[9.2] ESQL: Fix projection generation when pruning left join (#135446)#136078
Merged
elasticsearchmachine merged 1 commit intoelastic:9.2from Oct 7, 2025
Merged
[9.2] ESQL: Fix projection generation when pruning left join (#135446)#136078elasticsearchmachine merged 1 commit intoelastic:9.2from
elasticsearchmachine merged 1 commit intoelastic:9.2from
Conversation
Currently, in case the join key is (locally) null, the whole join is replaced with an `Eval` and a `Project`. The project however contain only reference attributes. This is insufficient, in case the attribute should point to another attribute pointing to a literal `null` added in the `Eval`. This fixes that by allowing the generated `Project` to contain `NamedExpression`s, which can then be proper `Alias`es. This is done by adjusting the join output calculation to work with the `NamedExpression`s, instead of just `Attribute`s.
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Backports the following commits to 9.2: