explorer 0.8.1

v0.8.1

on Hex

Added

• Add Explorer.Series.field/2 to extract a field from a struct series.
  It returns a new series with the field's dtype.

• Add Explorer.Series.json_decode/2 that can decode a string series containing valid JSON objects according to dtype.

• Add eager count/1 and lazy size/1 to Explorer.Series.

• Add support for maps as expressions inside Explorer.Query. They are "converted" to structs.

• Add json_path_match/2 to extract a string series from a string containing valid JSON objects.
  See the article JSONPath - XPath for JSON for details about JSON paths.

• Add Explorer.Series.row_index/1 to retrieve the index of rows starting from 0.

• Add support for passing the :on column directly (instead of inside a list) in Explorer.DataFrame.join/3.

Changed

• Remove some deprecated functions from documentation.

• Change internal representation of the :struct dtype to use list of tuples instead of a map to represent the dtypes of each field. This shouldn't break because we normalise maps to lists when a struct dtype is passed in from_list/2 or cast/2.

• Update Rustler minimum version to ~> 0.31. Since Rustler is optional, this shouldn't affect most of the users.

Fixed

• Fix float overflow error to avoid crashing the VM, and instead it returns an argument error.

• Fix Explorer.DataFrame.print/2 for when the DF contains structs.

Pull requests

• Fix typo by @ahamez in #836
• Fix for Float Overflow resulting in VM Crash by @lkarthee in #837
• add field/2 for extracting field from struct by @lkarthee in #839
• fix DF.print for :struct by @lkarthee in #840
• Add Struct json_decode/3 for decoding json from string by @lkarthee in #841
• Add eager Series.count/1 and lazy Series.size/1 by @billylanchantin in #844
• remove deprecated funcs from docs by @lkarthee in #845
• Accommodate VSCode users with the rust-analyzer extension by @billylanchantin in #846
• Fix from_list/2 of list of structs when first is empty by @philss in #849
• Change inner dtypes of structs to tuple lists by @philss in #851
• allow nils along with struct - from_list/2 by @lkarthee in #854
• add support for map as expression by @lkarthee in #855
• Inferred dtype property tests by @billylanchantin in #856
• Check duplicate keys dataframe rename column by @pcapel in #850
• add json_path_match/2 by @lkarthee in #859
• Update Rustler and use new float term type by @filmor in #860
• Series.row_index/1 by @iurimateus in #862
• Wrap join on with list by @pcapel in #866
• Support atom names in Series.field/2 by @philss in #868
• Release v0.8.1 by @philss in #869

New Contributors

• @ahamez made their first contribution in #836
• @pcapel made their first contribution in #850
• @filmor made their first contribution in #860
• @iurimateus made their first contribution in #862

Full Changelog: v0.8.0...v0.8.1
Official Changelog: https://hexdocs.pm/explorer/changelog.html

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