Cherry pick #78500 to 25.3: Disable parallelize query processing right after reading FROM when distributed_aggregation_memory_efficient enabled#86904
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robot-clickhouse-ci-2 merged 5 commits intobackport/25.3/78500from Sep 9, 2025
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…stributed_aggregation_memory_efficient enabled
Disable parallelize query processing right after reading FROM when distributed_aggregation_memory_efficient enabled
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backport/25.3/78500
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Original pull-request #78500
Do not merge this PR manually
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.
Troubleshooting
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 pull-request for
pr-backports-createdlabel, and delete if it's presented thereThe PR source
The PR is created in the CI job