#31276: Add 'flush' option to only clear non-empty tables
-------------------------------------+-------------------------------------
Reporter: Adam (Chainz) | Owner: jonatron
Johnson |
Type: | Status: assigned
Cleanup/optimization |
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 jonatron):
The sqlite problem can be fixed using the same chunking as is in
_quote_params_for_last_executed_query.
I can't explain sqlite's performance.
sqlite
1000 tables with patch
Ran 5 tests in 0.237s
Ran 5 tests in 0.345s
Ran 5 tests in 0.288s
Ran 5 tests in 0.257s
Ran 5 tests in 0.240s
1000 tables without patch
Ran 5 tests in 55.617s
Ran 5 tests in 57.577s
Ran 5 tests in 55.242s
900 tables without patch
Ran 5 tests in 45.796s
800 tables without patch
Ran 5 tests in 35.795s
600 tables without patch
Ran 5 tests in 20.521s
550 tables without patch
Ran 5 tests in 19.025s
500 tables without patch
Ran 5 tests in 3.049s
400 tables without patch
Ran 5 tests in 2.068s
200 tables without patch
Ran 5 tests in 0.612s
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Ticket URL: <https://code.djangoproject.com/ticket/31276#comment:7>
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