v.19.14Performance Improvement
Optimize Queries with ORDER BY Expressions Clause, Where Expressions Have Coinciding Prefix with Sorting Key in Mergetree Tables
Optimize queries withORDER BY expressionsclause, whereexpressionshave coinciding prefix with sorting key inMergeTreetables. This optimization is controlled byoptimize_read_in_ordersetting. #6054 #6629 (Anton Popov)