A new topic, '"1.x to 2.0 Upgrade Guide": mention columns added to
DATABASECHANGELOG', has been made on a board you are watching.
You can see it at
http://liquibase.org/forum/index.php?topic=859.new#new
The text of the topic is shown below:
I just made the following addition to http://liquibase.org/v2_upgrade:
Liquibase 2.0 will silently add three columns to your DATABASECHANGELOG table:
Tag, OrderExecuted, and ExecType. Older versions of Liquibase will be
incompatible with this table because they will not supply values for these
columns, two of which are not nullable.
This describes what I think is happening but some Liquibase developer should
review this and correct any errors.
We discovered this because we have different development teams sharing the same
database schema, i.e. sharing the same DATABASECHANGELOG table. One group
upgraded to the latest version of Liquibase (since they use Maven they may not
even have been aware of which specific version they were using). This meant
that other groups then ran into trouble. Interestingly the liquibase scripts
still worked, but could not log their changes in DATABASECHANGELOG. And since
the changesets were not rolled back, things from that point on were out of
sync. I was surprised it was so difficult to track down the cause of this
problem.
Updating DATABASECHANGELOG should be part of the overall transaction, so that
new changes are rolled back if they can't be logged in DATABASECHANGELOG.
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Regards,
The Liquibase Community Forum Team.
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