@hackage cql-io0.14.2

Cassandra CQL client.

CQL Cassandra driver supporting native protocol versions 2 and 3.

This library uses the cql library which implements Cassandra's CQL protocol and complements it with the neccessary I/O operations. The feature-set includes:

  • Node discovery. The driver discovers nodes automatically from a small set of bootstrap nodes.

  • Customisable load-balancing policies. In addition to pre-built LB policies such as round-robin, users of this library can provide their own policies if desired.

  • Support for connection streams. Requests can be multiplexed over a few connections.

  • Customisable retry settings. Support for default retry settings as well as local overrides per query.

  • Prepared queries. Prepared queries are an optimisation which parse and prepare a query only once on Cassandra nodes but execute it many times with different concrete values.