v.25.8Improvement
Add support of remote* table
Add support ofremote*table functions with parallel replicas if cluster is provided inaddress_expressionargument. Also, fixes #73295. #82904 (Igor Nikonov).
Why it matters
This feature enables users to leverage parallel replica queries inremote* table functions when connecting to a cluster, improving query performance and fault tolerance by distributing queries across multiple replicas. It also addresses issue #73295 to enhance the reliability and scalability of remote table functions.How to use it
Specify a cluster name in theaddress_expression argument of any remote* table function. ClickHouse will automatically connect to parallel replicas within the cluster, allowing query execution to be distributed and parallelized across those replicas.