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columns Issue: - Purge thread attempts to purge a secondary index record that is not delete-marked. Root Cause: - When a secondary index includes a virtual column whose v_pos is greater than the number of fields in the clustered index record, the virtual column is incorrectly skipped while reading from the undo record. - This leads the purge logic to incorrectly assume it is safe to purge the secondary index record. - The code also confuses the nth virtual column with the nth stored column when writing ordering columns at the end of the undo record. Fix: - In trx_undo_update_rec_get_update(): Skip a virtual column only when v_pos == FIL_NULL, not when v_pos is greater than the number of fields. - In trx_undo_page_report_modify(): Ensure ordering columns are written based on the correct stored-column positions, without confusing them with virtual-column positions. |
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| archive | ||
| blackhole | ||
| columnstore | ||
| connect | ||
| csv | ||
| example | ||
| federated | ||
| federatedx | ||
| heap | ||
| innobase | ||
| maria | ||
| mroonga | ||
| myisam | ||
| myisammrg | ||
| oqgraph | ||
| perfschema | ||
| rocksdb | ||
| sequence | ||
| sphinx | ||
| spider | ||
| test_sql_discovery | ||