datafusion_python::datafusion_common::runtime

Function set_join_set_tracer

Source 
pub fn set_join_set_tracer(
    tracer: &'static dyn JoinSetTracer,
) -> Result<(), JoinSetTracerError>
Expand description

Set the custom tracer for both futures and blocking closures.

This should be called once at startup. If called more than once, an Err(JoinSetTracerError) is returned. If not called at all, a no-op tracer that does nothing is used.