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Diffstat (limited to 'docs/ref/models')
| -rw-r--r-- | docs/ref/models/querysets.txt | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/docs/ref/models/querysets.txt b/docs/ref/models/querysets.txt index efd7c549b8..e685472cca 100644 --- a/docs/ref/models/querysets.txt +++ b/docs/ref/models/querysets.txt @@ -1114,6 +1114,17 @@ Aggregation <topics-db-aggregation>`. .. _field-lookups: +``exists()`` +~~~~~~~~~~~~ + +.. versionadded:: 1.2 + +Returns ``True`` if the :class:`QuerySet` contains any results, and ``False`` +if not. This tries to perform the query in the simplest and fastest way +possible, but it *does* execute nearly the same query. This means that calling +:meth:`QuerySet.exists()` is faster that ``bool(some_query_set)``, but not by +a large degree. + Field lookups ------------- |