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Loic Bistuer f51c1f5900 Fixed #17001 -- Custom querysets for prefetch_related.

This patch introduces the Prefetch object which allows customizing prefetch
operations.

This enables things like filtering prefetched relations, calling select_related
from a prefetched relation, or prefetching the same relation multiple times
with different querysets.

When a Prefetch instance specifies a to_attr argument, the result is stored
in a list rather than a QuerySet. This has the fortunate consequence of being
significantly faster. The preformance improvement is due to the fact that we
save the costly creation of a QuerySet instance.

Thanks @akaariai for the original patch and @bmispelon and @timgraham
for the reviews.

2013-11-07 14:49:49 +02:00

fields.txt

Fixed typos in documentation.

2013-11-06 10:47:07 +01:00

index.txt

Consolidated documentation for F() and Q()

2013-09-06 12:57:25 -05:00

instances.txt

Consolidated documentation for F() and Q()

2013-09-06 12:57:25 -05:00

options.txt

Fixed #13245 : Explained Oracle's behavior w.r.t db_table