Solve issue #37655 #1
Open
Conversation
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
[PR 35087](apache#35087) introduced an explicit fail in large joins with Acero when key data is larger than 4GB (solving the problem reported by [issue 34474](apache#34474)). However, I think (but I'm not sure) that this quick fix is too restrictive because the total size condition is applied to the total size of tables to be joined, rather than to the size of keys. As a consequence, Acero fails when trying to merge large tables, even when the size of key data is well below 4 GB. This PR modifies the source code so that the logical test only verifies whether the total size of _key variable_ is below 4 GB.
Remove trailing whitespace
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Outdated suggestions cannot be applied.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.
PR 35087 introduced an explicit fail in large joins with Acero when key data is larger than 4GB (solving the problem reported by issue 34474). However, I think (but I'm not sure) that this quick fix is too restrictive because the total size condition is applied to the total size of tables to be joined, rather than to the size of keys. As a consequence, Acero fails when trying to merge large tables, even when the size of key data is well below 4 GB.
This PR modifies the source code so that the logical test only verifies whether the total size of key variable is below 4 GB.
Rationale for this change
What changes are included in this PR?
Are these changes tested?
Are there any user-facing changes?