @dependabot in #2068

• build(deps): bump serde from 1.0.205 to 1.0.206 by @dependabot in #2043

• build(deps): bump serde from 1.0.206 to 1.0.207 by @dependabot in #2047

• build(deps): bump serde from 1.0.207 to 1.0.208 by @dependabot in #2054

• build(deps): bump serde_json from 1.0.122 to 1.0.124 by @dependabot in #2045

• build(deps): bump serde_json from 1.0.124 to 1.0.125 by @dependabot in #2052

• apply select clippy lint suggestions

• updated several indirect dependencies

• made various usage text improvements

Fixed

• stats: fix --output delimiter inferencing based on file extension #2065
• make process_input helper handle stdin better #2058
• docs: fix completions for --stats-jsonl and qsv pro installation text update by @rzmk in #2072
• docs: added Note about why luau feature is disabled in musl binaries - ffa2bc5 & 27d0f8e

Removed

• Removed bincode dependency now that we're using JSONL stats cache #2055 babd92b

Full Changelog: 0.131.1...0.132.0

Changed

• deps: bump polars to latest upstream post py-1.41.1 release at the time of this release
• build(deps): bump filetime from 0.2.23 to 0.2.24 by @dependabot in #2038

Fixed

• frequency: change --stats-mode default to none from auto.
  This is because of a big performance regression when using --stats-mode auto on datasets with columns with ALL unique values.
  See #2040 for more info.

Full Changelog: 0.131.0...0.131.1

Highlights

• Refactored frequency to make it smarter and faster.
  frequency's core algorithm essentially compiles an in-memory hashmap to determine the frequency of each unique value for each column. It does this using multi-threaded, multi-I/O techniques to make it blazing fast.
  However, for columns with ALL unique values (e.g. ID columns), this takes a comparatively long time and consumes a lot of memory as it essentially compiles a hashmap of the ENTIRE column, with a hashmap entry for each column value with a count of 1.
  Now, with the new --stats-mode option (enabled by default), frequency can compile the dataset in a more intelligent way by looking up a column's cardinality in the stats cache.
  If the cardinality of a column is equal to the CSV's rowcount (indicating a column with ALL unique values), it short-circuits frequency calculations for that column - dramatically reducing the time and memory requirements for the ID column as it eliminates the need to maintain a hashmap for it.
  Practically speaking, this makes frequency able to handle "real-world" datasets of any size.
  To ensure frequency is as fast as possible, be sure to index and compute stats for your datasets beforehand.
• Setting the stage for Datapusher+ v1 and...
  The "itches we've been scratching" the past few months have been informed by our work at several clients towards the release of Datapusher+ 1.0 and qsv pro 1.0 (more info below) - both targeted for release this month.
  DP+ is our third-gen, high-speed data ingestion/registration tool for CKAN that uses qsv as its data wrangling/analysis engine. It will enable us to reinvent the way data is ingested into CKAN - with exponentially faster data ingestion, metadata inferencing, data validation, computed metadata fields, and more!
  We're particularly excited how qsv will allow us to compute and infer high-quality metadata for datasets (with a focus on inferring optional recommended DCAT-US v3 metadata fields) in "near real-time", while dataset publishers are still entering metadata. This will be a game-changer for CKAN administrators and data publishers!
• ...qsv pro 1.0
  qsv pro is datHere's enterprise-grade data wrangling/curation workbench that’s planned for v1.0 release this month.
  Building the core functionality of qsv pro's Workflow feature is one of the primary reasons for a v1.0 release.
  We feel qsv pro may be a game-changer for data wranglers and data curators who need to work with spreadsheets and large datasets to view statistical data and metadata while also performing complex data wrangling operations in a user-friendly way without having to write code.

