From 817a05a61cf93a310ae960ff1ff068510b77293b Mon Sep 17 00:00:00 2001
From: unknown <gkodinov/kgeorge@magare.gmz>
Date: Mon, 30 Jul 2007 18:27:36 +0300
Subject: (pushing for Andrei) Bug #27417 thd->no_trans_update.stmt lost value
 inside of SF-exec-stack

Once had been set the flag might later got reset inside of a stored routine
execution stack.
The reason was in that there was no check if a new statement started at time
of resetting.
The artifact affects most of binlogable DML queries. Notice, that multi-update
is wrapped up within
  bug@27716 fix, multi-delete bug@29136.

Fixed with saving parent's statement flag of whether the statement modified
non-transactional table, and unioning (merging) the value with that was gained
in mysql_execute_command.

Resettling thd->no_trans_update members into thd->transaction.`member`;
Asserting code;
Effectively the following properties are held.

1. At the end of a substatement thd->transaction.stmt.modified_non_trans_table
   reflects the fact if such a table got modified by the substatement.
   That also respects THD::really_abort_on_warnin() requirements.
2. Eventually thd->transaction.stmt.modified_non_trans_table will be computed as
   the union of the values of all invoked sub-statements.
   That fixes this bug#27417;

Computing of thd->transaction.all.modified_non_trans_table is refined to base to
the stmt's value for all the case including insert .. select statement which
before the patch had an extra issue bug@28960.
Minor issues are covered with mysql_load, mysql_delete, and binloggin of insert in
to temp_table select.

The supplied test verifies limitely, mostly asserts. The ultimate testing is defered
for bug@13270, bug@23333.


mysql-test/r/mix_innodb_myisam_binlog.result:
  results changed
mysql-test/t/mix_innodb_myisam_binlog.test:
  regression test incl the related bug#28960.
sql/ha_ndbcluster.cc:
  thd->transaction.{all,stmt}.modified_non_trans_table
  instead of
  thd->no_trans_update.{all,stmt}
sql/handler.cc:
  thd->transaction.{all,stmt}.modified_non_trans_table
  instead of
  thd->no_trans_update.{all,stmt}
sql/handler.h:
  new member added
sql/log.cc:
  thd->transaction.{all,stmt}.modified_non_trans_table
  instead of
  thd->no_trans_update.{all,stmt}
sql/set_var.cc:
  thd->transaction.{all,stmt}.modified_non_trans_table
  instead of
  thd->no_trans_update.{all,stmt}
sql/sp_head.cc:
  thd->transaction.{all,stmt}.modified_non_trans_table
  instead of
  thd->no_trans_update.{all,stmt}

  and saving and merging stmt's flag at the end of a substatement.
sql/sql_class.cc:
  thd->transaction.{all,stmt}.modified_non_trans_table
  instead of
  thd->no_trans_update.{all,stmt}
sql/sql_class.h:
  thd->transaction.{all,stmt}.modified_non_trans_table
  instead of
  thd->no_trans_update.{all,stmt}
sql/sql_delete.cc:
  correcting basic delete incl truncate branch and multi-delete queries to set
  stmt.modified_non_trans_table;
  optimization to set the flag at the end of per-row loop;
  multi-delete still has an extra issue similar to bug#27716 of multi-update
  - to be address with bug_29136 fix.
sql/sql_insert.cc:
  thd->transaction.{all,stmt}.modified_non_trans_table
  instead of
  thd->no_trans_update.{all,stmt}
sql/sql_load.cc:
  eliminating a separate issue where the stmt flag was saved and re-stored after
  write_record that actually could change it and the change would be lost but
  should remain permanent;
  thd->transaction.{all,stmt}.modified_non_trans_table
  instead of
  thd->no_trans_update.{all,stmt}
sql/sql_parse.cc:
  initialization to transaction.stmt.modified_non_trans_table at the common part
  of all types of statements processing - mysql_execute_command().
sql/sql_table.cc:
  moving the reset up to the mysql_execute_command() caller
sql/sql_update.cc:
  correcting update query case (multi-update part of the issues covered by other
  bug#27716 fix)
  thd->transaction.{all,stmt}.modified_non_trans_table
  instead of
  thd->no_trans_update.{all,stmt}
---
 sql/sql_class.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

(limited to 'sql/sql_class.h')

diff --git a/sql/sql_class.h b/sql/sql_class.h
index 058f130d4e7..1c84fd32965 100644
--- a/sql/sql_class.h
+++ b/sql/sql_class.h
@@ -1460,10 +1460,6 @@ public:
   bool	     charset_is_system_charset, charset_is_collation_connection;
   bool       charset_is_character_set_filesystem;
   bool       enable_slow_log;   /* enable slow log for current statement */
-  struct {
-    bool all:1;
-    bool stmt:1;
-  } no_trans_update;
   bool	     abort_on_warning;
   bool 	     got_warning;       /* Set on call to push_warning() */
   bool	     no_warnings_for_error; /* no warnings on call to my_error() */
@@ -1714,7 +1710,7 @@ public:
   inline bool really_abort_on_warning()
   {
     return (abort_on_warning &&
-            (!no_trans_update.stmt ||
+            (!transaction.stmt.modified_non_trans_table ||
              (variables.sql_mode & MODE_STRICT_ALL_TABLES)));
   }
   void set_status_var_init();
-- 
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