information_schema.locales.*

show items implemented by
relation column mysqlmariadbtidbpostgrescockroachdbmssql
locales  
decimal_point unsupported NULL: unsupported unsupported unsupported unsupported
description unsupported NULL: unsupported unsupported unsupported unsupported
error_message_language unsupported NULL: unsupported unsupported unsupported unsupported
id unsupported NULL: unsupported unsupported unsupported unsupported
max_day_name_length unsupported NULL: unsupported unsupported unsupported unsupported
max_month_name_length unsupported NULL: unsupported unsupported unsupported unsupported
name unsupported NULL: unsupported unsupported unsupported unsupported
thousand_sep unsupported NULL: unsupported unsupported unsupported unsupported