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# Description
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`polars unique` currently only operates on entire dataframes. This PR
seeks to expand this command to handle expressions as well. See
examples:
```nushell
Returns unique values in a subset of lazyframe columns
> [[a]; [2] [1] [2]]
| polars into-lazy
| polars select (polars col a | polars unique)
| polars collect
╭───┬───╮
│ # │ a │
├───┼───┤
│ 0 │ 1 │
│ 1 │ 2 │
╰───┴───╯
Returns unique values in a subset of lazyframe columns
> [[a]; [2] [1] [2]]
| polars into-lazy
| polars select (polars col a | polars unique --maintain-order)
| polars collect
╭───┬───╮
│ # │ a │
├───┼───┤
│ 0 │ 2 │
│ 1 │ 1 │
╰───┴───╯
```
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
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No breaking changes. Users have the added option to use `polars unique`
in an expressions context.
# Tests + Formatting
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tests for the standard library
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Example tests have been added to `polars unique`
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Closes#14469
# Description
- ~~Implement the ``--unit`` conversion in "into int" command~~
- New ``ShellError::InvalidUnit`` unit if users enter wrong units
- Made ``ShellError::CantConvertToDuration`` more generic: became
``CantConvertToUnit``
- Tried to improve the way we parse units and get the supported units.
It's not complete, though, I will continue this refactoring in another
PR. But I already did some small refactorings in the "format duration"
and "format filesize" commands
- Add tests for "format filesize" and "format duration"
# User-Facing Changes
```nu
~> 1MB | format filesize sec
Error: nu:🐚:invalid_unit
× Invalid unit
╭─[entry #7:1:23]
1 │ 1MB | format filesize sec
· ─┬─
· ╰── encountered here
╰────
help: Supported units are: B, kB, MB, GB, TB, PB, EB, KiB, MiB, GiB, TiB, PiB, EiB
```
# Description
In preparation for https://github.com/nushell/reedline/pull/798, which
adds a new field to `Suggestion`, this PR makes sure that `Suggestion`s
are created using `..Default::default()` inside
`attribute_completions.rs`.
# User-Facing Changes
None
# Tests + Formatting
None
# After Submitting
# Description
This PR adds lazy closure evaluation to the `default` command (closes
#14160).
- For non-closure values and without providing a column name, `default`
acts the same as before
- The user can now provide multiple column names to populate if empty
- If the user provides a column name, the input must be a record or
list, otherwise an error is created.
- The user can now provide a closure as a default value
- This closure is run without any arguments or input
- The closure is never evaluated if the value isn't needed
- Even when column names are supplied, the closure is only run once (and
cached to prevent re-calling it)
For example:
```nushell
> default { 1 + 2 } # => 3
> null | default 3 a # => previously `null`, now errors
> 1 | default { sleep 5sec; 3 } # => `1`, without waiting 5 seconds
> let optional_var = null; $optional_var | default { input 'Enter value: ' } # => Returns user input
> 5 | default { input 'Enter value: ' } # => `5`, without prompting user
> ls | default { sleep 5sec; 'N/A' } name # => No-op since `name` column is never empty
> ls | default { sleep 5sec; 'N/A' } foo bar # => creates columns `foo` and `bar`; only takes 5 seconds since closure result is cached
# Old behavior is the same
> [] | default 'foo' # => []
> [] | default --empty 'foo' # => 'foo'
> default 5 # => 5
```
# User-Facing Changes
- Users can add default values to multiple columns now.
- Users can now use closures as the default value passed to `default`.
- To return a closure, the user must wrap the closure they want to
return inside another closure, which will be run (`default { $my_closure
}`).
# Tests + Formatting
All tests pass.
# After Submitting
---------
Co-authored-by: 132ikl <132@ikl.sh>
# Description
This PR fixes a bug where powershell scripts were only allowed to be
executed if they were in the directory that you executed them from. This
fix allows the scripts to be anywhere in the path.
closes#15759
# User-Facing Changes
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# Tests + Formatting
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- fixes#14896
- related to #15163
# Description
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This PR fixes the presence of ansi color codes in empty tables, when
`$env.config.table.show_empty = true` and `$env.config.use_ansi_coloring
= false`
# User-Facing Changes
Empty tables respect `$env.config.use_ansi_coloring`
# Tests + Formatting
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Added a test for this case.
# After Submitting
- fixes#15731
# Description
Existing bare word string interpolation only works if the string doesn't
start with a subxpression.
```nushell
echo fork(2)
# => fork2
echo (2)fork
# => Error: nu::parser::unclosed_delimiter
# =>
# => × Unclosed delimiter.
# => ╭─[entry #25:1:13]
# => 1 │ echo (2)fork
# => ╰────
```
This PR lifts that restriction.
```nushell
echo fork(2)
# => fork2
echo (2)fork
# => 2fork
```
This was first brought to my attention on discord with the following
command failing to parse.
```nushell
docker run -u (id -u):(id -g)
```
It now works.
# User-Facing Changes
# Tests + Formatting
No existing test broke or required tweaking. Additional tests covering
this case was added.
- 🟢 toolkit fmt
- 🟢 toolkit clippy
- 🟢 toolkit test
- 🟢 toolkit test stdlib
# After Submitting
---------
Co-authored-by: Bahex <17417311+Bahex@users.noreply.github.com>
# Description
Fixes#15128. Allows `path join` to use ByteStream pipeline data to join
on if it's coercible to string. Binary ByteStream input still results in
an error. Tested with `^$nu.current-exe -c '$nu.config-path' | path join
foo` and `^tar.exe -c assets/nu_logo.ico | path join foo`
# User-Facing Changes
If an external command returns a path, users would previously need to
use `^show-path-cmd | collect | path join 'foo'`, now they can drop the
intermediate `collect`.
Even with some experience in Nushell I did not find information about
the match syntax for alternative value matches. The `match` command help
does not mention it at all. I suggest we add an example.
Previously, the examples only had "advanced" matching operations. It
seems appropriate to start with the simplest one: Matching by value.
Add both of these examples.
# User-Facing Changes
`help match` and the [command reference
docs](https://www.nushell.sh/commands/docs/match.html) now have examples
for
* simple value matching
* alternative value matching
Fixes#15716
# Description
Returns None early if the input iterator is depleted.
# User-Facing Changes
Should be none
# Tests + Formatting
+1
# After Submitting
A small optimization;
Must be measurable on large tables.
In case of `scope commands` for me seems like a bit faster in debug
(~100ms).
But I've had like a few runs.
If someone is interested to check if it's any faster would be nice to
see it :)
cc: @fdncred
# Description
Fixes#9942
This adds a new `--minified` flag to `to nuon` which removes all
possible white space. I added an example test to demonstrate the
functionality.
# User-Facing Changes
New flag becomes available to the user.
ref #15653
Thanks for reproducible.
So @Bahex indeed padding was not properly handled.
I am not sure whether there's more issues related to your examples
@fdncred but I seems like don't get them.
Also added a test for future regressions (well to be honest didn't
tested that it's failing on main but at least at may catch something)
PS: Also got some panic related to #15138 (which PR fixed) :(
There's nothing on my end stopping me releasing a WASM issue fix; I just
sort of always worrying with releasing a `patch` (`0.0.x`)......and
there's 1 quite big thing I wanna do before a minor release.......
# Description
See [this
discussion](https://discord.com/channels/601130461678272522/1353434388938883143/1360664695962341647)
on discord
Goal: as the AST evaluator isn't supported anymore, I removed the body
of the "run" methods of some commands that were actually never run
because the IR is used instead.
Note: the code inside the "run_const" methods seems to be run, so I left
it.
Cc @132ikl
# User-Facing Changes
None
# Tests + Formatting
I didn't do any manual testing, I just ran the tests
# After Submitting
Nothing required I think
# Description
Move clear jobs to _after_ traversing them, in order to kill them.
# User-Facing Changes
None
# Tests + Formatting
It looks like it's only used once, in crates/nu-engine/src/exit.rs
Fixes#15675
I've added relevant test cases to ensure coverage of the identified bug.
The issue originated from my crate and pertains to the bracoxide
dependency—a bug I’ve internally referred to as IgnorantNumbers. I’ve
submitted a fix and updated the bracoxide dependency accordingly.
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# Description
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# User-Facing Changes
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# Tests + Formatting
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closes#15381
# Description
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Adds a new table mode called `single`, it looks like the `heavy` mode,
but the key difference is that it uses thinner lines. I decided on the
name `single` because it's one of the border styles Neovim uses, and
they look practically the same.
# User-Facing Changes
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helps us keep track of breaking changes. -->
New config option:
```nushell
$env.config.table.mode = 'single'
```
# Tests + Formatting
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Added new tests in `crates/nu-table/tests/style.rs` to cover the single
table mode.
# After Submitting
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A bug introduced by #14920
When `use module.nu` is called, all exported constants defined in it are
added to the scope.
# Description
On the branch of empty arguments, the constant var_id vector should be
empty, only constant_values (for `$module.foo` access) are injected.
# User-Facing Changes
# Tests + Formatting
~todo!~
adjusted
# After Submitting
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# Description
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This PR seeks to port over the `*_horizontal` commands in polars
rust/python (e.g.,
https://docs.pola.rs/api/python/stable/reference/expressions/api/polars.sum_horizontal.html),
which aggregate across multiple columns (as opposed to rows). See below
for several examples.
```nushell
# Horizontal sum across two columns (ignore nulls by default)
> [[a b]; [1 2] [2 3] [3 4] [4 5] [5 null]]
| polars into-df
| polars select (polars horizontal sum a b)
| polars collect
╭───┬─────╮
│ # │ sum │
├───┼─────┤
│ 0 │ 3 │
│ 1 │ 5 │
│ 2 │ 7 │
│ 3 │ 9 │
│ 4 │ 5 │
╰───┴─────╯
# Horizontal sum across two columns while accounting for nulls
> [[a b]; [1 2] [2 3] [3 4] [4 5] [5 null]]
| polars into-df
| polars select (polars horizontal sum a b --nulls)
| polars collect
╭───┬─────╮
│ # │ sum │
├───┼─────┤
│ 0 │ 3 │
│ 1 │ 5 │
│ 2 │ 7 │
│ 3 │ 9 │
│ 4 │ │
╰───┴─────╯
```
# User-Facing Changes
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helps us keep track of breaking changes. -->
No breaking changes. Users have access to a new command, `polars
horizontal`.
# Tests + Formatting
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Example tests were added to `polars horizontal`.
# After Submitting
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# Description
While working on something else, I noticed that
`Value::follow_cell_path` receives `self`.
While it would be ideal for the signature to be `(&'a self, cell_path)
-> &'a Value`, that's not possible because:
1. Selecting a row from a list and field from a record can be done with
a reference but selecting a column from a table requires creating a new
list.
2. `Value::Custom` returns new `Value`s when indexed.
So the signature becomes `(&'a self, cell_path) -> Cow<'a, Value>`.
Another complication that arises is, once a new `Value` is created, and
it is further indexed, the `current` variable
1. can't be `&'a Value`, as the lifetime requirement means it can't
refer to local variables
2. _shouldn't_ be `Cow<'a, Value>`, as once it becomes an owned value,
it can't be borrowed ever again, as `current` is derived from its
previous value in further iterations. So once it's owned, it can't be
indexed by reference, leading to more clones
We need `current` to have _two_ possible lifetimes
1. `'out`: references derived from `&self`
2. `'local`: references derived from an owned value stored in a local
variable
```rust
enum MultiLife<'out, 'local, T>
where
'out: 'local,
T: ?Sized,
{
Out(&'out T),
Local(&'local T),
}
```
With `current: MultiLife<'out, '_, Value>`, we can traverse values with
minimal clones, and we can transform it to `Cow<'out, Value>` easily
(`MultiLife::Out -> Cow::Borrowed, MultiLife::Local -> Cow::Owned`) to
return it
# User-Facing Changes
# Tests + Formatting
# After Submitting
---------
Co-authored-by: Bahex <17417311+Bahex@users.noreply.github.com>
- A few days back I've got this idea regarding recalculus of width.
Now it calculates step by step.
So 1 loop over all data was removed.
All though there's full recalculation in case of `header_on_border`
😞 (can be fixed..... but I decided to be short)
In perfect world it also shall be refactored ......
- Also have done small refactoring to switch build table from
`Vec<Vec<_>>>` to table itself. To hide internals (kind of still there's
things which I don't like).
It touched the `--expand` algorithm lightly you can see the tests
changes.
- And when doing that noticed one more opportunity, to remove HashMap
usage and directly use `tabled::ColoredConfig`. Which reduces copy
operations and allocations.
- And fixed a small issue where trailing column being using deleted
column styles.
To conclude optimizations;
I did small testing and it's not slower.
But I didn't get the faster results either.
But I believe it must be faster well in all cases, I think maybe bigger
tables must be tested.
Maybe someone could have a few runs to compare performance.
cc: @fdncred
# Description
When first using `http get`, I was confused that all the examples used a
list for headers, leading me to believe this was the only way, and it
seemed a little weird having records in the language. Then, I found out
that you can indeed use record, so I changed the example to show this
behavior in a way users can find. There still is another examples that
uses a list so there should be no problem there.
# User-Facing Changes
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# Tests + Formatting
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> ```
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remove j
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# Description
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# User-Facing Changes
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# Tests + Formatting
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# Description
This PR bumps reedline in nushell to the latest commit in the repo and
thiserror because it wouldn't compile without it, so that we can do some
quick testing to ensure there are no problems.
