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Currently there are mechanism to mark a system variable as deprecated, but they are only used to print warning messages when a deprecated variable is set. Leverage the existing mechanisms in order to make the deprecation information available at the --help output of mysqld by: * Moving the deprecation information (i.e `deprecation_substitute` attribute) from the `sys_var` class into the `my_option` struct. As every `sys_var` contains its own `my_option` struct, the access to the deprecation information remains available to `sys_var` objects. `my_getotp` functions, which works directly with `my_option` structs, gain access to this information while building the --help output. * For plugin variables, leverages the `PLUGIN_VAR_DEPRECATED` flag and set the `deprecation_substitute` attribute accordingly when building the `my_option` objects. * Change the `option_cmp` function to use the `deprecation_substitute` attribute instead of the name when sorting the options. This way deprecated options and the substitutes will be grouped together. All new code of the whole pull request, including one or several files that are either new files or modified ones, are contributed under the BSD-new license. I am contributing on behalf of my employer Amazon Web Services, Inc. |
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| .. | ||
| async_example.c | ||
| client_metadata.h | ||
| client_priv.h | ||
| CMakeLists.txt | ||
| completion_hash.cc | ||
| completion_hash.h | ||
| connection_pool.cc | ||
| connection_pool.h | ||
| echo.c | ||
| mariadb-conv.cc | ||
| my_readline.h | ||
| mysql.cc | ||
| mysql_plugin.c | ||
| mysql_upgrade.c | ||
| mysqladmin.cc | ||
| mysqlbinlog.cc | ||
| mysqlcheck.c | ||
| mysqldump.cc | ||
| mysqlimport.c | ||
| mysqlshow.c | ||
| mysqlslap.c | ||
| mysqltest.cc | ||
| readline.cc | ||