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  1. MariaDB Server
  2. MDEV-12836

Avoid table rebuild when removing of auto_increment settings

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Details

    • 10.2.12, 5.5.59

    Description

      Basically, it's a request to implement upstream feature request:

      https://bugs.mysql.com/bug.php?id=72109

      Copying the table to just drop auto_increment attribute:

      MariaDB [test]> create table t(id int auto_increment not null, key(id)) engine=InnoDB;
      		 
      Query OK, 0 rows affected (0.22 sec)
      		 
       
      		 
      MariaDB [test]> alter table t modify column id int not null, algorithm=inplace; 
      ERROR 1846 (0A000): ALGORITHM=INPLACE is not supported. Reason: Cannot change column type INPLACE. Try ALGORITHM=COPY

      is awful in production. Workarounds exist, but why not to do this in-place and without copying all the data?

      Attachments

        Issue Links

          blocks

          Task - A task that needs to be done. MDEV-11424 Instant ALTER TABLE of failure-free record format changes

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-19272 virtual enum_alter_inplace_result ha_innobase::check_if_supported_inplace_alter(TABLE*, Alter_inplace_info*): Assertion `((((*af)->unireg_check) & 127U) == Field::NEXT_NUMBER) == (((f->unireg_check) & 127U) == Field::NEXT_NUMBER)' failed.

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-26224 InnoDB fails to remove AUTO_INCREMENT attribute

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-11335 Changing delay_key_write option for MyISAM table should not copy rows

          • Major - Major loss of function.
          • Closed

          Activity

            People

              serg Sergei Golubchik
              valerii Valerii Kravchuk
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              Dates

                Created:
                Updated:
                Resolved:

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