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# Continuation of tests for optimizer trace. # Those need DBUG_EXECUTE_IF. --source include/have_optimizer_trace.inc --source include/have_debug.inc --echo # We want to make sure that the common case of --echo # a connection which has not enabled tracing, --echo # is optimized, i.e. neither Opt_trace_context_impl nor --echo # Opt_trace_context_stmt is created. # make server crash if it creates Opt_trace_stmt set debug="d,no_new_opt_trace_stmt"; # tracable but tracing is off select 1; # non-tracable select * from information_schema.OPTIMIZER_TRACE; # non-tracable set @a=25; # Force creation of Opt_trace_context_impl and Opt_trace_stmt set debug="default"; set optimizer_trace="enabled=on"; select 2; select * from information_schema.OPTIMIZER_TRACE; set optimizer_trace="enabled=off"; set debug="d,no_new_opt_trace_stmt"; # tracable, but tracing is off again (thd->opt_trace->is_started() is false) select 3; # should see only trace of "select 2" select * from information_schema.OPTIMIZER_TRACE;