new lock for multiupdate:

- open and create derived tables
- detect which tables should be locked for write
- lock and fill derived tables
some unitialized variables fixed


mysql-test/r/lock_multi.result:
  correct results returned
mysql-test/r/multi_update.result:
  correct results returned
mysql-test/r/view.result:
  correct results returned
mysql-test/t/multi_update.test:
  correct results returned
mysql-test/t/view.test:
  correct results returned
sql/mysql_priv.h:
  derived tables processing splited on table creation and table filling
sql/sql_base.cc:
  derived tables processing splited on table creation and table filling
sql/sql_class.h:
  function to detect when we need fill derived tables
sql/sql_derived.cc:
  derived tables processing splited on table creation and table filling
sql/sql_lex.cc:
  fixed uninitialized value
sql/sql_load.cc:
  fixed uninitialized value
sql/sql_parse.cc:
  initialization muved (will be done for all queries)
sql/sql_prepare.cc:
  preparation of multiupdate changed a bit because new locking procedure
sql/sql_update.cc:
  new lock for multiupdate:
  - open and create derived tables
  - detect which tables should be locked for write
  - lock and fill derived tables
sql/table.h:
  place to store select_result between creation and filling tables

1 files changed, 0 insertions, 4 deletions

diff --git a/mysql-test/t/view.test b/mysql-test/t/view.test
index 17077d1d086..8e38b5616f8 100644
--- a/mysql-test/t/view.test
+++ b/mysql-test/t/view.test
@@ -1300,13 +1300,9 @@ update v1,t1 set v1.s1='c' where t1.s1=v1.s1;
 select * from v1;
 prepare stmt1 from "update v1,t1 set v1.s1=? where t1.s1=v1.s1";
 set @arg='d';
--- QQ This should not generate an error
---error 1036
 execute stmt1 using @arg;
 select * from v1;
 set @arg='e';
--- QQ This should not generate an error
---error 1036
 execute stmt1 using @arg;
 select * from v1;
 deallocate prepare stmt1;