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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2018/12/15 06:14:50 UTC
[GitHub] kiszk edited a comment on issue #23171: [SPARK-26205][SQL] Optimize
In for bytes, shorts, ints
kiszk edited a comment on issue #23171: [SPARK-26205][SQL] Optimize In for bytes, shorts, ints
URL: https://github.com/apache/spark/pull/23171#issuecomment-447540932
Comment about JIT code generation for switch statement. Regardless of lookupswitch/tableswitch, JIT compiler generations native instructions suitable for data size/density (binary tree, table lookup, (or simple if-then?)).
It would be good to see [this article](https://stackoverflow.com/questions/44988841/force-tableswitch-instead-of-lookupswitch).
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