mysql is generally smart enough to figure out which index is better based on cardinality of index. While posting sort index is better for low item high # of SLE scenario it's bad for high item variety each with lower count of SLEs.
mysql is generally smart enough to figure out which index is better based on cardinality of index. While posting sort index is better for low item high # of SLE scenario it's bad for high item variety each with lower count of SLEs.