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--disable_warnings
drop table if exists con, aux, nul, lpt1, com1, `clock$`;
--enable_warnings
create table con (a int);
drop table con;
create table aux (a int);
drop table aux;
create table nul (a int);
drop table nul;
create table lpt1 (a int);
drop table lpt1;
create table com1 (a int);
drop table com1;
create table `clock$` (a int);
drop table `clock$`;
select convert(convert(',' using filename) using binary);
--echo #
--echo # MDEV-7677 my_charset_handler_filename has a wrong "ismbchar" member
--echo #
SET NAMES utf8;
SELECT @a:=CONVERT('aя' USING filename) AS `@a`, BINARY @a, REVERSE(@a), HEX(@a), HEX(REVERSE(@a));
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