# Expected Diagnosis: intermittent-query-failures-during-partition-maintenance

The expected result should converge on the case-specific mechanism below while
keeping conclusions bounded by the collected evidence.

## Expected conclusion

An InfoSchema v2 directory-page GC bug removed a directory page still needed by a transaction pinned to an older schema version while REORGANIZE PARTITION published a new schema. The old transaction could not use the new page and reported Table doesn't exist. Retry must start a new transaction; the durable fix is the InfoSchema GC correction associated with tidb#66527.

## Required evidence chain

- Treat Table doesn't exist as a transient metadata/versioning failure, not as evidence that the table was dropped.
- Identify the InfoSchema v2 directory-page GC defect and explain how the transaction remained pinned to an older schema during partition DDL.
- State that retrying inside the same transaction cannot refresh the schema snapshot; a new transaction is required.
- Recommend a hotfix or upgrade containing the InfoSchema GC correction.