"table_states", "disk_io", "disk_usage"};
static int def_queries_num = STATIC_ARRAY_SIZE(def_queries);
"table_states", "disk_io", "disk_usage"};
static int def_queries_num = STATIC_ARRAY_SIZE(def_queries);
static int c_psql_begin(c_psql_database_t *db) {
PGresult *r = PQexec(db->conn, "BEGIN");
static int c_psql_begin(c_psql_database_t *db) {
PGresult *r = PQexec(db->conn, "BEGIN");