update_all not working as expected

[MichaelSp]

When I run this code:

Category.where(name: child_name).update_all parent_id: parent.id

the category_hierarchies-table is not populated correctly. Thus queries like category.ancestors.pluck(&:name) are always empty even though category.parent_id is right.

[mceachen]

Not to be flippant, but don't do that. If you run .update_all, you're changing an unknown set of rows with no changed-entry callback. I don't see how that could ever be supported.