mariadb/mysql-test/r/ps_ddl.result

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drop temporary table if exists t1, t2, t3;
drop table if exists t1, t2, t3;
drop procedure if exists p_verify_reprepare_count;
drop procedure if exists p1;
drop function if exists f1;
drop view if exists v1, v2;
create procedure p_verify_reprepare_count(expected int)
begin
declare old_reprepare_count int default @reprepare_count;
select variable_value from
information_schema.session_status where
variable_name='com_stmt_reprepare'
into @reprepare_count;
if old_reprepare_count + expected <> @reprepare_count then
select concat("Expected: ", expected,
", actual: ", @reprepare_count - old_reprepare_count)
as "ERROR";
else
select '' as "SUCCESS";
end if;
end|
set @reprepare_count= 0;
flush status;
=====================================================================
Part 1: NOTHING -> TABLE transitions
=====================================================================
prepare stmt from "select * from t1";
ERROR 42S02: Table 'test.t1' doesn't exist
=====================================================================
Part 2: NOTHING -> TEMPORARY TABLE transitions
=====================================================================
=====================================================================
Part 3: NOTHING -> VIEW transitions
=====================================================================
=====================================================================
Part 4: TABLE -> NOTHING transitions
=====================================================================
# Test 4-a: select ... from <table>
create table t1 (a int);
prepare stmt from "select * from t1";
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
drop table t1;
execute stmt;
ERROR 42S02: Table 'test.t1' doesn't exist
call p_verify_reprepare_count(0);
SUCCESS
execute stmt;
ERROR 42S02: Table 'test.t1' doesn't exist
call p_verify_reprepare_count(0);
SUCCESS
deallocate prepare stmt;
# Test 4-b: TABLE -> NOTHING by renaming the table
create table t1 (a int);
prepare stmt from "select * from t1";
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
rename table t1 to t2;
execute stmt;
ERROR 42S02: Table 'test.t1' doesn't exist
call p_verify_reprepare_count(0);
SUCCESS
execute stmt;
ERROR 42S02: Table 'test.t1' doesn't exist
call p_verify_reprepare_count(0);
SUCCESS
deallocate prepare stmt;
drop table t2;
=====================================================================
Part 5: TABLE -> TABLE (DDL) transitions
=====================================================================
create table t1 (a int);
prepare stmt from "select a from t1";
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
alter table t1 add column (b int);
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
drop table t1;
deallocate prepare stmt;
=====================================================================
Part 6: TABLE -> TABLE (TRIGGER) transitions
=====================================================================
# Test 6-a: adding a relevant trigger
create table t1 (a int);
prepare stmt from "insert into t1 (a) value (?)";
set @val=1;
execute stmt using @val;
call p_verify_reprepare_count(0);
SUCCESS
create trigger t1_bi before insert on t1 for each row
set @message= new.a;
set @val=2;
execute stmt using @val;
call p_verify_reprepare_count(1);
SUCCESS
select @message;
@message
2
set @val=3;
execute stmt using @val;
call p_verify_reprepare_count(0);
SUCCESS
select @message;
@message
3
prepare stmt from "insert into t1 (a) value (?)";
set @val=4;
execute stmt using @val;
call p_verify_reprepare_count(0);
SUCCESS
select @message;
@message
4
# Test 6-b: adding an irrelevant trigger
create trigger t1_bd before delete on t1 for each row
set @message= old.a;
set @val=5;
execute stmt using @val;
call p_verify_reprepare_count(1);
SUCCESS
select @message;
@message
5
set @val=6;
execute stmt using @val;
call p_verify_reprepare_count(0);
SUCCESS
select @message;
@message
6
prepare stmt from "insert into t1 (a) value (?)";
set @val=7;
execute stmt using @val;
call p_verify_reprepare_count(0);
SUCCESS
select @message;
@message
7
# Test 6-c: changing a relevant trigger
drop trigger t1_bi;
create trigger t1_bi before insert on t1 for each row
set @message= concat("new trigger: ", new.a);
set @val=8;
execute stmt using @val;
