[Monetdb-developers] regarding execution plan
hello, I want to make graph or tree of the final plan which monetdb uses to execute the xquery. I am running the monetdb server in debug mode = "2097152" & I am trying to make graph/tree of the output which I am getting in this mode but unable to do. So can any one help me in finding the graph/tree of the final plan which monetdb uses to execute the query . plz reply as soon as possible.
thank you.
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Hi,
as we tried to explain multiple times before, the output you get with debug mask 2097152 is only useful for debugging the runtime choice/behavior of a few selected operation. It is far from complete and does surely not represent the whole query plan.
Having said that, MonetDB/XQuery does not provide any means to visualize the execution plan other than the MIL program that the stand-alone XQuery compiler "pf" produces (see `pf -h` & `pf -H` for details).
Of course, by parsing this MIL program and analysing the data dependencies, you can easily create a dataflow graph --- if that's what you're after.
Stefan
On Mon, Apr 05, 2010 at 12:25:27AM +0530, Puneet Birwa wrote:
hello, I want to make graph or tree of the final plan which monetdb uses to execute the xquery. I am running the monetdb server in debug mode = "2097152" & I am trying to make graph/tree of the output which I am getting in this mode but unable to do. So can any one help me in finding the graph/tree of the final plan which monetdb uses to execute the query . plz reply as soon as possible.
thank you.
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participants (2)
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Puneet Birwa
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Stefan Manegold