# User-Facing Changes
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Replace example on `date now | debug` with `date now | format date
"%+"`. Add RFC3339 "%+" format string example on `format date`.
Users can now find how to format date-time to RFC3339.
FIXES: #15168
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# Description
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Documentation will now provide users examples on how to print RFC3339
strings.
# User-Facing Changes
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Corrects documentation.
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# Description
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This PR seeks to add a quality-of-life feature that enables date and
datetime parsing of strings in `polars into-df`, `polars into-lazy`, and
`polars open`, and avoid the more verbose method of casting each column
into date/datetime. Currently, setting the schema to `date` on a `str`
column would silently error as a null column. See a comparison of the
current and proposed implementations.
The proposed implementation assumes a date format "%Y-%m-%d" and a
datetime format of "%Y-%m-%d %H:%M:%S" for naive datetimes and "%Y-%m-%d
%H:%M:%S%:z" for timezone-aware datetimes. Other formats must be
specified via parsing through `polars as-date` and `polars as-datetime`.
```nushell
# Current Implementations
> [[a]; ["2025-04-01"]] | polars into-df --schema {a: date}
╭───┬───╮
│ # │ a │
├───┼───┤
│ 0 │ │
╰───┴───╯
> [[a]; ["2025-04-01 01:00:00"]] | polars into-df --schema {a: "datetime<ns,*>"}
╭───┬───╮
│ # │ a │
├───┼───┤
│ 0 │ │
╰───┴───╯
# Proposed Implementation
> [[a]; ["2025-04-01"]] | polars into-df --schema {a: date}
╭───┬─────────────────────╮
│ # │ a │
├───┼─────────────────────┤
│ 0 │ 04/01/25 12:00:00AM │
╰───┴─────────────────────╯
> [[a]; ["2025-04-01 01:00:00"]] | polars into-df --schema {a: "datetime<ns,*>"}
╭───┬─────────────────────╮
│ # │ a │
├───┼─────────────────────┤
│ 0 │ 04/01/25 01:00:00AM │
╰───┴─────────────────────╯
> [[a]; ["2025-04-01 01:00:00-04:00"]] | polars into-df --schema {a: "datetime<ns,UTC>"}
╭───┬─────────────────────╮
│ # │ a │
├───┼─────────────────────┤
│ 0 │ 04/01/25 05:00:00AM │
╰───┴─────────────────────╯
```
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
No breaking changes. Users have the added option to parse string columns
into date/datetimes.
# Tests + Formatting
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No tests were added to any examples.
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# Description
This PR implements an experimental inter-job communication model,
through direct message passing, aka "mail"ing or "dm"ing:
- `job send <id>`: Sends a message the job with the given id, the root
job has id 0. Messages are stored in the recipient's "mailbox"
- `job recv`: Returns a stored message, blocks if the mailbox is empty
- `job flush`: Clear all messages from mailbox
Additionally, messages can be sent with a numeric tag, which can then be
filtered with `mail recv --tag`.
This is useful for spawning jobs and receiving messages specifically
from those jobs.
This PR is mostly a proof of concept for how inter-job communication
could look like, so people can provide feedback and suggestions
Closes #15199
May close#15220 since now jobs can access their own id.
# User-Facing Changes
Adds, `job id`, `job send`, `job recv` and `job flush` commands.
# Tests + Formatting
[X] TODO: Implement tests
[X] Consider rewriting some of the job-related tests to use this, to
make them a bit less fragile.
# After Submitting
# Description
Looks like `:nu` was forgotten about when the help system was
refactored.
# User-Facing Changes
# Tests + Formatting
# After Submitting
Co-authored-by: Bahex <17417311+Bahex@users.noreply.github.com>
# Description
Fixes: #15510
I think it's introduced by #14653, which changes `and/or` to `match`
expression.
After looking into `compile_match`, it's important to collect the value
before matching this.
```rust
// Important to collect it first
builder.push(Instruction::Collect { src_dst: match_reg }.into_spanned(match_expr.span))?;
```
This pr is going to apply the logic while compiling `and/or` operation.
# User-Facing Changes
The following will raise a reasonable error:
```nushell
> (nu --testbin cococo false) and true
Error: nu:🐚:operator_unsupported_type
× The 'and' operator does not work on values of type 'string'.
╭─[entry #7:1:2]
1 │ (nu --testbin cococo false) and true
· ─┬ ─┬─
· │ ╰── does not support 'string'
· ╰── string
╰────
```
# Tests + Formatting
Added 1 test.
