polardbxengine/mysql-test/suite/sys_vars/t/log_error_func.test

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# Test for BUG#51215 "log-error partially works with version 5.5"
# when --log-error is used without argument
# check displayed value. We can check only the base name, the rest
# depends on paths, symbolic links, --vardir, etc...
--disable_warnings
select (@err_log:=variable_value)*0 from performance_schema.global_variables where variable_name="log_error";
--enable_warnings
select instr(@err_log, "some_random_name5435413.err")>0;
# Check file's existence. The displayed value may be relative or not.
let $err_log=`select @err_log`;
let $err_log_relative=`select instr(@err_log, ".")=1`;
if ($err_log_relative)
{
let $MYSQLD_DATADIR= `SELECT @@datadir`;
file_exists $MYSQLD_DATADIR/$err_log;
}
if (!$err_log_relative)
{
file_exists $err_log;
}