call p_verify_reprepare_count(1);
SUCCESS
select @message;
@message
new trigger: 8
set @val=9;
execute stmt using @val;
call p_verify_reprepare_count(0);
SUCCESS
select @message;
@message
new trigger: 9
prepare stmt from "insert into t1 (a) value (?)";
set @val=10;
execute stmt using @val;
call p_verify_reprepare_count(0);
SUCCESS
select @message;
@message
new trigger: 10
# Test 6-d: changing an irrelevant trigger
drop trigger t1_bd;
set @val=11;
execute stmt using @val;
call p_verify_reprepare_count(1);
SUCCESS
select @message;
@message
new trigger: 11
Test 6-e: removing a relevant trigger
drop trigger t1_bi;
set @val=12;
execute stmt using @val;
call p_verify_reprepare_count(1);
SUCCESS
select @message;
@message
new trigger: 11
set @val=13;
execute stmt using @val;
call p_verify_reprepare_count(0);
SUCCESS
select @message;
@message
new trigger: 11
prepare stmt from "insert into t1 (a) value (?)";
set @val=14;
execute stmt using @val;
call p_verify_reprepare_count(0);
SUCCESS
select @message;
@message
new trigger: 11
select * from t1 order by a;
a
1
2
3
4
5
6
7
8
9
10
11
12
13
14
drop table t1;
deallocate prepare stmt;
=====================================================================
Part 7: TABLE -> TABLE (TRIGGER dependencies) transitions
=====================================================================
# Test 7-a: dependent PROCEDURE has changed
#
create table t1 (a int);
create trigger t1_ai after insert on t1 for each row
call p1(new.a);
create procedure p1(a int) begin end;
prepare stmt from "insert into t1 (a) values (?)";
set @var= 1;
execute stmt using @var;
drop procedure p1;
create procedure p1 (a int) begin end;
set @var= 2;
execute stmt using @var;
# Cleanup
drop procedure p1;
Apply and review: 3655 Jon Olav Hauglid 2009-10-19 Bug #30977 Concurrent statement using stored function and DROP FUNCTION breaks SBR Bug #48246 assert in close_thread_table Implement a fix for: Bug #41804 purge stored procedure cache causes mysterious hang for many minutes Bug #49972 Crash in prepared statements The problem was that concurrent execution of DML statements that use stored functions and DDL statements that drop/modify the same function might result in incorrect binary log in statement (and mixed) mode and therefore break replication. This patch fixes the problem by introducing metadata locking for stored procedures and functions. This is similar to what is done in Bug#25144 for views. Procedures and functions now are locked using metadata locks until the transaction is either committed or rolled back. This prevents other statements from modifying the procedure/function while it is being executed. This provides commit ordering - guaranteeing serializability across multiple transactions and thus fixes the reported binlog problem. Note that we do not take locks for top-level CALLs. This means that procedures called directly are not protected from changes by simultaneous DDL operations so they are executed at the state they had at the time of the CALL. By not taking locks for top-level CALLs, we still allow transactions to be started inside procedures. This patch also changes stored procedure cache invalidation. Upon a change of cache version, we no longer invalidate the entire cache, but only those routines which we use, only when a statement is executed that uses them. This patch also changes the logic of prepared statement validation. A stored procedure used by a prepared statement is now validated only once a metadata lock has been acquired. A version mismatch causes a flush of the obsolete routine from the cache and statement reprepare. Incompatible changes: 1) ER_LOCK_DEADLOCK is reported for a transaction trying to access a procedure/function that is locked by a DDL operation in another connection. 