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atutomatic merge of 5.1-bugteam into bug37627

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This commit is contained in:
Georgi Kodinov 2008-07-04 18:15:15 +03:00
commit 644d920a51
9 changed files with 112 additions and 64 deletions
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66
mysql-test/r/ps_ddl.result
View File

@ -290,7 +290,7 @@ SUCCESS
# Test 7-b: dependent FUNCTION has changed
#
# Note, this scenario is not supported, subject of Bug#12093
# Note, this scenario is supported, subject of Bug#12093
#
drop trigger t1_ai;
create trigger t1_ai after insert on t1 for each row
@ -305,8 +305,7 @@ select @var;
drop function f1;
create function f1 (a int) returns int return 0;
execute stmt using @var;
ERROR 42000: FUNCTION test.f1 does not exist
call p_verify_reprepare_count(0);
call p_verify_reprepare_count(1);
SUCCESS
drop function f1;
@ -359,8 +358,14 @@ a
drop view v1;
create view v1 as select a from t2;
set @var=8;
# XXX: bug, the SQL statement in the trigger is still
# pointing at table 't3', since the view was expanded
# at first statement execution.
# Repreparation of the main statement doesn't cause repreparation
# of trigger statements.
execute stmt using @var;
call p_verify_reprepare_count(0);
ERROR 42S02: Table 'test.t3' doesn't exist
call p_verify_reprepare_count(1);
SUCCESS
#
@ -377,7 +382,6 @@ select * from t3;
a
6
7
8
flush table t1;
set @var=9;
execute stmt using @var;
@ -392,7 +396,6 @@ select * from t3;
a
6
7
8
drop view v1;
drop table t1,t2,t3;
# Test 7-d: dependent TABLE has changed
@ -798,14 +801,17 @@ SUCCESS
drop function f1;
create function f1() returns int return 2;
# XXX: Bug#12093. We only get a different error
# XXX: Used to be another manifestation of Bug#12093.
# We only used to get a different error
# message because the non-existing procedure error is masked
# by the view.
execute stmt;
ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
f1()
2
execute stmt;
ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
call p_verify_reprepare_count(0);
f1()
2
call p_verify_reprepare_count(1);
SUCCESS
# Part 18b: dependent procedure has changed (referred to via a function)
@ -831,19 +837,20 @@ SUCCESS
drop procedure p1;
create procedure p1(out x int) select max(a) from t2 into x;
# XXX: bug. The prelocked list is not invalidated
# and we keep opening table t1, whereas the procedure
# XXX: used to be a bug. The prelocked list was not invalidated
# and we kept opening table t1, whereas the procedure
# is now referring to table t2
execute stmt;
ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
call p_verify_reprepare_count(0);
f1()
6
call p_verify_reprepare_count(1);
SUCCESS
flush table t1;
execute stmt;
f1()
6
call p_verify_reprepare_count(1);
call p_verify_reprepare_count(0);
SUCCESS
execute stmt;
@ -1528,7 +1535,6 @@ drop view v_27690_1;
drop table v_27690_2;
deallocate prepare stmt;
#=====================================================================
# TODO: fix the below two bugs and modify their tests
#
# Bug#21294 Executing a prepared statement that executes
# a stored function which was recreat
@ -1541,12 +1547,14 @@ f1()
drop function f1;
create function f1() returns int return 10;
execute stmt;
ERROR 42000: FUNCTION test.f1 does not exist
f1()
10
drop function f1;
create function f1() returns int return 20;
execute stmt;
ERROR 42000: FUNCTION test.f1 does not exist
call p_verify_reprepare_count(0);
f1()
20
call p_verify_reprepare_count(2);
SUCCESS
drop function f1;
@ -1573,19 +1581,21 @@ execute stmt_sp;
a
drop function f_12093_unrelated;
drop procedure p_12093_unrelated;
# XXX: bug
# XXX: used to be a bug
execute stmt_sf;
ERROR 42000: FUNCTION test.f_12093 does not exist
# XXX: bug
f_12093()
0
# XXX: used to be a bug
execute stmt_sp;
ERROR 42000: PROCEDURE test.p_12093 does not exist
# XXX: bug
a
# XXX: used to be a bug
execute stmt_sf;
ERROR 42000: FUNCTION test.f_12093 does not exist
# XXX: bug
f_12093()
0
# XXX: used to be a bug
execute stmt_sp;
ERROR 42000: PROCEDURE test.p_12093 does not exist
call p_verify_reprepare_count(0);
a
call p_verify_reprepare_count(2);
SUCCESS
drop table t_12093;

2
mysql-test/r/ps_ddl1.result
View File

@ -460,7 +460,7 @@ create schema mysqltest;
end|
execute stmt;
ERROR 42000: PROCEDURE test.p1 does not exist
call p_verify_reprepare_count(0);
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;

