Exec runs a command and returns its exit code:
At ClickHouse, we regularly release new features. In some cases, new features are marked "experimental" or "beta", which means they would benefit from a period of real-world usage and feedback from the community. Beta features are officially supported by the ClickHouse team and are on a path to becoming production-ready. Experimental features are early prototypes driven by either the ClickHouse team or the community and are not officially supported. Eventually, these features evolve to the point of being deemed "production ready", or deprecated if it turns out they are not generally useful or there is another way to achieve the original goal.
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Some have speculated if the visit can still go ahead. But there are signs it is still on. Officials from both sides are due to meet to discuss the trip, Reuters reports.
В Финляндии предупредили об опасном шаге ЕС против России09:28