dfr query for dataframe

Query dataframe using SQL. Note: The dataframe is always named 'df' in your query's from clause.

Signature

> dfr query

Examples

Query dataframe using SQL

> [[a b]; [1 2] [3 4]] | dfr into-df | dfr query 'select a from df'
╭───┬───╮
│ # │ a │
├───┼───┤
│ 0 │ 1 │
│ 1 │ 3 │
╰───┴───╯