Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

planner: fix control add 56318 #19694

Open
wants to merge 2 commits into
base: release-7.5
Choose a base branch
from
+6 −0
Open

planner: fix control add 56318 #19694

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
838b692
update
EricZequan Dec 13, 2024
a83eb35
update
EricZequan Dec 13, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 6 additions & 0 deletions optimizer-fix-controls.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -76,3 +76,9 @@ SET SESSION tidb_opt_fix_control = '44262:ON,44389:ON';
- Default value: `OFF`
- Possible values: `ON`, `OFF`
- This variable controls whether the optimizer explores enforced plans during query optimization after finding an unenforced plan.

### [`56318`](https://github.com/pingcap/tidb/issues/56318) <span class="version-mark">New in v7.5.0</span>

- Default value: `ON`
- Possible values: `ON`, `OFF`
- This variable controls whether to avoid calculating the heavy expression used in ORDER BY stmt twice.
Copy link
Collaborator

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
- This variable controls whether to avoid calculating the heavy expression used in ORDER BY stmt twice.
- This variable controls whether to avoid calculating the heavy expression used in `ORDER BY` twice.

Loading