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  1. MariaDB Server
  2. MDEV-15223

Document that InnoDB's native partitioning was not merged into MariaDB

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    Description

      We can see that InnoDB's native partitioning from MySQL 5.7 was not merged into MariaDB from the following commit message:

      https://github.com/MariaDB/server/commit/358ab5d6b1460b7ab6e2d58c0444bf4a54a8f44b

      However, this doesn't seem to be documented. Maybe it should be documented somewhere in the InnoDB and/or Partitioning sections?

      https://mariadb.com/kb/en/library/partitioning-tables/

      https://mariadb.com/kb/en/library/xtradb-and-innodb/

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-15242 Poor RBR update performance with partitioned tables

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

          Task - A task that needs to be done. MDEV-6113 merge 5.7 innodb

          • Major - Major loss of function.
          • Closed

          Activity

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            greenman Ian Gilfillan added a comment -

            This has been documented in https://mariadb.com/kb/en/library/incompatibilities-and-feature-differences-between-mariadb-102-and-mysql-57/ and https://mariadb.com/kb/en/library/mariadb-vs-mysql-compatibility/#incompatibilities-between-mariadb-101-and-mysql-57

            Is this sufficient? I don't think it needs to be added to the InnoDB or partitioning sections. Both those sections are fairly incomplete, so the priority should be document what is there. not what isn't, but that's another issue...

            greenman Ian Gilfillan added a comment - This has been documented in https://mariadb.com/kb/en/library/incompatibilities-and-feature-differences-between-mariadb-102-and-mysql-57/ and https://mariadb.com/kb/en/library/mariadb-vs-mysql-compatibility/#incompatibilities-between-mariadb-101-and-mysql-57 Is this sufficient? I don't think it needs to be added to the InnoDB or partitioning sections. Both those sections are fairly incomplete, so the priority should be document what is there. not what isn't, but that's another issue...
            GeoffMontee Geoff Montee (Inactive) added a comment -

            That does sound sufficient. Thanks!

            Although, if we don't manage to fix MDEV-15242, then it may also be a good idea to add a disclaimer to the documentation section on partitioning that it can negatively affect replication performance. That seems to be tied to the lack of native partitioning, since MySQL 5.7 performs quite a bit better.

            GeoffMontee Geoff Montee (Inactive) added a comment - That does sound sufficient. Thanks! Although, if we don't manage to fix MDEV-15242 , then it may also be a good idea to add a disclaimer to the documentation section on partitioning that it can negatively affect replication performance. That seems to be tied to the lack of native partitioning, since MySQL 5.7 performs quite a bit better.
            greenman Ian Gilfillan added a comment -

            Also documented the slowness on the partitioning limitations page.

            greenman Ian Gilfillan added a comment - Also documented the slowness on the partitioning limitations page.

            People

              greenman Ian Gilfillan
              GeoffMontee Geoff Montee (Inactive)
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                Updated:
                Resolved:

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