Cherry pick #103843 to 26.4: Preserve known identifiers in obfuscateQuery#103974
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robot-ch-test-poll1 merged 1 commit intobackport/26.4/103843from May 6, 2026
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The original PR fixes both the SQL `obfuscateQuery` function (which does not exist in 26.4) and `clickhouse-format --obfuscate`. The root-cause fix in `TableFunctionFactory::isTableFunctionName` — consulting aliases and the case-insensitive map in addition to the exact-case map — is the only part that applies to 26.4 and is sufficient to preserve known table function names (including aliases like `VALUES` and `url`) when running `clickhouse-format --obfuscate`. Original pull-request: #103843 Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Original pull-request #103843
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