Added

• docs: added Shell Completion section 556a2ff
• docs: add 🪄 emoji in legend to indicate "automagical" commands 2753c90
• Add building deb package (WIP) by @tino097 in #2029
• Added GitHub workflow to test debian package (WIP) by @tino097 in #2032
• tests: added false positive to _typos.toml configuration d576af2
• added more benchmarks
• added more tests

Changed

• fetch & fetchpost: remove expired diskcache entries on startup 9b6ab5d
• frequency: smarter frequency compilation with new --stats-mode option #2030
• json: refactored for maintainability & performance 62e9216 and 4e44b18
• improved self-update messages 5c874e0 and 0aa0b13
• contrib(completions): frequency updates & remove bashly/fish by @rzmk in #2031
• Debian package update by @tino097 in #2017
• publish: optimized enabled CPU features when building release binaries in all GitHub Actions "publishing" workflows
• publish: ensure latest Python patch release is used when building qsvpy binary variants 2ab03a0 and ec6f486
• tests: also enabled CPU features in CI tests
• docs: wordsmith qsv "elevator pitch" cc47fe6
• docs: point to https://100.dathere.com in Whirlwind tour fc49aef
• deps: bump polars to latest upstream post py-1.41.1 release at the time of this release
• build(deps): bump bytes from 1.6.1 to 1.7.0 by @dependabot in #2018
• build(deps): bump bytes from 1.7.0 to 1.7.1 by @dependabot in #2021
• build(deps): bump flate2 from 1.0.30 to 1.0.31 by @dependabot in #2027
• build(deps): bump indexmap from 2.2.6 to 2.3.0 by @dependabot in #2020
• build(deps): bump jaq-parse from 1.0.2 to 1.0.3 by @dependabot in #2016
• build(deps): bump redis from 0.26.0 to 0.26.1 by @dependabot in #2023
• build(deps): bump regex from 1.10.5 to 1.10.6 by @dependabot in #2025
• build(deps): bump serde_json from 1.0.121 to 1.0.122 by @dependabot in #2022
• build(deps): bump sysinfo from 0.30.13 to 0.31.0 by @dependabot in #2019
• build(deps): bump sysinfo from 0.31.0 to 0.31.2 by @dependabot in #2024
• build(deps): bump tempfile from 3.11.0 to 3.12.0 by @dependabot in #2033
• build(deps): bump serde from 1.0.204 to 1.0.205 by @dependabot in #2036
• apply select clippy suggestions
• updated several indirect dependencies
• made various usage text improvements
• bumped MSRV to 1.80.1

Fixed

• sqlp & joinp: fixed .ssv.sz output auto-compression support 5397f6c & d86ba63
• docs: fix link by @uncenter in #2026
• tests: correct misnamed test 8ae6000
• tests: fix flaky reverse property tests d86ba63

Removed

• docs: "Quicksilver" is the name of the logo horse, not how you pronounce "qsv" e4551ae

New Contributors

• @uncenter made their first contribution in #2026

Full Changelog: 0.130.0...0.131.0

Following the 0.129.0 release - the largest release to date, 0.130.0 continues to polish qsv as a data-wrangling engine, packing new features, fixes, and improvements, previewing upcoming features in qsv pro 1.0. Here are a few highlights:

Highlights

• Added .ssv (semicolon separated values) automatic support. Semicolon separated values are now automatically detected and supported by qsv. Though not as common as CSV, SSV is used in some regions and industries, so qsv now supports it.
• Added cargo deb compatibility. In preparation for the release of DataPusher+ 1.0, we're now making it easier to upgrade qsvdp so CKAN administrators can install and upgrade it easily using apt-get install qsvdp or apt-get upgrade qsvdp.
  DP+ is our next-gen, high-speed data ingestion tool for CKAN that uses qsv as its analysis engine. Its not only a robust, fast, validating data pump that guarantees high quality data, it also does extended analysis to infer and automatically derive high-quality metadata - what we call "automagical metadata".
• Upgraded to the latest Polars upstream at the py-polars-1.3.0 tag. Polars tops the TPC-H Benchmark and is several orders of magnitude faster than traditional dataframe libraries (cough - 🐼 pandas). qsv proudly rides the 🐻‍❄️ Polars bear to get subsecond response times even with very large datasets!
• qsv v0.130.0 shell completions files are available for download here. With shell completions, pressing tab in a compatible shell provides suggestions for various qsv commands, subcommands, and options that you can choose from. Supported shells include bash, zsh, powershell, fish, nushell, fig, and elvish. View tips on how to install completions for the bash shell here.

