accessing intermediate optimizer results.
zeroxwj at gmail.com
Fri Apr 1 07:00:35 CEST 2016
I would like to see the intermediate result (i.e., MAL instructions) after
each optimizer step in a optimizer pipeline.
So I searched Monetdb's documents and found the following sentence in
"Alternatively, the SQL DEBUG statement modifier in combination with the
'o' command provides access to the intermediate optimizer results."
I cannot figure out what this sentence means.
What I know about SQL DEBUG statement is to use "debug <SQL statement>" to
enter the debug mode and iterate through each (final) MAL instruction one
How could I use 'o' command to access intermediate optimizer results?
I am using MonetDB 11.21.17 (JUL2015 SP3) and my environment is Ubuntu14.04.
Thank you very much.
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