2) Procedure/function DDL operations are now prohibited in LOCK TABLES mode as exclusive locks must be taken all at once and LOCK TABLES provides no way to specifiy procedures/functions to be locked. Test cases have been added to sp-lock.test and rpl_sp.test. Work on this bug has very much been a team effort and this patch includes and is based on contributions from Davi Arnaut, Dmitry Lenev, Magne Mæhre and Konstantin Osipov. mysql-test/r/ps_ddl.result: Update results (Bug#30977). mysql-test/r/ps_ddl1.result: Update results (Bug#30977). mysql-test/r/sp-error.result: Update results (Bug#30977). mysql-test/r/sp-lock.result: Update results (Bug#30977). mysql-test/suite/rpl/r/rpl_sp.result: Update results (Bug#30977). mysql-test/suite/rpl/t/rpl_sp.test: Add a test case for Bug#30977. mysql-test/t/ps_ddl.test: Update comments. We no longer re-prepare a prepared statement when a stored procedure used in top-level CALL is changed. mysql-test/t/ps_ddl1.test: Modifying stored procedure p1 no longer invalidates prepared statement "call p1" -- we can re-use the prepared statement without invalidation. mysql-test/t/sp-error.test: Use a constant for an error value. mysql-test/t/sp-lock.test: Add test coverage for Bug#30977. sql/lock.cc: Implement lock_routine_name() - a way to acquire an exclusive metadata lock (ex- name-lock) on stored procedure/function. sql/sp.cc: Change semantics of sp_cache_routine() -- now it has an option to make sure that the routine that is cached is up to date (has the latest sp cache version). Add sp_cache_invalidate() to sp_drop_routine(), where it was missing (a bug!). Acquire metadata locks for SP DDL (ALTER/CREATE/DROP). This is the core of the fix for Bug#30977. Since caching and cache invalidation scheme was changed, make sure we don't invalidate the SP cache in the middle of a stored routine execution. At the same time, make sure we don't access stale data due to lack of invalidation. For that, change ALTER FUNCTION/PROCEDURE to not use the cache, and SHOW PROCEDURE CODE/SHOW CREATE PROCEDURE/FUNCTION to always read an up to date version of the routine from the cache. sql/sp.h: Add a helper wrapper around sp_cache_routine(). sql/sp_cache.cc: Implement new sp_cache_version() and sp_cache_flush_obsolete(). Now we flush stale routines individually, rather than all at once. sql/sp_cache.h: Update signatures of sp_cache_version() and sp_cache_flush_obsolete(). sql/sp_head.cc: Add a default initialization of sp_head::m_sp_cache_version. Remove a redundant sp_head::create(). sql/sp_head.h: Add m_sp_cache_version to sp_head class - we now keep track of every routine in the stored procedure cache, rather than of the entire cache. sql/sql_base.cc: Implement prelocking for stored routines. Validate stored routines after they were locked. Flush obsolete routines upon next access, one by one, not all at once (Bug#41804). Style fixes. sql/sql_class.h: Rename a Open_table_context method. sql/sql_parse.cc: Make sure stored procedures DDL commits the active transaction (issues an implicit commit before and after). Remove sp_head::create(), a pure redundancy. Move the semantical check during alter routine inside sp_update_routine() code in order to: - avoid using SP cache during update, it may be obsolete. - speed up and simplify the update procedure. Remove sp_cache_flush_obsolete() calls, we no longer flush the entire cache, ever, stale routines are flushed before next use, one at a time. sql/sql_prepare.cc: Move routine metadata validation to open_and_process_routine(). Fix Bug#49972 (don't swap flags at reprepare). Reset Sroutine_hash_entries in reinit_stmt_before_use(). Remove SP cache invalidation, it's now done by open_tables(). sql/sql_show.cc: Fix a warning: remove an unused label. sql/sql_table.cc: Reset mdl_request.ticket for tickets acquired for routines inlined through a view, in CHECK TABLE statement, to satisfy an MDL assert. sql/sql_update.cc: Move the cleanup of "translation items" to close_tables_for_reopen(), since it's needed in all cases when we back off, not just the back-off in multi-update. This fixes a bug when the server would crash on attempt to back off when opening tables for a statement that uses information_schema tables.
2009-12-29 13:19:05 +01:00
call p_verify_reprepare_count(1);
SUCCESS
# Test 7-b: dependent FUNCTION has changed
#
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
# Note, this scenario is supported, subject of Bug#12093
#
drop trigger t1_ai;
create trigger t1_ai after insert on t1 for each row
select f1(new.a+1) into @var;
create function f1 (a int) returns int return a;
prepare stmt from "insert into t1(a) values (?)";
set @var=3;
execute stmt using @var;
select @var;
@var
4
drop function f1;
create function f1 (a int) returns int return 0;
execute stmt using @var;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
call p_verify_reprepare_count(1);
SUCCESS
drop function f1;
deallocate prepare stmt;
