Contains a history of all prefetches done during reading from MergeTree tables backed by a remote filesystem. It is safe to truncate or drop this table at any time. Columns:Documentation Index
Fetch the complete documentation index at: https://private-7c7dfe99-test-mutation-observers.mintlify.app/llms.txt
Use this file to discover all available pages before exploring further.
hostname(LowCardinality(String))event_date(Date)event_time(DateTime)query_id(String)path(String)offset(UInt64)size(Int64)prefetch_submit_time(DateTime64(6))priority(Int64)prefetch_execution_start_time(DateTime64(6))prefetch_execution_end_time(DateTime64(6))prefetch_execution_time_us(UInt64)state(String)thread_id(UInt64)reader_id(String)