[MDEV-263] reverse multi-ranges Created: 2012-05-08 Updated: 2015-11-17 |
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| Status: | Open |
| Project: | MariaDB Server |
| Component/s: | None |
| Fix Version/s: | None |
| Type: | Task | Priority: | Major |
| Reporter: | Sergei Golubchik | Assignee: | Unassigned |
| Resolution: | Unresolved | Votes: | 1 |
| Labels: | None | ||
| Description |
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read_range and multi_read_range handler methods allow the engine to optimize index accesses. But they're only used for ascending index scans. They should be extended to work for descending index scans too. [1] https://lists.launchpad.net/maria-developers/msg04680.html |