Simon Charette 9f3cce172f Refs #26430 -- Re-introduced empty aggregation optimization. ... The introduction of the Expression.empty_aggregate_value interface allows the compilation stage to enable the EmptyResultSet optimization if all the aggregates expressions implement it. This also removes unnecessary RegrCount/Count.convert_value() methods. Disabling the empty result set aggregation optimization when it wasn't appropriate prevented None returned for a Count aggregation value. Thanks Nick Pope for the review.		2021-07-02 07:25:42 +02:00
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class.txt
conditional-expressions.txt
constraints.txt
database-functions.txt
expressions.txt	Refs #26430 -- Re-introduced empty aggregation optimization.	2021-07-02 07:25:42 +02:00
fields.txt
index.txt
indexes.txt
instances.txt	Fixed #32755 -- Corrected Model.get_absolute_url() example in docs.	2021-05-18 11:30:38 +02:00
lookups.txt
meta.txt
options.txt
querysets.txt	Fixed #32381 -- Made QuerySet.bulk_update() return the number of objects updated.	2021-06-29 06:58:46 +02:00
relations.txt