fix typo on double doc

Change-Id: Ia8cffddae5c5c14954d7fa6b2e11c2b78c6e5f59

diff --git a/lib/sqlalchemy/dialects/oracle/types.py b/lib/sqlalchemy/dialects/oracle/types.py
index 539b2107076f2931bc6eafb18094ed8ceba6e69c..9318b45619a287ba2b8b68d8cbfd8ab099355906 100644 (file)
--- a/lib/sqlalchemy/dialects/oracle/types.py
+++ b/lib/sqlalchemy/dialects/oracle/types.py
@@ -114,7 +114,7 @@ class BINARY_DOUBLE(sqltypes.Double):
     """Implement the Oracle ``BINARY_DOUBLE`` datatype.
 
     This datatype differs from the Oracle ``DOUBLE`` datatype in that it
-    delivers a true 4-byte FP value.   The datatype may be combined with a
+    delivers a true 8-byte FP value.   The datatype may be combined with a
     generic :class:`.Double` datatype using :meth:`.TypeEngine.with_variant`.
 
     .. seealso::