Hi Amit, On 03/27/2018 06:42 AM, Amit Langote wrote:
I have managed to make the recursion go away in the attached updated version. I guess that's the result of employing the idea of a "output register" for individual pruning steps as mentioned in Robert's email upthread where he detailed the "pruning steps" approach [1].With the new patch, pruning steps for arguments of, say, an OR clause are not performed recursively. Instead, each pruning step is performed independently and its output is stored in a slot dedicated to it. Combine steps are always executed after all of the steps corresponding to its arguments have been executed. That's ensured by the way steps are allocated.
Running v41 with "partition_prune" under valgrind gives the attached report. Best regards, Jesper
25970.log.gz
Description: application/gzip
