[IMP] document subset/superset operations
This commit is contained in:
parent
9874892b97
commit
9c78ba1f75
|
@ -91,6 +91,10 @@ preserve order.
|
||||||
* ``record in set`` returns whether ``record`` (which must be a 1-element
|
* ``record in set`` returns whether ``record`` (which must be a 1-element
|
||||||
recordset) is present in ``set``. ``record not in set`` is the inverse
|
recordset) is present in ``set``. ``record not in set`` is the inverse
|
||||||
operation
|
operation
|
||||||
|
* ``set1 <= set2`` and ``set1 < set2`` return whether ``set1`` is a subset
|
||||||
|
of ``set2`` (resp. strict)
|
||||||
|
* ``set1 >= set2`` and ``set1 > set2`` return whether ``set1`` is a superset
|
||||||
|
of ``set2`` (resp. strict)
|
||||||
* ``set1 | set2`` returns the union of the two recordsets, a new recordset
|
* ``set1 | set2`` returns the union of the two recordsets, a new recordset
|
||||||
containing all records present in either source
|
containing all records present in either source
|
||||||
* ``set1 & set2`` returns the intersection of two recordsets, a new recordset
|
* ``set1 & set2`` returns the intersection of two recordsets, a new recordset
|
||||||
|
|
Loading…
Reference in New Issue