zhangyue-hashdata opened a new pull request, #1327: URL: https://github.com/apache/cloudberry/pull/1327
In process_sample_rows(), when initializing funcTupleDesc for table columns, the column number should start from NUM_SAMPLE_FIXED_COLS + 1 (5) instead of 4. The first 4 columns (1-4) are reserved for fixed columns: - Column 1: totalrows (FLOAT8OID) - Column 2: totaldeadrows (FLOAT8OID) - Column 3: oversized_cols_length (FLOAT8ARRAYOID) - Column 4: NDV array (FLOAT8ARRAYOID) Table columns should start from column 5, so the correct formula is: (AttrNumber) NUM_SAMPLE_FIXED_COLS + 1 + index This bug is harmless because funcTupleDesc's column type information is not actually used in subsequent processing - only the column count (natts) is used. The actual type information is obtained dynamically via lookup_rowtype_tupdesc(). However, it's still worth fixing for code correctness and maintainability. <!-- Thank you for your contribution to Apache Cloudberry (Incubating)! --> Fixes #ISSUE_Number ### What does this PR do? <!-- Brief overview of the changes, including any major features or fixes --> ### Type of Change - [ ] Bug fix (non-breaking change) - [ ] New feature (non-breaking change) - [ ] Breaking change (fix or feature with breaking changes) - [ ] Documentation update ### Breaking Changes <!-- Remove if not applicable. If yes, explain impact and migration path --> ### Test Plan <!-- How did you test these changes? --> - [ ] Unit tests added/updated - [ ] Integration tests added/updated - [ ] Passed `make installcheck` - [ ] Passed `make -C src/test installcheck-cbdb-parallel` ### Impact <!-- Remove sections that don't apply --> **Performance:** <!-- Any performance implications? --> **User-facing changes:** <!-- Any changes visible to users? --> **Dependencies:** <!-- New dependencies or version changes? --> ### Checklist - [ ] Followed [contribution guide](https://cloudberry.apache.org/contribute/code) - [ ] Added/updated documentation - [ ] Reviewed code for security implications - [ ] Requested review from [cloudberry committers](https://github.com/orgs/apache/teams/cloudberry-committers) ### Additional Context <!-- Any other information that would help reviewers? Remove if none --> ### CI Skip Instructions <!-- To skip CI builds, add the appropriate CI skip identifier to your PR title. The identifier must: - Be in square brackets [] - Include the word "ci" and either "skip" or "no" - Only use for documentation-only changes or when absolutely necessary --> --- <!-- Join our community: - Mailing list: [d...@cloudberry.apache.org](https://lists.apache.org/list.html?d...@cloudberry.apache.org) (subscribe: dev-subscr...@cloudberry.apache.org) - Discussions: https://github.com/apache/cloudberry/discussions --> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@cloudberry.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cloudberry.apache.org For additional commands, e-mail: commits-h...@cloudberry.apache.org