# After Submitting
Maybe need to update doc
https://github.com/nushell/nushell.github.io/pull/1876
---------
Co-authored-by: Stefan Holderbach <sholderbach@users.noreply.github.com>
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# Description
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A friend of mine started using nushell on Windows and wondered why the
`cat` command wasn't available. I answered to him, that he can use `help
-f` or F1 to find the command but then we both realized that neither
`cat` nor `Get-Command` were part of `open`'s search terms. So I added
them.
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None.
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- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
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# Description
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The current implementation improperly inverts the conversion from
nanoseconds to the specified time units, resulting in nonsensical
Datetime and Duration parsing and integer overflows when the specified
time unit is not nanoseconds. This PR seeks to correct this conversion
by changing the multiplication to an integer division. Below are
examples highlighting the current and proposed implementations.
## Current Implementation
Specifying a different time unit incorrectly changes the returned value.
```nushell
> [[a]; [2024-04-01]] | polars into-df --schema {a: "datetime<ns,UTC>"}
╭───┬───────────────────────╮
│ # │ a │
├───┼───────────────────────┤
│ 0 │ 04/01/2024 12:00:00AM │
> [[a]; [2024-04-01]] | polars into-df --schema {a: "datetime<ms,UTC>"}
╭───┬───────────────────────╮
│ # │ a │
├───┼───────────────────────┤
│ 0 │ 06/27/2035 11:22:33PM │ <-- changing the time unit should not change the actual value
> [[a]; [1day]] | polars into-df --schema {a: "duration<ns>"}
╭───┬────────────────╮
│ # │ a │
├───┼────────────────┤
│ 0 │ 86400000000000 │
╰───┴────────────────╯
> [[a]; [1day]] | polars into-df --schema {a: "duration<ms>"}
╭───┬──────────────────────╮
│ # │ a │
├───┼──────────────────────┤
│ 0 │ -5833720368547758080 │ <-- i64 overflow
╰───┴──────────────────────╯
```
## Proposed Implementation
```nushell
> [[a]; [2024-04-01]] | polars into-df --schema {a: "datetime<ns,UTC>"}
╭───┬───────────────────────╮
│ # │ a │
├───┼───────────────────────┤
│ 0 │ 04/01/2024 12:00:00AM │
╰───┴───────────────────────╯
> [[a]; [2024-04-01]] | polars into-df --schema {a: "datetime<ms,UTC>"}
╭───┬───────────────────────╮
│ # │ a │
├───┼───────────────────────┤
│ 0 │ 04/01/2024 12:00:00AM │
╰───┴───────────────────────╯
> [[a]; [1day]] | polars into-df --schema {a: "duration<ns>"}
╭───┬────────────────╮
│ # │ a │
├───┼────────────────┤
│ 0 │ 86400000000000 │
╰───┴────────────────╯
> [[a]; [1day]] | polars into-df --schema {a: "duration<ms>"}
╭───┬──────────╮
│ # │ a │
├───┼──────────┤
│ 0 │ 86400000 │
╰───┴──────────╯
```
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
No user-facing breaking change.
Developer breaking change: to mitigate the silent overflow in
nanoseconds conversion functions `nanos_from_timeunit` and
`nanos_to_timeunit` (new), the function signatures were changed from
`i64` to `Result<i64, ShellError>`.
# Tests + Formatting
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No additional examples were added, but I'd be happy to add a few if
needed. The covering tests just didn't fit well into any examples.
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# Description
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This PR enables the option to set a column type to `decimal` in the
`--schema` parameter of `polars into-df` and `polars into-lazy`
commands. This option was already available in `polars open`, which used
the underlying polars io commands that already accounted for decimal
types when specified in the schema.
See below for a comparison of the current and proposed implementation.
```nushell
# Current Implementation
> [[a b]; [1 1.618]]| polars into-df -s {a: u8, b: 'decimal<4,3>'}
Error: × Error creating dataframe: Unsupported type: Decimal(Some(4), Some(3))
# Proposed Implementation
> [[a b]; [1 1.618]]| polars into-df -s {a: u8, b: 'decimal<4,3>'} | polars schema
╭───┬──────────────╮
│ a │ u8 │
│ b │ decimal<4,3> │
╰───┴──────────────╯
```
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
No breaking change. Users has the new option to specify decimal in
`--schema` in `polars into-df` and `polars into-lazy`.
# Tests + Formatting
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An example in `polars into-df` was modified to showcase the decimal
type.
# After Submitting
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