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Session::prepare
ΒΆSession::prepare
prepares a query on all connections. If tracing is enabled for the Query
to prepare, the resulting PreparedStatement
will contain prepare_tracing_ids
. prepare_tracing_ids
is a list of tracing ids of prepare requests on all connections.
use scylla::query::Query;
use scylla::prepared_statement::PreparedStatement;
use scylla::tracing::TracingInfo;
use uuid::Uuid;
// Prepare the query with tracing enabled
let mut to_prepare: Query = Query::new("SELECT a FROM ks.tab");
to_prepare.set_tracing(true);
let mut prepared: PreparedStatement = session
.prepare(to_prepare)
.await?;
// Now there are tracing ids for each prepare request
let tracing_ids: &[Uuid] = &prepared.prepare_tracing_ids;
for id in tracing_ids {
// Query tracing info from system_traces.sessions and system_traces.events
let tracing_info: TracingInfo = session.get_tracing_info(id).await?;
println!("tracing_info: {:#?}", tracing_info);
}
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