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ORA-32794 in Oracle 12c using identity columns #1049

ringerl opened this issue Jul 8, 2015 · 5 comments

ORA-32794 in Oracle 12c using identity columns #1049

ringerl opened this issue Jul 8, 2015 · 5 comments


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ringerl commented Jul 8, 2015

"flyway clean" can not clean a schema with identity columns, because the auto generated sequences can not be deleted. These must be purged from the recycle bin:

@axelfontaine axelfontaine added this to the Flyway 4.0 milestone Jul 9, 2015
@ringerl ringerl changed the title ORA-32794 in Oracle 12c using idenity columns ORA-32794 in Oracle 12c using identity columns Jul 12, 2015
axelfontaine pushed a commit to flyway/ that referenced this issue Oct 28, 2015
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This should be fixed now, unfortunately I don't have access to an Oracle 12 installation at this time. Could you build the latest sources of Flyway-core (it's easy with -DskipTests) and confirm that it is indeed working for you?


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0x6e6562 commented Dec 3, 2015

I can confirm that this works with a installation. I generated the command line utility by building b18394c using the following profile:

$ mvn install -P-InstallableDBTest -P-CommercialDBTest -DskipTests=true -P-CommandlinePlatformAssemblies

I also commented out the modules from the parent POM that caused the build to fail that were not required:


Is there any chance that this patch might get back ported to the 3.2.x series?

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@axelfontaine Any chance you could release - we really need this one. Additionally do you think it's a good idea to push out snapshots for the .travis.yml - so fresh builds will be available? In the mean time I can push one to our own private repo.

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Was this ever put into a release? I'm using version 5.1.4, but I'm still seeing this same error when I run clean.
" ORA-32794: cannot drop a system-generated sequence"

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@gooeywizard Yes and it works flawlessly with the latest code. If you are still seeing an error, please try the latest code, including 6.0.0-beta and if it persists, then open a new issue with clear steps how to reproduce.

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