How can I query the Bamboo Postgres database for releases which have an action of Rollback?

[dstewart@greenmountaintechnology.com]

I can see in the Bamboo dashboard of release history some releases which have an action of Rollback.  I would like to be able to exclude those from my query of successful production releases.  I can not figure out in which table/column that action is stored.  Thanks in advance for any help.