VACUUM PARALLEL option vs. max_parallel_maintenance_workers

[Peter Eisentraut]

If I read the code correctly, the VACUUM PARALLEL option is capped by 
the active max_parallel_maintenance_workers setting.  So if I write 
VACUUM (PARALLEL 5), it will still only do 2 by default.  Is that 
correct?  The documentation (VACUUM man page) seems to indicate a 
different behavior.

I haven't been able to set up something to test or verify this either way.
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Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services