monetdb - Is concurrent query execution supported -

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is concurrent query execution supported in monetdb?

while testing simultaneous query execution found 1 query getting executed @ 1 time. rest of queries put of hold until first 1 gets completed. test database has 13 million records, trying run same query 3 clients connected same monetdb server.

example of query:

select field1,field2,count(*) def.testdata group field1,field2

i missing here. there multi user mode setting?

i running on 2 cpu 16gb host

parallel query execution (of course) supported. however, there bug might lead sequential behavior, in 2-cpu setting. see https://www.monetdb.org/bugzilla/show_bug.cgi?id=3665 . has been fixed, not released yet. checkout oct2014 branch our source repository (hg clone http://dev.monetdb.org/hg/monetdb/; cd monetdb; hg update oct2014) , compile it.


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