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MySQL Slow Queries Log: Lock_time

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Special Forums UNIX and Linux Applications MySQL Slow Queries Log: Lock_time
# 1  
Old 03-23-2009
MySQL Slow Queries Log: Lock_time
In MySQL's slow queries log, it'll have an entry like this:

Code:
# User@Host: scc_service[scc_service] @  [192.168.249.209]
# Query_time: 43  Lock_time: 0  Rows_sent: 0  Rows_examined: 0
SET timestamp=1237769209;
UPDATE loan SET funding_status="scheduled",datetime_approved=now() WHERE loan_id = '00000';

What does Lock_time refer to? Is that how long the query spent waiting for a lock, or how long this query locked the database?
# 2  
Old 03-26-2009
Lock_time indicates the time spent waiting for a lock, due to another query holding a lock
# 3  
Old 03-26-2009
Fantastic, thanks.
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