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Update release notes for 3.0.11

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Borys Belinsky
2018-07-03 15:29:54 +03:00
parent 440194097e
commit d0bebbdc04
1 changed files with 23 additions and 19 deletions
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docs/release_notes.rst
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@@ -6,30 +6,34 @@ v3.0.11 released
Improvements
* :jirabug:`PT-1571`: Improved hostname recognition in ``pt-secure-collect``
* :jirabug:`PT-1569`: Disabled ``--alter-foreign-keys-method=drop_swap`` in pt-online-schema-change
* :jirabug:`PT-1562`: ``pt-mysql-summary``: Fix mysqld command for Travis
* :jirabug:`PT-242` : (``pt-stalk``) Include SHOW SLAVE STATUS on 5.7 (Thanks Marcelo Altmann)
* :jirabug:`PT-1571`: Improved hostname recognition in ``pt-secure-collect``
* :jirabug:`PT-1569`: Disabled ``--alter-foreign-keys-method=drop_swap`` in ``pt-online-schema-change``
* :jirabug:`PT-1562`: ``pt-mysql-summary``: Fix the ``mysqld`` command for Travis
* :jirabug:`PT-242`: (``pt-stalk``) Include ``SHOW SLAVE STATUS`` on MySQL 5.7 (Thanks Marcelo Altmann)
Fixed bugs
Fixed bugs
* :jirabug:`PT-1570`: ``pt-archiver`` fails to detect columns with the word GENERATED as part of the comment
* :jirabug:`PT-1563`: Fixed ``pt-show-grants`` for MySQL 5.6
* :jirabug:`PT-1551`: ``pt-table-checksum`` fails on MySQL 8.0.11
* :jirabug:`PT-241` : (``pt-stalk``) Slave queries doesn't run on 5.7 (Thanks Marcelo Altmann)
* :jirabug:`PT-1570`: ``pt-archiver`` fails to detect columns with the word *GENERATED* as part of the comment
* :jirabug:`PT-1563`: Fixed ``pt-show-grants`` for MySQL 5.6
* :jirabug:`PT-1551`: ``pt-table-checksum`` fails on MySQL 8.0.11
* :jirabug:`PT-241`: (``pt-stalk``) Slave queries don\'t run on MySQL 5.7 (Thanks Marcelo Altmann)
Breaking changes:
Breaking changes:
Starting with this version, queries checksum in ``pt-query-digest`` has been changed to use a full MD5 field
as a CHAR(32) field instead of storing just the less signitficant bytes of the checksum as a BIGINT field.
The reasson for this change is that in MySQL 8, storing only the less significant bytes as a BIGINT was producing
non-reliable results. For example, the same query on MySQL 5.6+ was producing a different result in MySQL 8, and
that could lead to (help me here to say confusing results?).
Starting with this version, the queries checksum in ``pt-query-digest`` will
use the full MD5 field as a CHAR(32) field instead of storing just the least
significant bytes of the checksum as a BIGINT field. The reason for this
change is that storing only the least significant bytes as a BIGINT was
producing inconsistent results in MySQL 8 compared to MySQL 5.6+. For example,
the same query on MySQL 5.6+ would produce a checksum different from that
received in MySQL 8; this could cause the validation to fail.
``pt-online-schema-change`` in MySQL 8:
Due to an `error in MySQL 8.0+ <https://bugs.mysql.com/bug.php?id=89441>`_ it is not possible to use the ``drop_swap``
method to rebuild constraints because renaming a table will cause to lose the foreign keys. You must specify a different
method expicitly.
``pt-online-schema-change`` in MySQL 8:
Due to an `error in MySQL 8.0+ <https://bugs.mysql.com/bug.php?id=89441>`_, it
is not possible to use the ``drop_swap`` method to rebuild constraints because
renaming a table will result in losing the foreign keys. You must specify a
different method explicitly.
v3.0.10 released 2018-05-21
===========================