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Refs #33996 -- Updated CheckConstraint validation on NULL values on Oracle 23c+.

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Oracle 23c supports comparing boolean expressions.
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Mariusz Felisiak 2024-03-15 12:34:54 +01:00 committed by GitHub
parent cbf1e87398
commit 36a000858b
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2 changed files with 7 additions and 4 deletions
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5
django/db/backends/oracle/features.py
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@ -78,7 +78,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
supports_slicing_ordering_in_compound = True supports_slicing_ordering_in_compound = True
requires_compound_order_by_subquery = True requires_compound_order_by_subquery = True
allows_multiple_constraints_on_same_fields = False allows_multiple_constraints_on_same_fields = False
supports_comparing_boolean_expr = False
supports_json_field_contains = False supports_json_field_contains = False
supports_collation_on_textfield = False supports_collation_on_textfield = False
test_now_utc_template = "CURRENT_TIMESTAMP AT TIME ZONE 'UTC'" test_now_utc_template = "CURRENT_TIMESTAMP AT TIME ZONE 'UTC'"
@ -174,6 +173,10 @@ class DatabaseFeatures(BaseDatabaseFeatures):
def supports_boolean_expr_in_select_clause(self): def supports_boolean_expr_in_select_clause(self):
return self.connection.oracle_version >= (23,) return self.connection.oracle_version >= (23,)
@cached_property
def supports_comparing_boolean_expr(self):
return self.connection.oracle_version >= (23,)
@cached_property @cached_property
def supports_aggregation_over_interval_types(self): def supports_aggregation_over_interval_types(self):
return self.connection.oracle_version >= (23,) return self.connection.oracle_version >= (23,)

6
docs/ref/models/constraints.txt
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@ -131,10 +131,10 @@ ensures the age field is never less than 18.
name="age_gte_18_and_others", name="age_gte_18_and_others",
) )
.. admonition:: Oracle .. admonition:: Oracle < 23c
Checks with nullable fields on Oracle must include a condition allowing for Checks with nullable fields on Oracle < 23c must include a condition
``NULL`` values in order for :meth:`validate() <BaseConstraint.validate>` allowing for ``NULL`` values in order for :meth:`~BaseConstraint.validate`
to behave the same as check constraints validation. For example, if ``age`` to behave the same as check constraints validation. For example, if ``age``
is a nullable field:: is a nullable field::