Function dont_cache_this_sql

db/sql_stmt_cache.c:506–509

This is called at the time of put_prepared_stmt_int() * to determine whether the given sql should be cached. * We should not cache ddl stmts, analyze commands, * rebuild commands, truncate commands, explain commands. * Ddl stmts and explain commands should not get to * put_prepared_stmt_int() so are not handled in this function. * However, most of these cases are now handled via the custom

 * EXPLAIN case.
 */
static inline int dont_cache_this_sql(struct sql_state *rec)
{
    return sqlite3_stmt_isexplain(rec->stmt);
}

/* return code of 1 means we encountered an error and the caller
 * needs to cleanup this rec->stmt */