release-20.2: opt: fix fetch scope in UPDATE..FROM statements #61557
Conversation
This file contains 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
Previously, the fetch scope incorrectly included columns in the FROM clause of an UPDATE..FROM statement. As a result, column names shared by the FROM clause and the mutating table lead to ambiguity when resolving partial index DEL column expressions. This commit ensures that the fetch scope does not include columns in the FROM clause. Fixes cockroachdb#61284 Release justification: This is a low-risk bug fix to existing functionality. Release note (bug fix): An UPDATE..FROM statement where the FROM clause contained column names that match table column names erred if the table had a partial index predicate referencing those columns. This bug, present since partial indexes were released in version 20.2.0, has been fixed.
|
This change is |
RaduBerinde
approved these changes
Mar 5, 2021
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
Backport 1/1 commits from #61522.
/cc @cockroachdb/release
Previously, the fetch scope incorrectly included columns in the FROM
clause of an UPDATE..FROM statement. As a result, column names shared by
the FROM clause and the mutating table lead to ambiguity when resolving
partial index DEL column expressions. This commit ensures that the fetch
scope does not include columns in the FROM clause.
Fixes #61284
Release justification: This is a low-risk bug fix to existing
functionality.
Release note (bug fix): An UPDATE..FROM statement where the FROM clause
contained column names that match table column names erred if the table
had a partial index predicate referencing those columns. This bug,
present since partial indexes were released in version 20.2.0, has been
fixed.