Cherry pick #78205 to 25.3: Fix prefetch of substreams with prefixes in Wide parts#78527
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robot-clickhouse merged 5 commits intobackport/25.3/78205from Apr 1, 2025
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Co-authored-by: Smita Kulkarni <Smita.Kulkarni@clickhouse.com>
Fix prefetch of substreams with prefixes in Wide parts
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Original pull-request #78205
This pull-request is a first step of an automated backporting.
It contains changes similar to calling
git cherry-picklocally.If you intend to continue backporting the changes, then resolve all conflicts if any.
Otherwise, if you do not want to backport them, then just close this pull-request.
The check results does not matter at this step - you can safely ignore them.
Note
This pull-request will be merged automatically. Please, do not merge it manually (but if you accidentally did, nothing bad will happen).
Troubleshooting
If the PR was manually reopened after being closed
If this PR is stuck (i.e. not automatically merged after one day), check #78205 for
pr-backports-createdlabel and delete it.Manually merging will do nothing. The
pr-backports-createdlabel prevents the original PR #78205 from being processed.If the conflicts were resolved in a wrong way
If this cherry-pick PR is completely screwed by a wrong conflicts resolution, and you want to recreate it:
pr-cherrypicklabel from the PRYou also need to check the original PR #78205 for
pr-backports-created, and delete if it's presented there