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MDEV-20401: Server incorrectly auto-sets lower_case_file_system value

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Server auto-sets lower_case_file_system value based on default
datadir's behavior instead of instead of using the directory specified
by the user through the configuration file or command line options.

This patch fixes this problem.
This commit is contained in:
Julius Goryavsky 2020-05-12 13:29:17 +02:00
parent 147d4b1ec0
commit b3cae9db11
2 changed files with 6 additions and 4 deletions
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8
sql/mysqld.cc
View File

@ -4674,8 +4674,10 @@ static int init_common_variables()
get corrupted if accesses with names of different case.
*/
DBUG_PRINT("info", ("lower_case_table_names: %d", lower_case_table_names));
if(mysql_real_data_home_ptr == NULL || *mysql_real_data_home_ptr == 0)
mysql_real_data_home_ptr= mysql_real_data_home;
SYSVAR_AUTOSIZE(lower_case_file_system,
test_if_case_insensitive(mysql_real_data_home));
test_if_case_insensitive(mysql_real_data_home_ptr));
if (!lower_case_table_names && lower_case_file_system == 1)
{
if (lower_case_table_names_used)
@ -4692,7 +4694,7 @@ static int init_common_variables()
{
if (global_system_variables.log_warnings)
sql_print_warning("Setting lower_case_table_names=2 because file "
"system for %s is case insensitive", mysql_real_data_home);
"system for %s is case insensitive", mysql_real_data_home_ptr);
SYSVAR_AUTOSIZE(lower_case_table_names, 2);
}
}
@ -4703,7 +4705,7 @@ static int init_common_variables()
sql_print_warning("lower_case_table_names was set to 2, even though your "
"the file system '%s' is case sensitive. Now setting "
"lower_case_table_names to 0 to avoid future problems.",
mysql_real_data_home);
mysql_real_data_home_ptr);
SYSVAR_AUTOSIZE(lower_case_table_names, 0);
}
else

2
sql/sys_vars.cc
View File

@ -839,7 +839,7 @@ static Sys_var_ulong Sys_connect_timeout(
static Sys_var_charptr Sys_datadir(
"datadir", "Path to the database root directory",
READ_ONLY GLOBAL_VAR(mysql_real_data_home_ptr),
PARSED_EARLY READ_ONLY GLOBAL_VAR(mysql_real_data_home_ptr),
CMD_LINE(REQUIRED_ARG, 'h'), IN_FS_CHARSET, DEFAULT(mysql_real_data_home));
#ifndef DBUG_OFF