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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2020/06/18 20:59:38 UTC
[GitHub] [beam] apilloud opened a new pull request #12036: [BEAM-10267] ZetaSQLCalc makes grpc call per row
apilloud opened a new pull request #12036:
URL: https://github.com/apache/beam/pull/12036
I like to delete code. This is a large performance improvement, it is 4.2x as fast on Nexmark Query 0, 4.7x on Query 13.
Instead of a separate query for `condition` and each `column` the query looks like this:
`CASE WHEN condition THEN ROW(column1, column2, ...) ELSE NULL END`
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[GitHub] [beam] robinyqiu merged pull request #12036: [BEAM-10267] ZetaSQLCalc makes grpc call per row
Posted by GitBox <gi...@apache.org>.
robinyqiu merged pull request #12036:
URL: https://github.com/apache/beam/pull/12036
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[GitHub] [beam] apilloud commented on pull request #12036: [BEAM-10267] ZetaSQLCalc makes grpc call per row
Posted by GitBox <gi...@apache.org>.
apilloud commented on pull request #12036:
URL: https://github.com/apache/beam/pull/12036#issuecomment-646927728
Perf numbers are in the PR description (this is 4.2x as fast on Nexmark Query 0), the biggest improvement here is that column count is no longer a factor in execution time. This also enables further optimizations.
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[GitHub] [beam] apilloud commented on pull request #12036: [BEAM-10267] ZetaSQLCalc makes grpc call per row
Posted by GitBox <gi...@apache.org>.
apilloud commented on pull request #12036:
URL: https://github.com/apache/beam/pull/12036#issuecomment-646883845
R: @robinyqiu
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