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MDEV-29258 Failing assertion for name length on RENAME TABLE

trx_undo_page_report_rename(): Use the correct maximum length of
a table name. Both the database name and the table name can be up to
NAME_CHAR_LEN (64 characters) times 5 bytes per character in the
my_charset_filename encoding. They are not encoded in UTF-8!

fil_op_write_log(): Reserve the correct amount of log buffer for
a rename operation. The file name will be appended by
mlog_catenate_string().

rename_file_ext(): Reserve a large enough buffer for the file names.
This commit is contained in:
Marko Mäkelä
2022-08-30 10:59:31 +03:00
parent 0d1de5e1d1
commit b260903832
5 changed files with 31 additions and 8 deletions

View File

@ -11,6 +11,13 @@ CREATE TABLE `d255`.`_##################################################`
ERROR HY000: Long database name and identifier for object resulted in path length exceeding 512 characters. Path: './@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023/_@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023@0023
CREATE TABLE `d255`.`##################################################`
(a INT PRIMARY KEY, FOREIGN KEY(a) REFERENCES test.t(a)) ENGINE=InnoDB;
#
# MDEV-29258 Failing assertion for name length on RENAME TABLE
#
CREATE TABLE `d255`.`d245` (x INT) ENGINE=InnoDB;
DROP TABLE `d255`.`d250`;
RENAME TABLE `d250#`.`d245` TO `d250#`.`d250`;
RENAME TABLE `d255`.`d250` TO a;
DROP DATABASE `d255`;
DROP TABLE t;
DROP TABLE a,t;
# End of 10.3 tests

View File

@ -38,8 +38,23 @@ eval CREATE TABLE `$d255`.`_$d250`
--replace_result $d255 d255
eval CREATE TABLE `$d255`.`$d250`
(a INT PRIMARY KEY, FOREIGN KEY(a) REFERENCES test.t(a)) ENGINE=InnoDB;
--echo #
--echo # MDEV-29258 Failing assertion for name length on RENAME TABLE
--echo #
let $d245=-------------------------------------------------;
--replace_result $d245 d245 $d255 d255
eval CREATE TABLE `$d255`.`$d245` (x INT) ENGINE=InnoDB;
--replace_result $d250 d250 $d255 d255
eval DROP TABLE `$d255`.`$d250`;
--replace_result $d245 d245 $d250 d250 d255 d255
eval RENAME TABLE `$d255`.`$d245` TO `$d255`.`$d250`;
--replace_result $d250 d250 $d255 d255
eval RENAME TABLE `$d255`.`$d250` TO a;
--replace_result $d255 d255
eval DROP DATABASE `$d255`;
DROP TABLE t;
DROP TABLE a,t;
--echo # End of 10.3 tests