bpo-39652: Truncate the column name after '[' only if PARSE_COLNAMES is set. (GH-18942)

diff --git a/Lib/sqlite3/test/regression.py b/Lib/sqlite3/test/regression.py
index c714116..cbd46d4 100644
--- a/Lib/sqlite3/test/regression.py
+++ b/Lib/sqlite3/test/regression.py
@@ -68,7 +68,7 @@
     def CheckColumnNameWithSpaces(self):
         cur = self.con.cursor()
         cur.execute('select 1 as "foo bar [datetime]"')
-        self.assertEqual(cur.description[0][0], "foo bar")
+        self.assertEqual(cur.description[0][0], "foo bar [datetime]")
 
         cur.execute('select 1 as "foo baz"')
         self.assertEqual(cur.description[0][0], "foo baz")