H HANDLER, 2626 Handlers, 2807 Handler_commit status variable, 954 Handler_delete status variable, 954 Handler_discover status variable, 4197 Handler_external_lock status variable, 954 Handler_mrr_init status variable, 954 Handler_prepare status variable, 955 Handler_read_first status variable, 955 Handler_read_key status variable, 955 Handler_read_last status variable, 955 Handler_read_next status variable, 955 Handler_read_prev status variable, 955 Handler_read_rnd status variable, 955 Handler_read_rnd_next status variable, 955 Handler_rollback status variable, 955 Handler_savepoint status variable, 955 Handler_savepoint_rollback status variable, 955 Handler_update status variable, 955 Handler_write status variable, 956 hash index, 6155 hash indexes, 1722 hash join new features, 31 hash partitioning, 4675 hash partitions managing, 4693 splitting and merging, 4693 HashiCorp Vault configuring, 1422 HashiCorp Vault certificate and key files configuring, 1419 have_compress system variable, 804 have_crypt removed features, 45 HAVE_CRYPT removed features, 45 have_dynamic_loading system variable, 804 have_geometry system variable, 804 have_openssl system variable, 804 have_profiling system variable, 804 HAVE_PSI_MEMORY_INTERFACE option CMake, 233 have_query_cache system variable, 805 have_rtree_keys system variable, 805 have_ssl system variable, 805 have_statement_timeout system variable, 805 have_symlink system variable, 806 HAVING clause, 2664 HDD, 6155 header file keyword_list.h, 4801 5395