New SET syntax & system variables.

Made a some new buffers thread specific and changeable.
Resize of key_buffer.
AUTO_COMMIT -> AUTOCOMMIT
Fixed mutex bug in DROP DATABASE
Fixed bug when using auto_increment as second part of a key where first part could include NULL.
Split handler->extra() to extra() and extra_opt() to be able to support thread specific buffers.
Don't write message to error log when slave reconnects becasue of timeout.
Fixed possible update problem when using DELETE/UPDATE on small tables
(In some cases we used index even if table scanning would be better)
A lot of minior code cleanups

1 files changed, 16 insertions, 0 deletions

diff --git a/sql/net_pkg.cc b/sql/net_pkg.cc
index f7c28d3d7fe..a8beecd5fb4 100644
--- a/sql/net_pkg.cc
+++ b/sql/net_pkg.cc
@@ -87,6 +87,7 @@ void send_warning(NET *net, uint sql_errno, const char *err)
   DBUG_VOID_RETURN;
 }
 
+
 /*
    Write error package and flush to client
    It's a little too low level, but I don't want to allow another buffer
@@ -369,3 +370,18 @@ net_store_data(String *packet, CONVERT *convert, const char *from)
     return convert->store(packet, from, length);
   return net_store_data(packet,from,length);
 }
+
+/*
+  Function called by my_net_init() to set some check variables
+*/
+
+extern "C" {
+void my_net_local_init(NET *net)
+{
+  net->max_packet=   (uint) global_system_variables.net_buffer_length;
+  net->read_timeout= (uint) global_system_variables.net_read_timeout;
+  net->write_timeout=(uint) global_system_variables.net_write_timeout;
+  net->max_packet_size= max(global_system_variables.net_buffer_length,
+			    global_system_variables.max_allowed_packet);
+}
+}