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ordering_operation: EXPLAIN FORMAT=JSON knows everything about ORDER BY processing

MySQL Performance Blog - Sat, 09/01/2016 - 6:25am
EXPLAIN FORMAT=JSONWe’ve already discussed using the ORDER BY clause with subqueries. You can also, however, use the [crayon-5690aff4d4839416071471-i/] clause with sorting results of one of the columns. Actually, this is most common way to use this clause. Sometimes such queries ...