MariaDB

  1. Bug #631504
  2. Comment #3

Comment 3 for bug 631504

Revision history for this message
Philip Stoev (pstoev-askmonty) wrote :

SergeyP, unfortunately your solution has disconnected the EXPLAIN output from the optimizer switches that control it. In other words, a user would not know that if he gets a " Rowid-ordered scan" , he should use optimizer_use_mrr=disable to disable it. Previously, MRR was mentioned both in EXPLAIN and in the mysqld option.