[cherry-pick](branch-2.1) Pick "[Fix](delete command) Mark delete sign when do delete command in MoW table (#35917)" #37594
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…table (apache#35917) close apache#34551 Problem: As shown in the issue above, if a key deleted by a delete statement is written to by updating only certain columns, the data will not display correctly. Reason: The delete statement deletes the data by writing a delete predicate, which is stored in the rowset meta and applied during data retrieval to filter the data. However, partial column updates do not consider the effect of the delete predicate when reading the original data. The imported key should be considered as a new key (since it has already been deleted), but it is actually treated as an old key. Therefore, only some columns are updated, leading to incorrect results. Solution: Consider the delete predicate during partial column updates, but this method will result in reading more columns, as shown in apache#35766. Thus, in this PR, we change the delete operation in the mow table from writing a delete predicate to writing a delete sign, which effectively resolves the issue.
…d mode (apache#37151) Problem: The `test_new_partial_update` case fails to run in cloud mode, but it passes in local mode. Reason: In PR apache#35917, we introduced a new table attribute `enable_light_delete`. When executing schema changes with `alter table set xxx` statements, the local and cloud modes process the logic differently. The cloud mode has its unique processing logic, which was not addressed in the mentioned PR, leading to failures in the cloud environment. Solution: To resolve the issue, we need to complete the missing schema change logic for the cloud mode. Once this is implemented, the problem should be resolved.
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clang-tidy review says "All clean, LGTM! 👍" |
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clang-tidy review says "All clean, LGTM! 👍" |
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Proposed changes
Issue Number: close #xxx
Pick #35917 and #37151