DROP TABLE if exists b_perf_test;
DROP TABLE if exists b_perf_error;
DROP TABLE if exists b_perf_cache;
DROP TABLE if exists b_perf_sql_backtrace;
DROP TABLE if exists b_perf_sql;
DROP TABLE if exists b_perf_component;
DROP TABLE if exists b_perf_hit;
DROP TABLE if exists b_perf_cluster;
DROP TABLE if exists b_perf_tab_column_stat;
DROP TABLE if exists b_perf_tab_stat;
DROP TABLE if exists b_perf_index_suggest_sql;
DROP TABLE if exists b_perf_index_suggest;
DROP TABLE if exists b_perf_index_ban;
DROP TABLE if exists b_perf_index_complete;
DROP TABLE if exists b_perf_history;