dfr query for dataframe

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

WARNING

Dataframe commands were not shipped in the official binaries by default, you have to build it with --features=dataframe flag

Signature

> dfr query {flags} (sql)

Parameters

  • sql: sql query

Input/output types:

inputoutput
anyany

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 
╰───┴───╯