Join speed improved

After some benches we have discover that loop on small joins (when only one record on the left and few on the right) is not fast enough.

We have two major algorithms internally and we have discover that the first takes only 50 seconds on 10000 loops, while the second takes hundreds of seconds…So problem presents in the second algorithm.

Improved.

Now the second algorithm takes 120 second. And we can add yet choice condition to choose the first for such case of small joins…

I think we will be able to improve the second alg yet to 70-80 sec. And may be with more complex changes it is possible to speed both after that …

Published by

Ruslan Zasukhin

VP Engineering and New Technology Paradigma Software, Inc

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