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dfe3810f64
Currently, when we load a frozen schema into the registry, we lose the base info if the schema was of a view. Because of that, in various places we need to set the base info again, and in some codepaths we may miss it completely, which may make us unable to process some requests (for example, when executing reverse queries on views). Even after setting the base info, we may still lose it if the schema entry gets deactivated. To fix this, this patch adds the base schema to the registry, alongside the view schema. With the base schema, we can now set the base info when returning the schema from the registry. As a result, we can now assume that all view schemas returned by the registry have base_info set. To store the base schema, the loader methods now have to return the base schema alongside the view schema. At the same time, when loading into the registry, we need to check whether we're loading a view schema, and if so, we need to also provide the base schema. When inserting a regular table schema, the base schema should be a disengaged optional.