5
mysql-test/r/sp-error.result
View File

@ -796,7 +796,7 @@ bug11834_2()
10
drop function bug11834_1;
execute stmt;
ERROR 42000: FUNCTION test.bug11834_2 does not exist
ERROR 42000: FUNCTION test.bug11834_1 does not exist
deallocate prepare stmt;
drop function bug11834_2;
DROP FUNCTION IF EXISTS bug12953|
@ -1045,7 +1045,8 @@ select bug12329();
bug12329()
101
execute stmt1;
ERROR 42S02: Table 'test.t2' doesn't exist
bug12329()
101
deallocate prepare stmt1;
drop function bug12329;
drop table t1, t2;

50
mysql-test/t/ps_ddl.test
View File

@ -299,7 +299,7 @@ call p_verify_reprepare_count(0);
--echo # Test 7-b: dependent FUNCTION has changed
--echo #
--echo # Note, this scenario is not supported, subject of Bug#12093
--echo # Note, this scenario is supported, subject of Bug#12093
--echo #
drop trigger t1_ai;
create trigger t1_ai after insert on t1 for each row
@ -311,9 +311,8 @@ execute stmt using @var;
select @var;
drop function f1;
create function f1 (a int) returns int return 0;
--error ER_SP_DOES_NOT_EXIST
execute stmt using @var;
call p_verify_reprepare_count(0);
call p_verify_reprepare_count(1);
drop function f1;
deallocate prepare stmt;
@ -353,8 +352,14 @@ select * from t2;
drop view v1;
create view v1 as select a from t2;
set @var=8;
--echo # XXX: bug, the SQL statement in the trigger is still
--echo # pointing at table 't3', since the view was expanded
--echo # at first statement execution.
--echo # Repreparation of the main statement doesn't cause repreparation
--echo # of trigger statements.
--error ER_NO_SUCH_TABLE
execute stmt using @var;
call p_verify_reprepare_count(0);
call p_verify_reprepare_count(1);
--echo #
--echo # Sic: the insert went into t3, even though the view now
--echo # points at t2. This is because neither the merged view
@ -703,14 +708,13 @@ execute stmt;
call p_verify_reprepare_count(0);
drop function f1;
create function f1() returns int return 2;
--echo # XXX: Bug#12093. We only get a different error
--echo # XXX: Used to be another manifestation of Bug#12093.
--echo # We only used to get a different error
--echo # message because the non-existing procedure error is masked
--echo # by the view.
--error ER_VIEW_INVALID
execute stmt;
--error ER_VIEW_INVALID
execute stmt;
call p_verify_reprepare_count(0);
call p_verify_reprepare_count(1);
--echo # Part 18b: dependent procedure has changed (referred to via a function)
@ -734,15 +738,14 @@ execute stmt;
call p_verify_reprepare_count(0);
drop procedure p1;
create procedure p1(out x int) select max(a) from t2 into x;
--echo # XXX: bug. The prelocked list is not invalidated
--echo # and we keep opening table t1, whereas the procedure
--echo # XXX: used to be a bug. The prelocked list was not invalidated
--echo # and we kept opening table t1, whereas the procedure
--echo # is now referring to table t2
--error ER_VIEW_INVALID
execute stmt;
call p_verify_reprepare_count(0);
flush table t1;
execute stmt;
call p_verify_reprepare_count(1);
flush table t1;
execute stmt;
call p_verify_reprepare_count(0);
execute stmt;
--echo # Test 18-c: dependent VIEW has changed
@ -1326,7 +1329,6 @@ drop table v_27690_2;
deallocate prepare stmt;
--echo #=====================================================================
--echo # TODO: fix the below two bugs and modify their tests
--echo #
--echo # Bug#21294 Executing a prepared statement that executes
--echo # a stored function which was recreat
@ -1341,15 +1343,13 @@ drop function f1;
create function f1() returns int return 10;
# might pass or fail, implementation dependent
--error ER_SP_DOES_NOT_EXIST
execute stmt;
drop function f1;
create function f1() returns int return 20;
--error ER_SP_DOES_NOT_EXIST
execute stmt;
call p_verify_reprepare_count(0);
call p_verify_reprepare_count(2);
drop function f1;
deallocate prepare stmt;
@ -1388,20 +1388,16 @@ drop procedure p_12093_unrelated;
connection default;
--echo # XXX: bug
--error ER_SP_DOES_NOT_EXIST
--echo # XXX: used to be a bug
execute stmt_sf;
--echo # XXX: bug
--error ER_SP_DOES_NOT_EXIST
--echo # XXX: used to be a bug
execute stmt_sp;
--echo # XXX: bug
--error ER_SP_DOES_NOT_EXIST
--echo # XXX: used to be a bug
execute stmt_sf;
--echo # XXX: bug
--error ER_SP_DOES_NOT_EXIST
--echo # XXX: used to be a bug
execute stmt_sp;
call p_verify_reprepare_count(0);
call p_verify_reprepare_count(2);
disconnect con1;

