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grouping_operation, duplicates_removal: EXPLAIN FORMAT=JSON has all details about GROUP BY

MySQL Performance Blog - Tue, 05/01/2016 - 1:45am

In the previous EXPLAIN FORMAT=JSON is Cool! series blog post, we discussed the  [crayon-568b3fc49b43b984658518-i/]  member (which is child of [crayon-568b3fc49b44d051216498-i/]). Let’s now focus on the [crayon-568b3fc49b456131010417-i/]  and other details of [crayon-568b3fc49b45d091965110-i/]  processing. [crayon-568b3fc49b464060166912-i/] simply shows the details of what happens ...

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