Apply quoting to SQL Server _switch_db

Added identifier quoting to the schema name applied to the "use" statement
which is invoked when a SQL Server multipart schema name is used within  a
:class:`.Table` that is being reflected, as well as for :class:`.Inspector`
methods such as :meth:`.Inspector.get_table_names`; this accommodates for
special characters or spaces in the database name.  Additionally, the "use"
statement is not emitted if the current database matches the target owner
database name being passed.

Fixes: #4883
Change-Id: I84419730e94aac3a88d331ad8c24d10aabbc34af

1 files changed, 0 insertions, 16 deletions

diff --git a/test/dialect/mssql/test_compiler.py b/test/dialect/mssql/test_compiler.py
index 4f656a36c..00a8a08fc 100644
--- a/test/dialect/mssql/test_compiler.py
+++ b/test/dialect/mssql/test_compiler.py
@@ -20,7 +20,6 @@ from sqlalchemy import union
 from sqlalchemy import UniqueConstraint
 from sqlalchemy import update
 from sqlalchemy.dialects import mssql
-from sqlalchemy.dialects.mssql import base
 from sqlalchemy.dialects.mssql import mxodbc
 from sqlalchemy.dialects.mssql.base import try_cast
 from sqlalchemy.sql import column
@@ -480,21 +479,6 @@ class CompileTest(fixtures.TestBase, AssertsCompiledSQL):
             select([tbl]), "SELECT [Foo].dbo.test.id FROM [Foo].dbo.test"
         )
 
-    def test_owner_database_pairs(self):
-        dialect = mssql.dialect()
-
-        for identifier, expected_schema, expected_owner in [
-            ("foo", None, "foo"),
-            ("foo.bar", "foo", "bar"),
-            ("Foo.Bar", "Foo", "Bar"),
-            ("[Foo.Bar]", None, "Foo.Bar"),
-            ("[Foo.Bar].[bat]", "Foo.Bar", "bat"),
-        ]:
-            schema, owner = base._owner_plus_db(dialect, identifier)
-
-            eq_(owner, expected_owner)
-            eq_(schema, expected_schema)
-
     def test_delete_schema(self):
         metadata = MetaData()
         tbl = Table(