Hello everyone, I'm implementing a CUDA based sorting on PostgreSQL, and I believe it can improve the ORDER BY statement performance in 4 to 10 times. I already have a generic CUDA sort that performs around 10 times faster than std qsort. I also managed to load CUDA into pgsql. Since I'm new to pgsql development, I replaced the code of pgsql qsort_arg to get used with the way postgres does the sort. Everything looks easy and "GPU-able". The only problem is that I can't use the qsort_arg_comparator comparator function on GPU, I need to implement my own. I didn't find out how to access the sorting key value data of the tuples on the Tuplesortstate or SortTuple structures. If I solve this problem I'll make a really big step forward. Cheers, Vítor Uwe Reus -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
