https://www.percona.com/blog/low-value-in-range_optimizer_max_mem_size-might-cause-full-table-scan/
Low Value in range_optimizer_max_mem_size Might Cause Full Table Scan - Percona
Apr 27, 2026 - What problem does range_optimizer_max_mem_size cause if it is not properly sized? Let's find out with an example!
full table scanlowvaluerangeoptimizer
https://jira.mariadb.org/browse/MDEV-20609?attachmentSortBy=dateTime
[MDEV-20609] Full table scan in INFORMATION_SCHEMA.PARAMETERS/ROUTINES - Jira
full table scaninformation schemaparametersroutinesjira