1 files changed, 11 insertions, 0 deletions
diff --git a/sql/protocol.h b/sql/protocol.h
index 731caeb1a4c..da49cf769ae 100644
--- a/sql/protocol.h
+++ b/sql/protocol.h
@@ -98,6 +98,15 @@ public:
 #else
   void remove_last_row() {}
 #endif
+  enum enum_protocol_type
+  {
+    PROTOCOL_TEXT= 0, PROTOCOL_BINARY= 1
+    /*
+      before adding here or change the values, consider that it is cast to a
+      bit in sql_cache.cc.
+    */
+  };
+  virtual enum enum_protocol_type type()= 0;
 };
 
 
@@ -127,6 +136,7 @@ public:
 #ifdef EMBEDDED_LIBRARY
   void remove_last_row();
 #endif
+  virtual enum enum_protocol_type type() { return PROTOCOL_TEXT; };
 };
 
 
@@ -158,6 +168,7 @@ public:
   virtual bool store(float nr, uint32 decimals, String *buffer);
   virtual bool store(double from, uint32 decimals, String *buffer);
   virtual bool store(Field *field);
+  virtual enum enum_protocol_type type() { return PROTOCOL_BINARY; };
 };
 
 void send_warning(THD *thd, uint sql_errno, const char *err=0);