LP:797687 - Inconsistent costs for group by queries with and without index access

Description

https://bugs.launchpad.net/maria/+bug/797687

This is not a new bug, but it has been recently switched from milestone 5.3 to 5.5, so it needs an entry in JIRA.
Fix version 5.5.23 is temporary.

Environment

None

Status

Assignee

Timour Katchaounov

Reporter

Elena Stepanova

Labels

None

Time tracking

0m

Fix versions

Priority

Minor
Configure