From 49d80269878c9d793df752479c876c3bbc4f8020 Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Sat, 7 Dec 2013 18:38:15 -0500
Subject: - The :func:`.engine_from_config` function has been improved so that
 we will be able to parse dialect-specific arguments from string configuration
 dictionaries.  Dialect classes can now provide their own list of parameter
 types and string-conversion routines. The feature is not yet used by the
 built-in dialects, however. [ticket:2875]

---
 lib/sqlalchemy/engine/default.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'lib/sqlalchemy/engine/default.py')

diff --git a/lib/sqlalchemy/engine/default.py b/lib/sqlalchemy/engine/default.py
index 8fb7c3bb8..dec6f2cdf 100644
--- a/lib/sqlalchemy/engine/default.py
+++ b/lib/sqlalchemy/engine/default.py
@@ -59,6 +59,18 @@ class DefaultDialect(interfaces.Dialect):
 
     supports_simple_order_by_label = True
 
+    engine_config_types = util.immutabledict([
+        ('convert_unicode', util.bool_or_str('force')),
+        ('pool_timeout', int),
+        ('echo', util.bool_or_str('debug')),
+        ('echo_pool', util.bool_or_str('debug')),
+        ('pool_recycle', int),
+        ('pool_size', int),
+        ('max_overflow', int),
+        ('pool_threadlocal', bool),
+        ('use_native_unicode', bool),
+    ])
+
     # if the NUMERIC type
     # returns decimal.Decimal.
     # *not* the FLOAT type however.
-- 
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