Question 1

How to connect to Cassandra with gocql?

Accepted Answer

Use gocql.NewCluster() to define hosts, set the keyspace in cluster.Keyspace, then create a session with CreateSession(). TLS and password authentication are configurable via cluster settings for secure connections.

Question 2

gocql vs gocqlx: which is better?

Accepted Answer

gocql provides the core, low-level driver for maximum control and performance, while gocqlx adds conveniences like struct binding and named queries. Use gocqlx for faster development, or gocql if you need fine-tuned access to Cassandra features.

Question 3

Does gocql support vector search?

Accepted Answer

Yes, gocql supports vector types in Cassandra 5.0+ for vector search capabilities, allowing integration with AI/ML workloads through the native protocol. Ensure your Cassandra version is 5.0 or higher to use this feature.

Question 4

How to handle pagination in gocql?

Accepted Answer

Configure query page size with Query.PageSize() for automatic paging, or use iter.PageState() and Query.SetPageState() for manual control over large result sets, optimizing memory usage and performance.

Question 5

What's the best way to map Go structs to Cassandra tables?

Accepted Answer

gocql requires manual marshaling with the Bind API or using external packages. For easier mapping, use gocqlx which provides struct tags and automatic binding, reducing boilerplate code and errors.

Question 6

Is gocql compatible with ScyllaDB?

Accepted Answer

Yes, gocql is fully compatible with ScyllaDB as it uses the same CQL binary protocol. It's a reliable choice for high-performance alternatives to Cassandra, with tested support in production environments.

gocql

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