From 55e69b274fbdb31f428565a4daff1d4fa510024e Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 25 Nov 2014 07:02:55 +0200
Subject: Don't try to translate duplicate primary key for auto-assigned id

An auto-assigned object id should never cause a duplicate primary key.
---
 odb/mysql/statement.cxx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/odb/mysql/statement.cxx b/odb/mysql/statement.cxx
index 85732de..0badb17 100644
--- a/odb/mysql/statement.cxx
+++ b/odb/mysql/statement.cxx
@@ -623,7 +623,10 @@ namespace odb
 
       if (mysql_stmt_execute (stmt_))
       {
-        if (mysql_stmt_errno (stmt_) == ER_DUP_ENTRY)
+        // An auto-assigned object id should never cause a duplicate
+        // primary key.
+        //
+        if (returning_ == 0 && mysql_stmt_errno (stmt_) == ER_DUP_ENTRY)
           return false;
         else
           translate_error (conn_, stmt_);
-- 
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