查询Clickhouse以获取当前安装的版本

Question

我知道有一堆系统表。如果有人可以访问这些，我在哪里可以找到当前安装的版本？

Answer 1

SELECT version()
┌─version()───┐
│ 20.9.1.4571 │
└─────────────┘

SELECT *
FROM system.build_options
┌─name──────────────────────┬─value────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ VERSION_FULL              │ ClickHouse 20.9.1.4571                                                                                                                       │
│ VERSION_DESCRIBE          │ v20.9.1.4571-testing

Answer 2

通过HTTP:获取CH版本的另外两种方法

# send the wrong query to standard CH endpoint to find the version at the end of the response
http://ch_server_hostname_or_ip:8123/?query=hello
# depends on the access settings you get 
# either 'Code: 62, .. Exception: Syntax error .. (version 20.3.12.112 (official build))'
# or 'Code: 516, .. Authentication failed .. (version 20.3.12.112 (official build))'

# look at Prometheus-endpoint that contains the required metric
http://ch_server_hostname_or_ip:custom_port/metrics
# ..
# ClickHouseMetrics_VersionInteger 20003012
# ..