#28821: Allow QuerySet.bulk_create() on multi-table inheritance when possible
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Reporter: Joey Wilhelm | Owner: (none)
Type: New feature | Status: new
Component: Database layer | Version: master
(models, ORM) |
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Daniel Alley):
This would be an excellent feature and we would really love to be able to
use it.
I would like to be able to manually set the _ptr fields on the child
records in order to affect a bulk_create without the need for automatic
retrieval of IDs.
In certain circumstances (think UUID PKs) it might also be possible, at
least with Postgresql (don't know about the others), to do it the other
way around. Foreign key integrity checks are deferred to the end of the
transaction, so you could save all of the child tables first, and then
save all the parent tables. As long as the entire operation is wrapped in
a single transaction, it wouldn't matter that `_ptr` temporarily held an
invalid FK.
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Ticket URL: <https://code.djangoproject.com/ticket/28821#comment:5>
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