From affbb9c8cdc5dee6cbfd6072318006666384723b Mon Sep 17 00:00:00 2001
From: Adam Poit <adam.poit@logos.com>
Date: Thu, 25 May 2017 16:18:48 -0700
Subject: [PATCH] Escape single quote and backslash when writing GUIDs as byte
 arrays.

---
 src/MySqlConnector/MySqlClient/MySqlParameter.cs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/MySqlConnector/MySqlClient/MySqlParameter.cs b/src/MySqlConnector/MySqlClient/MySqlParameter.cs
index 0cec377e4..3a4eddb35 100644
--- a/src/MySqlConnector/MySqlClient/MySqlParameter.cs
+++ b/src/MySqlConnector/MySqlClient/MySqlParameter.cs
@@ -161,7 +161,12 @@ internal void AppendSqlString(BinaryWriter writer, StatementPreparerOptions opti
 				if ((options & StatementPreparerOptions.OldGuids) != 0)
 				{
 					writer.WriteUtf8("_binary'");
-					writer.Write(guidValue.ToByteArray());
+					foreach (var by in guidValue.ToByteArray())
+					{
+						if (by == 0x27 || by == 0x5C)
+							writer.Write((byte) 0x5C);
+						writer.Write(by);
+					}
 					writer.Write((byte) '\'');
 				}
 				else