add changelog for supports_schema

Change-Id: I9fb9947c45e34369ebb8f55c3c52a2d6f4e879cf

diff --git a/doc/build/changelog/unreleased_14/schema_flag.rst b/doc/build/changelog/unreleased_14/schema_flag.rst
new file mode 100644 (file)
index 0000000..8cf3b40
--- /dev/null
+++ b/doc/build/changelog/unreleased_14/schema_flag.rst
@@ -0,0 +1,6 @@
+.. change::
+    :tags: change, tests
+
+    Added a new flag to :class:`.DefaultDialect` called ``supports_schema``;
+    third party dialects may set this flag to ``True`` to enable SQLAlchemy's
+    schema-level tests when running the test suite for a third party dialect.