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Angie Byron authored
#196862 by Damien Tournoud, et al: Replace COUNT(*) queries with SELECT 1 ... LIMIT 1 queries when all that's required is a check for whether rows exist.
f577c125
#196862 by Damien Tournoud, et al: Replace COUNT(*) queries with SELECT 1 ... LIMIT 1 queries when all that's required is a check for whether rows exist.