From 2cf83604c6ca0df3efa7033c865cbf2beb31cf71 Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Fri, 25 Jan 2013 12:57:59 -0500
Subject: #2629

insert().returning() raises an informative CompileError if attempted
to compile on a dialect that doesn't support RETURNING.
---
 lib/sqlalchemy/sql/compiler.py | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'lib/sqlalchemy/sql/compiler.py')

diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py
index 152e68e34..59e46de12 100644
--- a/lib/sqlalchemy/sql/compiler.py
+++ b/lib/sqlalchemy/sql/compiler.py
@@ -1248,6 +1248,11 @@ class SQLCompiler(engine.Compiled):
         else:
             return ""
 
+    def returning_clause(self, stmt, returning_cols):
+        raise exc.CompileError(
+                    "RETURNING is not supported by this "
+                    "dialect's statement compiler.")
+
     def limit_clause(self, select):
         text = ""
         if select._limit is not None:
-- 
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