[MDEV-7763] Alter table operation that resize length of varchar type column allows concurrent DML. Created: 2015-03-12 Updated: 2017-06-01 Resolved: 2017-06-01 |
|
| Status: | Closed |
| Project: | MariaDB Server |
| Component/s: | Data Definition - Alter Table, Storage Engine - InnoDB |
| Fix Version/s: | 10.2.6 |
| Type: | Task | Priority: | Major |
| Reporter: | frank.zhang | Assignee: | Unassigned |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Description |
|
Innodb engine in MySQL 5.7 will support in-place ALTER TABLE as long as the number of length bytes required by varchar column remains the same.Thus, has mariadb(xtradb engine) the same plan?This improvement will much enhance the availability and usablity for db maintance operation,after this task can be implemented.THX~~ |
| Comments |
| Comment by Sergei Golubchik [ 2015-03-12 ] |
|
Yes, we plan to merge this feature eventually. But Oracle is still making development milestone releases of 5.7, we don't know when InnoDB-5.7 will be GA, and it might happen that it won't be ready in time for 10.1. |
| Comment by Sergei Golubchik [ 2017-06-01 ] |
|
I suppose this is fixed, MariaDB 10.2 uses InnoDB 5.7 |