# Test 7-c: dependent VIEW has changed
#
# Note, this scenario is not functioning correctly, see
# Bug#33255 Trigger using views and view ddl : corrupted triggers
# and Bug #33000 Triggers do not detect changes in meta-data.
#
drop trigger t1_ai;
create table t2 (a int unique);
create table t3 (a int unique);
create view v1 as select a from t2;
create trigger t1_ai after insert on t1 for each row
insert into v1 (a) values (new.a);
# Demonstrate that the same bug is present
# without prepared statements
insert into t1 (a) values (5);
select * from t2;
a
5
select * from t3;
a
drop view v1;
create view v1 as select a from t3;
insert into t1 (a) values (6);
ERROR 42S02: Table 'test.t2' doesn't exist
flush table t1;
insert into t1 (a) values (6);
select * from t2;
a
5
select * from t3;
a
6
prepare stmt from "insert into t1 (a) values (?)";
set @var=7;
execute stmt using @var;
call p_verify_reprepare_count(0);
SUCCESS
select * from t3;
a
6
7
select * from t2;
a
5
drop view v1;
create view v1 as select a from t2;
set @var=8;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
# XXX: bug, the SQL statement in the trigger is still
# pointing at table 't3', since the view was expanded
# at first statement execution.
Apply and review: 3655 Jon Olav Hauglid 2009-10-19 Bug #30977 Concurrent statement using stored function and DROP FUNCTION breaks SBR Bug #48246 assert in close_thread_table Implement a fix for: Bug #41804 purge stored procedure cache causes mysterious hang for many minutes Bug #49972 Crash in prepared statements The problem was that concurrent execution of DML statements that use stored functions and DDL statements that drop/modify the same function might result in incorrect binary log in statement (and mixed) mode and therefore break replication. This patch fixes the problem by introducing metadata locking for stored procedures and functions. This is similar to what is done in Bug#25144 for views. Procedures and functions now are locked using metadata locks until the transaction is either committed or rolled back. This prevents other statements from modifying the procedure/function while it is being executed. This provides commit ordering - guaranteeing serializability across multiple transactions and thus fixes the reported binlog problem. Note that we do not take locks for top-level CALLs. This means that procedures called directly are not protected from changes by simultaneous DDL operations so they are executed at the state they had at the time of the CALL. By not taking locks for top-level CALLs, we still allow transactions to be started inside procedures. This patch also changes stored procedure cache invalidation. Upon a change of cache version, we no longer invalidate the entire cache, but only those routines which we use, only when a statement is executed that uses them. This patch also changes the logic of prepared statement validation. A stored procedure used by a prepared statement is now validated only once a metadata lock has been acquired. A version mismatch causes a flush of the obsolete routine from the cache and statement reprepare. Incompatible changes: 1) ER_LOCK_DEADLOCK is reported for a transaction trying to access a procedure/function that is locked by a DDL operation in another connection. 2) Procedure/function DDL operations are now prohibited in LOCK TABLES mode as exclusive locks must be taken all at once and LOCK TABLES provides no way to specifiy procedures/functions to be locked. Test cases have been added to sp-lock.test and rpl_sp.test. Work on this bug has very much been a team effort and this patch includes and is based on contributions from Davi Arnaut, Dmitry Lenev, Magne Mæhre and Konstantin Osipov. mysql-test/r/ps_ddl.result: Update results (Bug#30977). mysql-test/r/ps_ddl1.result: Update results (Bug#30977). mysql-test/r/sp-error.result: Update results (Bug#30977). mysql-test/r/sp-lock.result: Update results (Bug#30977). mysql-test/suite/rpl/r/rpl_sp.result: Update results (Bug#30977). mysql-test/suite/rpl/t/rpl_sp.test: Add a test case for Bug#30977. mysql-test/t/ps_ddl.test: Update comments. We no longer re-prepare a prepared statement when a stored procedure used in top-level CALL is changed. mysql-test/t/ps_ddl1.test: Modifying stored procedure p1 no longer invalidates prepared statement "call p1" -- we can re-use the prepared statement without invalidation. mysql-test/t/sp-error.test: Use a constant for an error value. mysql-test/t/sp-lock.test: Add test coverage for Bug#30977. sql/lock.cc: Implement lock_routine_name() - a way to acquire an exclusive metadata lock (ex- name-lock) on stored procedure/function. sql/sp.cc: Change semantics of sp_cache_routine() -- now it has