Added

• apply: add base62 encode/decode operations #2013
• headers: add --just-count option #2004
• json: add --select option #1990
• searchset: add --not-one flag by @rzmk in #1994
• Added .ssv (semicolon separated values) automatic support #1987
• Added cargo deb compatibility by @tino097 in #1991
• contrib(completions): add --just-count for headers by @rzmk in #2006
• contrib(completions): add --select for json by @rzmk in #1992
• added several benchmarks
• added more tests

Changed

• diff: allow selection of --key and --sort-columns by name, not just by index #2010
• fetch & fetchpost: replace deprecated Redis execute command 75cbe2b
• stats: more intelligent --infer-lenoption c6a0e64
• validate: return delimiter detected upon successful CSV validation #1977
• bump polars to latest upstream at py-polars-1.3.0 tag #2009
• deps: bump csvs_convert from 0.8.12 to 0.8.13 d1d0800
• build(deps): bump cached from 0.52.0 to 0.53.0 by @dependabot in #1983
• build(deps): bump cached from 0.53.0 to 0.53.1 by @dependabot in #1986
• build(deps): bump postgres from 0.19.7 to 0.19.8 by @dependabot in #1985
• build(deps): bump pyo3 from 0.22.1 to 0.22.2 by @dependabot in #1979
• build(deps): bump redis from 0.25.4 to 0.26.0 by @dependabot in #1995
• build(deps): bump serde_json from 1.0.120 to 1.0.121 by @dependabot in #2011
• build(deps): bump simple-expand-tilde from 0.1.7 to 0.4.0 by @dependabot in #1984
• build(deps): bump tokio from 1.38.0 to 1.38.1 by @dependabot in #1973
• build(deps): bump tokio from 1.38.1 to 1.39.1 by @dependabot in #1988
• build(deps): bump xxhash-rust from 0.8.11 to 0.8.12 by @dependabot in #1997
• apply select clippy suggestions
• updated several indirect dependencies
• made various usage text improvements
• pin Rust nightly to 2024-07-26

Fixed

• diff: clarify --key usage examples, resolves #1998 by @rzmk in #2001
• json: refactored so it didn't need to use threads to spawn qsv select to order the columns. Had to do this as sometimes intermediate output was sent to stdout before the final output was ready 0f25def
• py: replace row with col in usage text by @allen-chin in #2008
• reverse: fix indexed bug #2007
• validate: properly auto-detect tab delimiter when file extension is TSV or TAB #1975
• fix panic when process_input helper fn receives unexpected input from stdin 152fec4

Removed

• docs: remove *nix only message for foreach by @rzmk in #1972

New Contributors

• @tino097 made their first contribution in #1991
• @allen-chin made their first contribution in #2008

Full Changelog: 0.129.1...0.130.0

To stay updated with datHere's latest news and updates (including qsv pro, datHere's CKAN DMS, and analyze.dathere.com), subscribe to the newsletter here: dathere.com/newsletter

This is a small patch release to fix some publishing issues, update tab completion, and to fix minor CI errors.
See 0.129.0 release notes to get the details on qsv's biggest release to date!

Changed

• clipboard: add error handling based on clipboard::Error by @rzmk in #1970
• contrib(completions): add all commands (except applydp & generate) by @rzmk in #1971
• Temporarily suppressed some CI tests that were flaky on GH macOS Apple Silicon action runners. They previously worked fine on self-hosted macOS Apple Silicon action runners that are temporarily unavailable.

Full Changelog: 0.129.0...0.129.1

This release is the biggest one ever!

Packed with new features, improvements, and previews of upcoming qsv pro features, here are a few highlights:

📌 Highlights (click each dropdown for more info)

100.dathere.com - Try out lessons and exercises with qsv from your browser!

You may run qsv commands from your browser without having to install it locally at 100.dathere.com.

