Merge paul@bk-internal.mysql.com:/home/bk/mysql-4.1

into ice.snake.net:/Volumes/ice2/MySQL/bk/mysql-4.1

include/mysql.h

@@ -710,6 +710,7 @@ void STDCALL mysql_stmt_data_seek(MYSQL_STMT *stmt, my_ulonglong offset);
 my_ulonglong STDCALL mysql_stmt_num_rows(MYSQL_STMT *stmt);
 my_ulonglong STDCALL mysql_stmt_affected_rows(MYSQL_STMT *stmt);
 my_ulonglong STDCALL mysql_stmt_insert_id(MYSQL_STMT *stmt);
+unsigned int STDCALL mysql_stmt_field_count(MYSQL_STMT *stmt);
 
 my_bool STDCALL mysql_commit(MYSQL * mysql);
 my_bool STDCALL mysql_rollback(MYSQL * mysql);

libmysql/libmysql.def

@@ -131,3 +131,4 @@ EXPORTS
 	mysql_stmt_insert_id
         mysql_stmt_attr_get
         mysql_stmt_attr_set
+	mysql_stmt_field_count

sql/sql_prepare.cc

@@ -210,7 +210,13 @@ static ulong get_param_length(uchar **packet, ulong len)
   if (len < 5)
     return 0;
   (*packet)+=9; // Must be 254 when here 
-  /* TODO: why uint4korr here? (should be uint8korr) */
+  /*
+    In our client-server protocol all numbers bigger than 2^24
+    stored as 8 bytes with uint8korr. Here we always know that
+    parameter length is less than 2^4 so don't look at the second
+    4 bytes. But still we need to obey the protocol hence 9 in the
+    assignment above.
+  */
   return (ulong) uint4korr(pos+1);
 }
 #else