Added changelog file

diff --git a/doc/build/changelog/unreleased_14/5659.rst b/doc/build/changelog/unreleased_14/5659.rst
new file mode 100644 (file)
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+.. change::
+    :tags: datatypes, feature
+    :tickets: 5659
+
+    Added :meth:`_types.TypeEngine.as_generic` to map dialect-specific types,
+    e.g., ``INTEGER`` with the "best match" generic SQLAlchemy type,
+    e.g., ``Integer``. Pull request courtesy Andrew Hannigan.