Within the lesson (in-page) using Thebe	In a Jupyter Lab environment

Thanks to Jupyter Book, datHere has released a website available at 100.dathere.com where you may explore lessons and exercises with qsv by running them within the web page, in a Jupyter Lab environment, or locally after following the provided installation instructions. There are multiple exercises planned, but feel free to try out the first few available lessons/exercises by visiting 100.dathere.com and star the source code's repository here.

New multi-shell completions draft (bash, zsh, powershell, fish, nushell, fig, elvish)

There's a draft of more qsv shell completion support including 7 different shells! The plan is to add the rest of the commands in this implementation since we can use one codebase to generate the 7 shell completion script files. Feel free to try out the various shell completions in the examples folder from contrib/completions to verify if the examples work (as of today's release date only qsv count and qsv clipboard may be available) and also contribute to adding the rest of the completions if you know a bit of Rust.

The existing Bash shell completions for v0.129.0 and fish shell completions draft are available for now as the multi-shell completions draft is being developed.

Bash completions demo	Fish completions demo

With shell completions enabled, you may identify qsv commands more easily when pressing the tab key on your keyboard in certain positions using the relevant Bash or fish shell from your terminal. You may follow the instructions from 100.dathere.com here to learn how to install the Bash completions and under the Usage section here for fish shell completions. Note that the fish shell completions are incomplete and both of the implementations may be replaced by the multi-shell completions implementation once complete.

[0.128.0] - 2024-05-25

❤️ csv,conf,v8 Edition 🎉
🏇🏽 ¡Ándale! ¡Ándale! ¡Arriba! ¡Arriba! 💨

Yii-hah! We're Mexico bound as we head to csv,conf,v8 to present and share qsv with fellow data-makers and wranglers from all over!

And we've packed a lot into this release for the occasion:

• search got a lot of love as it now powers qsv pro's new search feature to get near-instant search results even on large datasets.
• stats - the ❤️ of qsv, now has several cache fine-tuning options with --cache-threshold. It now also computes max_precision for floats and is_ascii for strings. It also has a new --round 9999 sentinel value to suppress rounding of statistics.
• schema & tojsonl are now faster thanks to stats --cache-threshold autoindex & cache creation/deletion logic.
• We upgraded Polars to 0.40.0 to unlock additional capabilities in the count, joinp & sqlp commands.
• count now has an additional blazing fast counting mode using Polars' read_csv() table function.
• frequency gets some micro-optimizations for even faster frequency analysis.
• luau is now bundled with luau 0.625 from 0.622. We also upgraded the bundled LuaDate library from 2.2.0 to 2.2.1. All of this, while making it ~10% faster!

Overall, qsv manages to keep its performance edge despite the addition of new capabilities and features. We'll give a whirlwind tour of qsv and these updates in our talk at csv,conf,v8.

We'll also preview what we've been calling the People's APPI - our "Answering People/Policymaker Interface" in qsv pro.

This is a new way to interact with qsv that's more conversational and less command-line-y using a natural language interface. It's a way to make qsv more accessible to more people, especially those who are not comfortable with the command line.

We're excited to share all these qsv innovations with the csv,conf,v8 community and the wider world! Nos vemos en Puebla!

¡Ándele! ¡Ándele! ¡Epa! ¡Epa! ¡Epa!

Added

• count: additional Polars-powered counting mode using read_csv() SQL table function 05c5809
• input: add --quote-style option df3c8f1
• joinp: add --coalesce option 8d142e5
• search: add --preview-match option #1785
• search: add --json output option #1790
• search: add "match-only" --flag option mode #1799
• search: add --not-one flag for not using exit code 1 when no match by @rzmk in #1810
• sqlp: add --decimal-comma option #1832
• stats: add --cache-threshold option #1795
• stats: add --cache-threshold autoindex creation/deletion logic #1809
• stats: add additional mode to --cache-threshold 63fdc55
• stats: now computes max_precision for floats #1815
• stats: add --round 9999 sentinel value support to suppress rounding #1818
• stats: add is_ascii column #1824
• added new benchmarks for search command 58d73c3

