add exclusion for unusual chars in column names

Added new exclusion rule for third party dialects called
``unusual_column_name_characters``, which can be "closed" for third party
dialects that don't support column names with unusual characters such as
dots, slashes, or percent signs in them, even if the name is properly
quoted.

Fixes: #9002
Change-Id: I44b765df4c73ce5ec1907d031fd9c89761fd99d1
References: #8993
(cherry picked from commit 946058ec6070ab4db9fdfab612ec4543fea9cd1c)

diff --git a/doc/build/changelog/unreleased_14/9002.rst b/doc/build/changelog/unreleased_14/9002.rst
new file mode 100644 (file)
index 0000000..c2d3f01
--- /dev/null
+++ b/doc/build/changelog/unreleased_14/9002.rst
@@ -0,0 +1,10 @@
+.. change::
+    :tags: bug, tests
+    :tickets: 9002
+
+    Added new exclusion rule for third party dialects called
+    ``unusual_column_name_characters``, which can be "closed" for third party
+    dialects that don't support column names with unusual characters such as
+    dots, slashes, or percent signs in them, even if the name is properly
+    quoted.
+

diff --git a/lib/sqlalchemy/testing/requirements.py b/lib/sqlalchemy/testing/requirements.py
index 8cd4c64f27bd2fdd7a430adb29bf9769bf1f272d..e225512889f8bc9d9ebf88ae184348c42e45af95 100644 (file)
--- a/lib/sqlalchemy/testing/requirements.py
+++ b/lib/sqlalchemy/testing/requirements.py
@@ -152,6 +152,17 @@ class SuiteRequirements(Requirements):
 
         return exclusions.open()
 
+    @property
+    def unusual_column_name_characters(self):
+        """target database allows column names that have unusual characters
+        in them, such as dots, spaces, slashes, or percent signs.
+
+        The column names are as always in such a case quoted, however the
+        DB still needs to support those characters in the name somehow.
+
+        """
+        return exclusions.open()
+
     @property
     def subqueries(self):
         """Target database must support subqueries."""

diff --git a/lib/sqlalchemy/testing/suite/test_dialect.py b/lib/sqlalchemy/testing/suite/test_dialect.py
index 99947bbe4f536c201e3892635917c10b265a02d5..c1c0856c32543e2a77efa4b79403a03db8354165 100644 (file)
--- a/lib/sqlalchemy/testing/suite/test_dialect.py
+++ b/lib/sqlalchemy/testing/suite/test_dialect.py
@@ -343,6 +343,7 @@ class DifficultParametersTest(fixtures.TestBase):
     )
 
     @tough_parameters
+    @config.requirements.unusual_column_name_characters
     def test_round_trip_same_named_column(
         self, paramname, connection, metadata
     ):