Mathieu Gagné 692f289a32 Detect skip version upgrades from version earlier than Pike ...

When performing a skip version upgrade from a release earlier than Pike,
Ironic will crash when check_versions cannot find the 'version' columns
in the database.

This change adds a safety check which detects old database
version missing the 'version' columns. Instead of crashing, it will
inform the user that skip version upgrades are not supported and
that database migrations need to be run for each skipped versions instead.

Story: 2002558
Task: 22122
Change-Id: Ifa100c6fd168fc59b56bba0c41836958b10f2d47

2018-07-06 12:46:14 -04:00

612 B

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