Convert left correlated join to inner join during transformation#19922
Merged
sopel39 merged 1 commit intotrinodb:masterfrom Nov 27, 2023
Merged
Convert left correlated join to inner join during transformation#19922sopel39 merged 1 commit intotrinodb:masterfrom
sopel39 merged 1 commit intotrinodb:masterfrom
Conversation
It's possible to simplify outer join to inner join when subquery side is at least scalar. This makes sure dynamic filters are propagated to left join side and more efficient (cross join) implementaiton is used.
sopel39
force-pushed
the
ks/fix_regression
branch
from
5696215 to
1db0ece
Compare
findepi
approved these changes
Nov 27, 2023
...n/src/main/java/io/trino/sql/planner/iterative/rule/TransformUncorrelatedSubqueryToJoin.java
Show resolved
Hide resolved
Closed
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
It's possible to simplify outer join to inner
join when subquery side is at least scalar.
This makes sure dynamic filters are propagated
to left join side and more efficient (cross join)
implementaiton is used.