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achat asked Erick Ramirez commented

Is Materialized View still experimental in Cassandra 4.0?

Are MV Still experimental feature is Cassandra 4.0?
cc: @Erick Ramirez

materialized views
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Erick Ramirez answered Erick Ramirez commented

Yes, materialized views are still considered experimental. In the latest Cassandra 4.0.3, the feature is still disabled by default:

# Enables materialized view creation on this node.
# Materialized views are considered experimental and are not recommended for production use.
enable_materialized_views: false

The recommendations I documented in the FAQ "Should we reconsider using materialized views?" still applies. Cheers!

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Thanks for quick reply @Erick Ramirez . Is it same in Datastax Enterprise as well or using DSE we get some tooling to help with issues mentioned with MVs?

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DataStax Enterprise includes several fixes for known issues with MVs that aren't available yet in open-source Cassandra so DSE doesn't suffer from the same issues as OSS C*.

There were discussions in the developer mailing list around 12 months ago (probably more) on the subject of porting the fixes to OSS Cassandra. Understandably it stalled since everyone was occupied with releasing 4.0 so I'm sure it will be revisited at some point. Cheers!

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