Code review comment for lp:~mwhudson/launchpad/recipe-db-schema

I read through the "First cut at recipe db-schema patch" email thread again..

Just in case you plan to keep the revision data for manifests in the SourcePackageRecipeData.recipe text column: how do we distinguish between recipe and manifest data w/o looking at the .recipe content or checking that it was referenced via SourcePackageBuild.manifest?

Or is there no need for such a distinction?