A fix and a test case for Bug#17843 "Certain stored procedures fail to

run at startup"

The server returned an error when trying to execute init-file with a 
stored procedure that could return multiple result sets to the client. 
A stored procedure can return multiple result sets if it contains 
PREPARE, SELECT, SHOW and similar statements.
   
The fix is to set client_capabilites|=CLIENT_MULTI_RESULTS in
sql_parse.cc:handle_bootstrap(). There is no "client" really, so 
nothing is ever sent. This makes init-file feature behave consistently: 
the prepared statements that can be called directly in the init-file 
can be used in a stored procedure too.

Re-committed the patch originally submitted by Per-Erik after review.


mysql-test/Makefile.am:
  Fix re-make without make clean.
mysql-test/r/init_connect.result:
  Updated results (a test case for Bug#17843)
mysql-test/r/init_file.result:
  Updated results (a test case for Bug#17843)
mysql-test/std_data/init_file.dat:
  Add test coverage for new features added in 5.0. Note, that what can 
  be done in init_file is very limited as it does not support any other
  delimiter except ';' -- only "one liners" and no multiple statement 
  procedures. Also, this is executed with a dummy user "boot@", which 
  calls for the use of DEFINER clause.
mysql-test/t/init_connect.test:
  Add test coverage for new features added in 5.0.
mysql-test/t/init_file.test:
  Add test coverage for new features added in 5.0 --
  stored routines, views, triggers. The actual tests are in 
  std_data/init_file.dat, here we just check the results and clean up.
sql/sql_class.cc:
  Initialize Security_context::priv_host to an empty string:
  when executing an init-file, sql_parse.cc:get_default_definer()
  will use this for the value of the definer if it's not set in the query.
sql/sql_parse.cc:
  Set CLIENT_MULTI_RESULTS in handle_bootstrap(), to make prepared
  statements work in stored procedures called from init-file.

1 files changed, 114 insertions, 0 deletions

diff --git a/mysql-test/r/init_connect.result b/mysql-test/r/init_connect.result
index eeae422edc4..f90ee5913a1 100644
--- a/mysql-test/r/init_connect.result
+++ b/mysql-test/r/init_connect.result
@@ -22,3 +22,117 @@ set GLOBAL init_connect="adsfsdfsdfs";
 select @a;
 Got one of the listed errors
 drop table t1;
+End of 4.1 tests
+create table t1 (x int);
+insert into t1 values (3), (5), (7);
+create table t2 (y int);
+create user mysqltest1@localhost;
+grant all privileges on test.* to mysqltest1@localhost;
+set global init_connect="create procedure p1() select * from t1";
+call p1();
+x
+3
+5
+7
+drop procedure p1;
+set global init_connect="create procedure p1(x int)\
+begin\
+  select count(*) from t1;\
+  select * from t1;\
+  set @x = x;
+end";
+call p1(42);
+count(*)
+3
+x
+3
+5
+7
+select @x;
+@x
+42
+set global init_connect="call p1(4711)";
+select @x;
+@x
+4711
+set global init_connect="drop procedure if exists p1";
+call p1();
+ERROR 42000: PROCEDURE test.p1 does not exist
+create procedure p1(out sum int)
+begin
+declare n int default 0;
+declare c cursor for select * from t1;
+declare exit handler for not found
+begin
+close c;
+set sum = n;
+end;
+open c;
+loop
+begin
+declare x int;
+fetch c into x;
+if x > 3 then
+set n = n + x;
+end if;
+end;
+end loop;
+end|
+set global init_connect="call p1(@sum)";
+select @sum;
+@sum
+12
+drop procedure p1;
+create procedure p1(tbl char(10), v int)
+begin
+set @s = concat('insert into ', tbl, ' values (?)');
+set @v = v;
+prepare stmt1 from @s;
+execute stmt1 using @v;
+deallocate prepare stmt1;
+end|
+set global init_connect="call p1('t1', 11)";
+select * from t1;
+x
+3
+5
+7
+11
+drop procedure p1;
+create function f1() returns int
+begin
+declare n int;
+select count(*) into n from t1;
+return n;
+end|
+set global init_connect="set @x = f1()";
+select @x;
+@x
+4
+set global init_connect="create view v1 as select f1()";
+select * from v1;
+f1()
+4
+set global init_connect="drop view v1";
+select * from v1;
+ERROR 42S02: Table 'test.v1' doesn't exist
+drop function f1;
+create trigger trg1
+after insert on t2
+for each row
+insert into t1 values (new.y);
+set global init_connect="insert into t2 values (13), (17), (19)";
+select * from t1;
+x
+3
+5
+7
+11
+13
+17
+19
+drop trigger trg1;
+set global init_connect=default;
+revoke all privileges, grant option from mysqltest1@localhost;
+drop user mysqltest1@localhost;
+drop table t1, t2;