#29928: TestCase doesn't check for foreign key constraints when using sqlite
-------------------------------------+-------------------------------------
     Reporter:  Michel Samia         |                    Owner:  nobody
         Type:  Bug                  |                   Status:  new
    Component:  Testing framework    |                  Version:  2.1
     Severity:  Normal               |               Resolution:
     Keywords:  sqlite db foreign    |             Triage Stage:  Accepted
  key TestCase                       |
    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 Michel Samia):

 regarding step 3: actually sqlite itself probably supports getting number
 of unsatisfied constraints for given connection. It should be this call:
 https://www.sqlite.org/c3ref/db_status.html with this parameter:
 SQLITE_DBSTATUS_DEFERRED_FKS
 (https://www.sqlite.org/c3ref/c_dbstatus_options.html). I checked briefly
 if this function is exposed to pysqlite but didn't find it there. I'll ask
 in the github issue of pysqlite. This would allow us to query sqlite for
 fk violations and only if it says that number of fk violations > 0, we
 would run our full constraint checking.

-- 
Ticket URL: <https://code.djangoproject.com/ticket/29928#comment:8>
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