[schema2sql] insert some constraints into the backend
BoundaryConstraint, IntervalBoundConstraint and
StaticVocabularyConstraint can be implemented in SQL with CHECK
constraints.
Next steps, not part of this changeset:
- migrations
- removing no longer necessary pre-insertion work on the python side
- translating backend exception due to constraint violation into
ValidationError
Note: this means that these constraints can no longer be ignored by
disabling integrity hooks.
Related to #5154406
addressbook
basket
blog
book
calendar
comment
company
email
file
folder
i18ncontent
keyword
link
mailinglist
person
tag
timeseries
vcsfile