patito.Relation.count

Relation.count()

Return the number of rows in the given relation.

Return type

int

Returns

Number of rows in the relation as an integer.

Examples

>>> import patito as pt
>>> relation = pt.Relation("select 1 as a")
>>> relation.count()
1
>>> (relation + relation).count()
2

The Relation.__len__() method invokes Relation.count() under the hood, and is equivalent:

>>> len(relation)
1
>>> len(relation + relation)
2