Log Message:
databases/percona-toolkit: Update to 3.0.6.

v3.0.6 released 2018-01-04

New Features
- Improve pt-table-sync support for MyRocks
- pt-stalk now checks the RocksDB status
- pt-mysql-summary contains the RocksDB section
- pt-osc shows a message if trying to set the engine to rocksdb and
  binlog_format != row.
- pt-table-checksum skips RocksDB tables.

Known Issues
- The information message implemented for PT-204 has a typo when
  referring to the --ignore-engines parameter. This problem is planned
  to be fixed in the next release.
- It has been detected that the implementation of PT-205 is not
  complete and pt-osc may fail when altering tables. This problem is
  planned to be fixed in the next release.

Bug Fixes
- The general log parser cannot handle timestamps which include time
  zones
- pt-online-schema-change does not retry on a deadlock error when
  using Percona Server 5.7
- pt-table-checksum ignores generated columns

v3.0.5 released 2017-11-20

New Features
- Improve MongoDB Profiler for PMM and PT
- The mongodb-query-digest supports MongoDB versions lower than 3.2;
  incorrect output was fixed.
- The pt-summary, pt-mysql-summary, pt-mongodb-summary commands
  provide output in the the JSON format.
- pt-mysql-summary shows the output of the Show Slave Hosts command.
- pt-table-sync supports replication channels (requires MySQL version
  5.7.6 or higher)

Bug fixes
- pt-mext fails if the Rsa_public_key variable is empty.
- pt-mongodb-query-digest --version produced incorrect values.
- pt-online-schema-change incorrectly processed virtual columns.
- pt-online-schema-change command reported an error when the name of
  an index contained ‘unique’ as as the prefix or suffix.
- pt-table-checksum did not detect differences on a system with the
  ROW based replication active.
- pt-onine-schema-change --max-load paused if a status variable was
  passed 0 as the value.
- pt-table-checksum reported a misleading error if a column comment
  contained an apostrophe. For more information, see #1708749.
- In some cases, pt-table-checksum did not report that the same table
  contained different values on the master and slave.
- pt-online-schema-change --alter could fail if field names contained
  upper case characters. For more information, see #1705998.
- In some cases pt-mongodb-query-digest could not connect to a db
  using authentication.
- In some cases, pt-kill could ignore the value of the --busy-time
  parameter. For more information, see #1016272.
- When run with the --skip-check-slave-lag, the pt-table-checksum
  could fail in some cases.

v3.0.4 released 2017-08-02

New Features
- Added collection of information about prepared statements by
  pt-stalk when Performance Schema is enabled. For more information,
- Added the --preserve-triggers option for pt-online-schema-change to
  support AFTER triggers.
- Added --output-format option for pt-mongodb-summary to choose
  between JSON format and the default plain text.
- Added the --output-format=csv parameter for pt-archiver to archive
  rows in CSV format.
- Added the --only-same-schema-fks option for pt-online-schema-change
  to check foreigns keys only on tables with the same schema as the
  original table. This should speed up the tool’s execution, but keep in
  mind that if you have foreign keys referencing tables in other
  schemas, they won’t be detected. For more information, see #1690122.
- Added the --check-unique-key-change option for
  pt-online-schema-change to abort if the specified statement for
--alter is trying to add a unique index. This is supposed to avoid
  adding duplicate keys that might lead to silently losing data.
- Added the --truncate-replicate-table option for pt-table-checksum to
  ensure stale data is removed.

Bug fixes
- Fixed pt-table-checksum to support tables that have columns with
  different collations or charsets. For more information, see
  #1674266.
- Fixed primary key handling by pt-archiver. For more information, see
  #1691630.
- Limited constraint name in the new table when running
  pt-online-schema-change. For more information, see #1491674.
- Fixed the --no-check-binlog-format option for pt-table-checksum to
  work as expected.
- Fixed the use of uninitialized value in printf() for
  pt-online-schema-change. For more information, see #1693614.
- Fixed pt-table-sync to prevent field type point to be taken as
  decimal.
- Reverted PT-116 to remove the --use-insert-ignore option from
  pt-online-schema-change.
- Fixed the --skip-check-slave-lag feature for pt-table-checksum to
  safely check for undefined values.
- Fixed regression in --check-slave-lag option for
  pt-online-schema-change.
- Fixed regression in --skip-check-slave-lag option for
  pt-online-schema-change.
- Fixed syntax error in pt-online-schema-change.