an option to make sure that the routine that is cached is up to date (has the latest sp cache version). Add sp_cache_invalidate() to sp_drop_routine(), where it was missing (a bug!). Acquire metadata locks for SP DDL (ALTER/CREATE/DROP). This is the core of the fix for Bug#30977. Since caching and cache invalidation scheme was changed, make sure we don't invalidate the SP cache in the middle of a stored routine execution. At the same time, make sure we don't access stale data due to lack of invalidation. For that, change ALTER FUNCTION/PROCEDURE to not use the cache, and SHOW PROCEDURE CODE/SHOW CREATE PROCEDURE/FUNCTION to always read an up to date version of the routine from the cache. sql/sp.h: Add a helper wrapper around sp_cache_routine(). sql/sp_cache.cc: Implement new sp_cache_version() and sp_cache_flush_obsolete(). Now we flush stale routines individually, rather than all at once. sql/sp_cache.h: Update signatures of sp_cache_version() and sp_cache_flush_obsolete(). sql/sp_head.cc: Add a default initialization of sp_head::m_sp_cache_version. Remove a redundant sp_head::create(). sql/sp_head.h: Add m_sp_cache_version to sp_head class - we now keep track of every routine in the stored procedure cache, rather than of the entire cache. sql/sql_base.cc: Implement prelocking for stored routines. Validate stored routines after they were locked. Flush obsolete routines upon next access, one by one, not all at once (Bug#41804). Style fixes. sql/sql_class.h: Rename a Open_table_context method. sql/sql_parse.cc: Make sure stored procedures DDL commits the active transaction (issues an implicit commit before and after). Remove sp_head::create(), a pure redundancy. Move the semantical check during alter routine inside sp_update_routine() code in order to: - avoid using SP cache during update, it may be obsolete. - speed up and simplify the update procedure. Remove sp_cache_flush_obsolete() calls, we no longer flush the entire cache, ever, stale routines are flushed before next use, one at a time. sql/sql_prepare.cc: Move routine metadata validation to open_and_process_routine(). Fix Bug#49972 (don't swap flags at reprepare). Reset Sroutine_hash_entries in reinit_stmt_before_use(). Remove SP cache invalidation, it's now done by open_tables(). sql/sql_show.cc: Fix a warning: remove an unused label. sql/sql_table.cc: Reset mdl_request.ticket for tickets acquired for routines inlined through a view, in CHECK TABLE statement, to satisfy an MDL assert. sql/sql_update.cc: Move the cleanup of "translation items" to close_tables_for_reopen(), since it's needed in all cases when we back off, not just the back-off in multi-update. This fixes a bug when the server would crash on attempt to back off when opening tables for a statement that uses information_schema tables.
2009-12-29 13:19:05 +01:00
# Since the view definition is inlined in the statement
# at prepare, changing the view definition does not cause
# repreparation.
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
# Repreparation of the main statement doesn't cause repreparation
# of trigger statements.
execute stmt using @var;
Apply and review: 3655 Jon Olav Hauglid 2009-10-19 Bug #30977 Concurrent statement using stored function and DROP FUNCTION breaks SBR Bug #48246 assert in close_thread_table Implement a fix for: Bug #41804 purge stored procedure cache causes mysterious hang for many minutes Bug #49972 Crash in prepared statements The problem was that concurrent execution of DML statements that use stored functions and DDL statements that drop/modify the same function might result in incorrect binary log in statement (and mixed) mode and therefore break replication. This patch fixes the problem by introducing metadata locking for stored procedures and functions. This is similar to what is done in Bug#25144 for views. Procedures and functions now are locked using metadata locks until the transaction is either committed or rolled back. This prevents other statements from modifying the procedure/function while it is being executed. This provides commit ordering - guaranteeing serializability across multiple transactions and thus fixes the reported binlog problem. Note that we do not take locks for top-level CALLs. This means that procedures called directly are not protected from changes by simultaneous DDL operations so they are executed at the state they had at the time of the CALL. By not taking locks for top-level CALLs, we still allow transactions to be started inside procedures. This patch also changes stored procedure cache invalidation. Upon a change of cache version, we no longer invalidate the entire cache, but only those routines which we use, only when a statement is executed that uses them. This patch also changes the logic of prepared statement validation. A stored procedure used by a prepared statement is now validated only once a metadata lock has been acquired. A version mismatch causes a flush of the obsolete routine from the cache and statement reprepare. Incompatible changes: 1) ER_LOCK_DEADLOCK is reported for a transaction trying to access a procedure/function that is locked by a DDL operation in another connection. 