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# Description
This PR introduces `polars struct-encode-json`. This exposes the ability
to encode struct columns as json strings. This is useful when converting
things to formats like CSV that do not support complex types.
```nushell
> ❯ : [[id person]; [1 {name: "Bob", age: 36}] [2 {name: "Betty", age: 63}]]
| polars into-df -s {id: i64, person: {name: str, age: u8}}
| polars select id (polars col person | polars struct-json-encode | polars as encoded)
| polars collect
╭───┬────┬───────────────────────────╮
│ # │ id │ encoded │
├───┼────┼───────────────────────────┤
│ 0 │ 1 │ {"age":36,"name":"Bob"} │
│ 1 │ 2 │ {"age":63,"name":"Betty"} │
╰───┴────┴───────────────────────────╯
```
# User-Facing Changes
* Added `polars struct-encode-json`, providing the ability to encode
structs as json
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|---|---|---|
| .. | ||
| nu_plugin_custom_values | ||
| nu_plugin_example | ||
| nu_plugin_formats | ||
| nu_plugin_gstat | ||
| nu_plugin_inc | ||
| nu_plugin_javascript | ||
| nu_plugin_nu_example | ||
| nu_plugin_polars | ||
| nu_plugin_python | ||
| nu_plugin_query | ||
| nu_plugin_stress_internals | ||
| nu-cli | ||
| nu-cmd-base | ||
| nu-cmd-extra | ||
| nu-cmd-lang | ||
| nu-cmd-plugin | ||
| nu-color-config | ||
| nu-command | ||
| nu-derive-value | ||
| nu-engine | ||
| nu-explore | ||
| nu-glob | ||
| nu-json | ||
| nu-lsp | ||
| nu-parser | ||
| nu-path | ||
| nu-plugin | ||
| nu-plugin-core | ||
| nu-plugin-engine | ||
| nu-plugin-protocol | ||
| nu-plugin-test-support | ||
| nu-pretty-hex | ||
| nu-protocol | ||
| nu-std | ||
| nu-system | ||
| nu-table | ||
| nu-term-grid | ||
| nu-test-support | ||
| nu-utils | ||
| nuon | ||
| README.md | ||
Nushell core libraries and plugins
These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.
Foundational libraries are split into two kinds of crates:
- Core crates - those crates that work together to build the Nushell language engine
- Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.
Plugins are likewise also split into two types:
- Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
- Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.