Cherry pick #80791 to 25.5: Fix bitNot() for String to return a zero-terminated string#80823
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robot-ch-test-poll2 merged 2 commits intobackport/25.5/80791from May 26, 2025
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Previuosly, due to bitNot() ignores row boundaries, it inverts the NUL
byte as well, but some code relies on the fact that String are NUL
terminated, i.e. the following will fail in debug build:
SELECT hex(any(bitNot('foo')))
With chassert() from StringValueCompatibility::getDataAtWithTerminatingZero():
Logical error: 'res.data[res.size] == '\0'
Restore NUL byte after the inversion.
Fix bitNot() for String to return a zero-terminated string
robot-ch-test-poll2
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robot-ch-test-poll2
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Original pull-request #80791
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 #80791 for
pr-backports-createdlabel and delete it.Manually merging will do nothing. The
pr-backports-createdlabel prevents the original PR #80791 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 #80791 for
pr-backports-created, and delete if it's presented thereThe PR source
The PR is created in the CI job