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Problem: After the re-design of `UPDATE` and `DELETE` in MDEV-28883, the call to find select handler is missing. This prevents the server from handring over multi-update/multi-delete queries to storage engines capable of executng such queries on their own (e.g., ColumnStore). MDEV-32382 introduced a check in `find_select_handler_inner` function, that blocked pushdown of queries involving CTEs, without checking if the storage engine is capable of handling such queries. Fix: Add a call to find the select handler for the engine involved in the multi-update/multi-delete query, allowing the storage engines to execute such queries. Fix the `find_select_handler_inner` function by allowing the storage engine's create_select functions to decide the pushdown of queries involving CTEs. |
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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 | ||