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Fix "Index out of bounds" when input to the group-by filter is empty. #4369 (#4382)

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* Fix "index out of bounds" when input to group-by is empty #4369

* Fix formatting #4369

* Adds test for empty input

Co-authored-by: Ray Henry <ray.henry@thermofisher.com>
This commit is contained in:
Ray Henry
2022-02-09 09:47:47 -05:00
committed by GitHub
parent f9e1c4ef50
commit 94ab981235
2 changed files with 16 additions and 2 deletions
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4
crates/nu-command/src/filters/group_by.rs
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@ -95,8 +95,6 @@ pub fn group_by(
let mut keys: Vec<Result<String, ShellError>> = vec![];
let mut group_strategy = Grouper::ByColumn(None);
let first = values[0].clone();
if values.is_empty() {
return Err(ShellError::SpannedLabeledError(
"expected table from pipeline".into(),
@ -105,6 +103,8 @@ pub fn group_by(
));
}
let first = values[0].clone();
let value_list = Value::List {
vals: values.clone(),
span: name,