Changed

• count: document three count modes 3d5a333
• describegpt: update --max-tokens type for LLMs with larger context sizes by @rzmk #1841
• excel: use simpler range::headers() to get headers 069acbf
• frequency: ensure --other-sorted works with --other-text 7430ad7
• frequency: microoptimize hot loop d9c01e1, 7c9f925 and
• luau: improve usage text cb6b4d9
• luau: we now bundle luau 0.625 from 0.622 4060975
• luau: update vendored LuaDate library from 2.2.0 to 2.2.1 #1840
• schema: adjust to reflect stats --cache-threshold option 92fed86
• slice: move json output helpers to util 1f44b48
• tojsonl: refactor boolcheck helper 74d5f5a
• docs: cross-reference split & partition commands #1828
• contrib(bashly): update completions.bash for qsv v0.127.0 by @rzmk in #1776
• contrib(bashly): update completions.bash for qsv v0.128.0 by @rzmk in #1838
• deps: upgrade to polars 0.40.0 #1831
• build(deps): bump actix-web from 4.5.1 to 4.6.0 by @dependabot in #1825
• build(deps): bump anyhow from 1.0.82 to 1.0.83 by @dependabot in #1798
• build(deps): bump anyhow from 1.0.83 to 1.0.85 by @dependabot in #1823
• build(deps): bump anyhow from 1.0.85 to 1.0.86 by @dependabot in #1826
• build(deps): bump cached from 0.50.0 to 0.51.0 by @dependabot in #1789
• build(deps): bump cached from 0.51.0 to 0.51.1 by @dependabot in #1793
• build(deps): bump cached from 0.51.1 to 0.51.2 by @dependabot in #1802
• build(deps): bump cached from 0.51.2 to 0.51.3 by @dependabot in #1805
• build(deps): bump crossbeam-channel from 0.5.12 to 0.5.13 by @dependabot in #1827
• build(deps): bump csvs_convert from 0.8.9 to 0.8.10 by @dependabot in #1808
• build(deps): bump data-encoding from 2.5.0 to 2.6.0 by @dependabot in #1780
• build(deps): bump file-format from 0.24.0 to 0.25.0 by @dependabot in #1807
• build(deps): bump flate2 from 1.0.28 to 1.0.29 by @dependabot in #1778
• build(deps): bump flate2 from 1.0.29 to 1.0.30 by @dependabot in #1784
• build(deps): bump hashbrown from 0.14.3 to 0.14.5 by @dependabot in #1781
• build(deps): bump itertools from 0.12.1 to 0.13.0 by @dependabot in #1822
• deps: bump forked jsonschema from 0.17.1 to 0.18.0 f02620f
• build(deps): bump mimalloc from 0.1.41 to 0.1.42 by @dependabot in #1829
• build(deps): bump mlua from 0.9.7 to 0.9.8 by @dependabot in #1821
• build(deps): bump qsv-stats from 0.16.0 to 0.17.1 by @dependabot in #1813
• build(deps): bump qsv-stats from 0.17.1 to 0.17.2 by @dependabot in #1814
• build(deps): bump qsv-stats from 0.17.2 to 0.18.0 by @dependabot in #1816
• build(deps): bump ryu from 1.0.17 to 1.0.18 by @dependabot in #1801
• build(deps): bump semver from 1.0.22 to 1.0.23 by @dependabot in #1800
• build(deps): bump serde from 1.0.198 to 1.0.199 by @dependabot in #1777
• build(deps): bump serde from 1.0.199 to 1.0.200 by @dependabot in #1787
• build(deps): bump serde from 1.0.200 to 1.0.201 by @dependabot in #1804
• build(deps): bump serde from 1.0.201 to 1.0.202 by @dependabot in #1817
• build(deps): bump serde_json from 1.0.116 to 1.0.117 by @dependabot in #1806
• build(deps): bump serial_test from 3.1.0 to 3.1.1 by @dependabot in #1779
• build(deps): bump simple-expand-tilde from 0.1.5 to 0.1.6 by @dependabot in #1811
• build(deps): bump sysinfo from 0.30.11 to 0.30.12 by @dependabot in https://github.com/jq...