设置查询执行时间上限

如何强制限制查询的最大执行时间

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问题

如何为我的查询强制设置时间限制？

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答案

你可以使用 max_execution_time 参数设置：

clickhouse-cloud :) SELECT 1 SETTINGS max_execution_time=0.0001

SELECT 1
SETTINGS max_execution_time = 0.0001

Query id: 3db752a7-b94f-4456-b3b9-ccbf290d1394

0 rows in set. Elapsed: 0.113 sec.

Received exception from server (version 23.5.1):
Code: 159. DB::Exception: Received from service.aws.clickhouse.cloud:9440. DB::Exception: Timeout exceeded: elapsed 0.000557862 seconds, maximum: 0.0001. (TIMEOUT_EXCEEDED)