removed old way to prevent using stack tables for caching Items in PS

fixed error code in union test


mysql-test/t/union.test:
  right code worr 4.1 error
sql/log_event.cc:
  assign non-cachable for Item status for all stack tables for safety
sql/repl_failsafe.cc:
  assign non-cachable for Item status for all stack tables for safety
sql/slave.cc:
  assign non-cachable for Item status for all stack tables for safety
sql/sql_acl.cc:
  assign non-cachable for Item status for all stack tables for safety
sql/sql_base.cc:
  assign non-cachable for Item status for all stack tables for safety
  non-cachable status processing
sql/sql_cache.cc:
  assign non-cachable for Item status for all stack tables for safety
sql/sql_class.cc:
  removed ald way to prevent using stack tables for caching Items in PS
sql/sql_class.h:
  removed old way to prevent using stack tables for caching Items in PS
sql/sql_help.cc:
  assign non-cachable for Item status for all stack tables for safety
sql/sql_insert.cc:
  assign non-cachable for Item status for all stack tables for safety
  removed old way to prevent using stack tables for caching Items in PS
sql/table.h:
  non-cachable for Item status for tables

1 files changed, 1 insertions, 0 deletions

diff --git a/sql/repl_failsafe.cc b/sql/repl_failsafe.cc
index 284444090bb..f8b0cf31621 100644
--- a/sql/repl_failsafe.cc
+++ b/sql/repl_failsafe.cc
@@ -736,6 +736,7 @@ static int fetch_db_tables(THD *thd, MYSQL *mysql, const char *db,
       table.db= (char*) db;
       table.real_name= (char*) table_name;
       table.updating= 1;
+      table.non_cachable_table= 1;	// just safety for table on stack
       if (!tables_ok(thd, &table))
 	continue;
     }