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btr_search_guess_on_hash(): Only set BTR_CUR_HASH_FAIL on actual mismatch. If the page latch cannot be acquired, the hash search might very well have succeeded. Do not count that as a failure, that is, do not unnecessarily invoke btr_search_update_hash_ref() after a normal search. Set cursor->flag=BTR_CUR_HASH_ABORT if the current parameters of the adaptive hash index are not suitable for the search and a call to btr_cur_t::search_info_update() might help. btr_cur_t::search_leaf(): Do not invoke search_info_update() if btr_search_guess_on_hash() failed due to contention. btr_cur_t::pessimistic_search_leaf(): Do not invoke search_info_update() on the change buffer tree. Preivously, this condition was being checked inside search_info_update(). |
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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 | ||