batching-multiple-queries.md

Batch queries

TODO: rework this section

CDRS Session supports batching few queries in a single request to Apache Cassandra via implementing cdrs::query::BatchExecutor trait:

// batch two queries
use cdrs::query::{BatchQueryBuilder, QueryBatch};

let mut queries = BatchQueryBuilder::new();
queries = queries.add_query_prepared(&prepared_query);
queries = queries.add_query("INSERT INTO my.store (my_int) VALUES (?)", query_values!(1 as i32));
session.batch_with_params(queries.finalyze());

// batch queries with tracing and warning information
use cdrs::query::{BatchQueryBuilder, QueryBatch};

let with_tracing = true;
let with_warnings = true;
let mut queries = BatchQueryBuilder::new();
queries = queries.add_query_prepared(&prepared_query);
queries = queries.add_query("INSERT INTO my.store (my_int) VALUES (?)", query_values!(1 as i32));
session.batch_with_params_tw(queries.finalyze(), with_tracing, with_warnings);