Hello, I'm struggling to write upgrade and rollback SQL for a CHAR(16) FOR BIT DATA column. It's currently 16-bytes long, but I'd like to migrate it to a BLOB since I'll need to put more data in it soon.
I'm using liquibase for the migration. Upgrading is fine, I add a new column, and do "update <table> set newColumn = CAST(oldColumn AS BLOB)". Rolling back is giving me problems though. I'm trying to do "update <table> set oldColumn = CAST(newColumn AS CHAR FOR BIT DATA)", but I keep getting the error in the subject. The documentation I found at http://db.apache.org/derby/docs/10.10/ref/rrefsqlj33562.html indicates that casting from CHAR FOR BIT DATA to BLOB should be possible. I'm using Derby 10.10.1.1, so I believe those are the correct docs. Any idea what could be wrong? For what it's worth, this test is taking place on empty tables. Cheers, Derek
