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Clock synchronization column in system.query_log #78234

@UnamedRus

Description

@UnamedRus

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Use case

Different ClickHouse nodes can have misaligned clocks.
So, for distributed tracing, it would be nice to be able synchronize clocks across multiple nodes.

Describe the solution you'd like

It can be implemented as new column in system.query_log: event_timestamp_ms_from_initial_node

Describe alternatives you've considered

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