2
mysql-test/t/ps_ddl1.test
View File

@ -363,7 +363,7 @@ end|
delimiter ;|
--error ER_SP_DOES_NOT_EXIST
execute stmt;
call p_verify_reprepare_count(0);
call p_verify_reprepare_count(1);
--error ER_SP_DOES_NOT_EXIST
execute stmt;
call p_verify_reprepare_count(0);

4
mysql-test/t/sp-error.test
View File

@ -1470,10 +1470,6 @@ execute stmt1;
drop function bug12329;
create function bug12329() returns int return (select a+100 from t2);
select bug12329();
# Until we implement proper mechanism for invalidation of PS/SP when table
# or SP's are changed the following statement will fail with 'Table ... was
# not locked' error (this mechanism should be based on the new TDC).
--error ER_NO_SUCH_TABLE
execute stmt1;
deallocate prepare stmt1;
drop function bug12329;

13
sql/sp_cache.cc
View File

@ -210,6 +210,19 @@ void sp_cache_flush_obsolete(sp_cache **cp)
}
/**
Return the current version of the cache.
*/
ulong sp_cache_version(sp_cache **cp)
{
sp_cache *c= *cp;
if (c)
return c->version;
return 0;
}
/*************************************************************************
Internal functions
*************************************************************************/

1
sql/sp_cache.h
View File

@ -58,5 +58,6 @@ void sp_cache_insert(sp_cache **cp, sp_head *sp);
sp_head *sp_cache_lookup(sp_cache **cp, sp_name *name);
void sp_cache_invalidate();
void sp_cache_flush_obsolete(sp_cache **cp);
ulong sp_cache_version(sp_cache **cp);
#endif /* _SP_CACHE_H_ */

33
sql/sql_prepare.cc
View File

@ -169,6 +169,8 @@ private:
SELECT_LEX and other classes).
*/
MEM_ROOT main_mem_root;
/* Version of the stored functions cache at the time of prepare. */
ulong m_sp_cache_version;
private:
bool set_db(const char *db, uint db_length);
bool set_parameters(String *expanded_query,
@ -2819,7 +2821,8 @@ Prepared_statement::Prepared_statement(THD *thd_arg, Protocol *protocol_arg)
param_array(0),
param_count(0),
last_errno(0),
flags((uint) IS_IN_USE)
flags((uint) IS_IN_USE),
m_sp_cache_version(0)
{
init_sql_alloc(&main_mem_root, thd_arg->variables.query_alloc_block_size,
thd_arg->variables.query_prealloc_size);
@ -3072,6 +3075,20 @@ bool Prepared_statement::prepare(const char *packet, uint packet_len)
init_stmt_after_parse(lex);
state= Query_arena::PREPARED;
flags&= ~ (uint) IS_IN_USE;
/*
This is for prepared statement validation purposes.
A statement looks up and pre-loads all its stored functions
at prepare. Later on, if a function is gone from the cache,
execute may fail.
Remember the cache version to be able to invalidate the prepared
statement at execute if it changes.
We only need to care about version of the stored functions cache:
if a prepared statement uses a stored procedure, it's indirect,
via a stored function. The only exception is SQLCOM_CALL,
but the latter one looks up the stored procedure each time
it's invoked, rather than once at prepare.
*/
m_sp_cache_version= sp_cache_version(&thd->sp_func_cache);
/*
Log COM_EXECUTE to the general log. Note, that in case of SQL
@ -3383,6 +3400,7 @@ Prepared_statement::swap_prepared_statement(Prepared_statement *copy)
swap_variables(LEX_STRING, name, copy->name);
/* Ditto */
swap_variables(char *, db, copy->db);
swap_variables(ulong, m_sp_cache_version, copy->m_sp_cache_version);
DBUG_ASSERT(db_length == copy->db_length);
DBUG_ASSERT(param_count == copy->param_count);
@ -3442,6 +3460,19 @@ bool Prepared_statement::execute(String *expanded_query, bool open_cursor)
return TRUE;
}
/*
Reprepare the statement if we're using stored functions
and the version of the stored routines cache has changed.
*/
if (lex->uses_stored_routines() &&
m_sp_cache_version != sp_cache_version(&thd->sp_func_cache) &&
thd->m_reprepare_observer &&
thd->m_reprepare_observer->report_error(thd))
{
return TRUE;
}
/*
For SHOW VARIABLES lex->result is NULL, as it's a non-SELECT
command. For such queries we don't return an error and don't