polars selector empty for expression
Create an empty selector that matches no columns. Useful as a base for selector composition.
This command requires a plugin
The polars selector empty command resides in the polars plugin. To use this command, you must install and register nu_plugin_polars. See the Plugins chapter in the book for more information.
Command Type
plugin
Signature
> polars selector empty {flags}
Input/output types:
| input | output |
|---|---|
| any | polars_selector |
Examples
Create an empty selector that matches no columns
> polars selector empty