Changed subquery on index_resumable_operations to use 'state' instead… #480
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
We felt a huge performance improvement by changing this subquery to use "state = 1" instead of "state_desc = 'PAUSED'".
In the test scenario this query return about 130k rows. After applying the change, the time for this query went from 20 minutes to 20 seconds. If there are rows on sys.index_resumable_operations, the performance gain is even bigger.