From 1c578a710f14568856dad6a1c0bad1269b4108c4 Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Mon, 30 Jan 2017 12:10:16 -0500
Subject: Copy whereclause / using in ExcludeConstraint

Fixed bug in Postgresql :class:`.ExcludeConstraint` where the
"whereclause" and "using" parameters would not be copied during an
operation like :meth:`.Table.tometadata`.

Change-Id: I2f704981d4d4862f9c82a50272006fab8becebb6
Fixes: #3900
---
 lib/sqlalchemy/dialects/postgresql/ext.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'lib/sqlalchemy/dialects/postgresql/ext.py')

diff --git a/lib/sqlalchemy/dialects/postgresql/ext.py b/lib/sqlalchemy/dialects/postgresql/ext.py
index e3ac79f30..55eded90a 100644
--- a/lib/sqlalchemy/dialects/postgresql/ext.py
+++ b/lib/sqlalchemy/dialects/postgresql/ext.py
@@ -199,7 +199,9 @@ static/sql-createtable.html#SQL-CREATETABLE-EXCLUDE
         c = self.__class__(*elements,
                            name=self.name,
                            deferrable=self.deferrable,
-                           initially=self.initially)
+                           initially=self.initially,
+                           where=self.where,
+                           using=self.using)
         c.dispatch._update(self.dispatch)
         return c
 
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