2) Procedure/function DDL operations are now prohibited in LOCK TABLES mode as exclusive locks must be taken all at once and LOCK TABLES provides no way to specifiy procedures/functions to be locked. Test cases have been added to sp-lock.test and rpl_sp.test. Work on this bug has very much been a team effort and this patch includes and is based on contributions from Davi Arnaut, Dmitry Lenev, Magne Mæhre and Konstantin Osipov. mysql-test/r/ps_ddl.result: Update results (Bug#30977). mysql-test/r/ps_ddl1.result: Update results (Bug#30977). mysql-test/r/sp-error.result: Update results (Bug#30977). mysql-test/r/sp-lock.result: Update results (Bug#30977). mysql-test/suite/rpl/r/rpl_sp.result: Update results (Bug#30977). mysql-test/suite/rpl/t/rpl_sp.test: Add a test case for Bug#30977. mysql-test/t/ps_ddl.test: Update comments. We no longer re-prepare a prepared statement when a stored procedure used in top-level CALL is changed. mysql-test/t/ps_ddl1.test: Modifying stored procedure p1 no longer invalidates prepared statement "call p1" -- we can re-use the prepared statement without invalidation. mysql-test/t/sp-error.test: Use a constant for an error value. mysql-test/t/sp-lock.test: Add test coverage for Bug#30977. sql/lock.cc: Implement lock_routine_name() - a way to acquire an exclusive metadata lock (ex- name-lock) on stored procedure/function. sql/sp.cc: Change semantics of sp_cache_routine() -- now it has an option to make sure that the routine that is cached is up to date (has the latest sp cache version). Add sp_cache_invalidate() to sp_drop_routine(), where it was missing (a bug!). Acquire metadata locks for SP DDL (ALTER/CREATE/DROP). This is the core of the fix for Bug#30977. Since caching and cache invalidation scheme was changed, make sure we don't invalidate the SP cache in the middle of a stored routine execution. At the same time, make sure we don't access stale data due to lack of invalidation. For that, change ALTER FUNCTION/PROCEDURE to not use the cache, and SHOW PROCEDURE CODE/SHOW CREATE PROCEDURE/FUNCTION to always read an up to date version of the routine from the cache. sql/sp.h: Add a helper wrapper around sp_cache_routine(). sql/sp_cache.cc: Implement new sp_cache_version() and sp_cache_flush_obsolete(). Now we flush stale routines individually, rather than all at once. sql/sp_cache.h: Update signatures of sp_cache_version() and sp_cache_flush_obsolete(). sql/sp_head.cc: Add a default initialization of sp_head::m_sp_cache_version. Remove a redundant sp_head::create(). sql/sp_head.h: Add m_sp_cache_version to sp_head class - we now keep track of every routine in the stored procedure cache, rather than of the entire cache. sql/sql_base.cc: Implement prelocking for stored routines. Validate stored routines after they were locked. Flush obsolete routines upon next access, one by one, not all at once (Bug#41804). Style fixes. sql/sql_class.h: Rename a Open_table_context method. sql/sql_parse.cc: Make sure stored procedures DDL commits the active transaction (issues an implicit commit before and after). Remove sp_head::create(), a pure redundancy. Move the semantical check during alter routine inside sp_update_routine() code in order to: - avoid using SP cache during update, it may be obsolete. - speed up and simplify the update procedure. Remove sp_cache_flush_obsolete() calls, we no longer flush the entire cache, ever, stale routines are flushed before next use, one at a time. sql/sql_prepare.cc: Move routine metadata validation to open_and_process_routine(). Fix Bug#49972 (don't swap flags at reprepare). Reset Sroutine_hash_entries in reinit_stmt_before_use(). Remove SP cache invalidation, it's now done by open_tables(). sql/sql_show.cc: Fix a warning: remove an unused label. sql/sql_table.cc: Reset mdl_request.ticket for tickets acquired for routines inlined through a view, in CHECK TABLE statement, to satisfy an MDL assert. sql/sql_update.cc: Move the cleanup of "translation items" to close_tables_for_reopen(), since it's needed in all cases when we back off, not just the back-off in multi-update. This fixes a bug when the server would crash on attempt to back off when opening tables for a statement that uses information_schema tables.
