v.21.12Backward Incompatible Changes
Fix for Direct Select Behavior in Kafka/RabbitMQ/FileLog
A fix for a feature that previously had unwanted behaviour. Do not allow direct select for Kafka/RabbitMQ/FileLog. Can be enabled by settingstream_like_engine_allow_direct_select. Direct select will be not allowed even if enabled by setting, in case there is an attached materialized view. For Kafka and RabbitMQ direct selectm if allowed, will not commit massages by default. To enable commits with direct select, user must use storage level settingkafka{rabbitmq}_commit_on_select=1(default0). #31053 (Kseniia Sumarokova).