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CREATE TABLE ontime_replica2 ON CLUSTER clickhouse_cluster
(...)
ENGINE = ReplicatedMergeTree(
'/clickhouse_cluster/tables/{shard}/ontime_replica',
'{replica}',
FlightDate,
(Year, FlightDate),
8192);
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prefer_localhost_replica¶
Enables/disables preferable using the localhost replica when processing distributed queries.
Possible values:
1 — ClickHouse always sends a query to the localhost replica if it exists.
0 — ClickHouse uses the balancing strategy specified by the load_balancing setting.
Default value: 1.
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A