Query Options for the SET Statement
You can specify the following options using the
SET statement, and those settings affect all
queries issued from that session.
Some query options are useful in day-to-day operations for improving usability, performance, or flexibility.
Other query options control special-purpose aspects of Impala operation and are intended primarily for advanced debugging or troubleshooting.
Options with Boolean parameters can be set to 1 or
true to enable, or 0 or
to turn off.
In Impala 2.0 and later, you can set query options directly through the JDBC and ODBC interfaces by using the
SET statement. Formerly,
SET was only available as a command within the
In Impala 2.11 and later, you can set query options for an impala-shell session
by specifying one or more command-line arguments of the form
See impala-shell Configuration Options for details.