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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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| .. | ||
| row0ext.cc | ||
| row0ftsort.cc | ||
| row0import.cc | ||
| row0ins.cc | ||
| row0log.cc | ||
| row0merge.cc | ||
| row0mysql.cc | ||
| row0purge.cc | ||
| row0quiesce.cc | ||
| row0row.cc | ||
| row0sel.cc | ||
| row0uins.cc | ||
| row0umod.cc | ||
| row0undo.cc | ||
| row0upd.cc | ||
| row0vers.cc | ||