2009-12-29 13:19:05 +01:00
call p_verify_reprepare_count(0);
SUCCESS
#
# Sic: the insert went into t3, even though the view now
# points at t2. This is because neither the merged view
# nor its prelocking list are affected by view DDL
# The binary log is of course wrong, since it is not
# using prepared statements
#
select * from t2;
a
5
select * from t3;
a
6
7
Apply and review: 3655 Jon Olav Hauglid 2009-10-19 Bug #30977 Concurrent statement using stored function and DROP FUNCTION breaks SBR Bug #48246 assert in close_thread_table Implement a fix for: Bug #41804 purge stored procedure cache causes mysterious hang for many minutes Bug #49972 Crash in prepared statements The problem was that concurrent execution of DML statements that use stored functions and DDL statements that drop/modify the same function might result in incorrect binary log in statement (and mixed) mode and therefore break replication. This patch fixes the problem by introducing metadata locking for stored procedures and functions. This is similar to what is done in Bug#25144 for views. Procedures and functions now are locked using metadata locks until the transaction is either committed or rolled back. This prevents other statements from modifying the procedure/function while it is being executed. This provides commit ordering - guaranteeing serializability across multiple transactions and thus fixes the reported binlog problem. Note that we do not take locks for top-level CALLs. This means that procedures called directly are not protected from changes by simultaneous DDL operations so they are executed at the state they had at the time of the CALL. By not taking locks for top-level CALLs, we still allow transactions to be started inside procedures. This patch also changes stored procedure cache invalidation. Upon a change of cache version, we no longer invalidate the entire cache, but only those routines which we use, only when a statement is executed that uses them. This patch also changes the logic of prepared statement validation. A stored procedure used by a prepared statement is now validated only once a metadata lock has been acquired. A version mismatch causes a flush of the obsolete routine from the cache and statement reprepare. Incompatible changes: 1) ER_LOCK_DEADLOCK is reported for a transaction trying to access a procedure/function that is locked by a DDL operation in another connection. 2) Procedure/function DDL operations are now prohibited in LOCK TABLES mode as exclusive locks must be taken all at once and LOCK TABLES provides no way to specifiy procedures/functions to be locked. Test cases have been added to sp-lock.test and rpl_sp.test. Work on this bug has very much been a team effort and this patch includes and is based on contributions from Davi Arnaut, Dmitry Lenev, Magne Mæhre and Konstantin Osipov. mysql-test/r/ps_ddl.result: Update results (Bug#30977). mysql-test/r/ps_ddl1.result: Update results (Bug#30977). mysql-test/r/sp-error.result: Update results (Bug#30977). mysql-test/r/sp-lock.result: Update results (Bug#30977). mysql-test/suite/rpl/r/rpl_sp.result: Update results (Bug#30977). mysql-test/suite/rpl/t/rpl_sp.test: Add a test case for Bug#30977. mysql-test/t/ps_ddl.test: Update comments. We no longer re-prepare a prepared statement when a stored procedure used in top-level CALL is changed. mysql-test/t/ps_ddl1.test: Modifying stored procedure p1 no longer invalidates prepared statement "call p1" -- we can re-use the prepared statement without invalidation. mysql-test/t/sp-error.test: Use a constant for an error value. mysql-test/t/sp-lock.test: Add test coverage for Bug#30977. sql/lock.cc: Implement lock_routine_name() - a way to acquire an exclusive metadata lock (ex- name-lock) on stored procedure/function. sql/sp.cc: Change semantics of sp_cache_routine() -- now it has an option to make sure that the routine that is cached is up to date (has the latest sp cache version). Add sp_cache_invalidate() to sp_drop_routine(), where it was missing (a bug!). Acquire metadata locks for SP DDL (ALTER/CREATE/DROP). This is the core of the fix for Bug#30977. Since caching and cache invalidation scheme was changed, make sure we don't invalidate the SP cache in the middle of a stored routine execution. At the same time, make sure we don't access stale data due to lack of invalidation. For that, change ALTER FUNCTION/PROCEDURE to not use the cache, and SHOW PROCEDURE CODE/SHOW CREATE PROCEDURE/FUNCTION to always read an up to date version of the routine from the cache. sql/sp.h: Add a helper wrapper around sp_cache_routine(). sql/sp_cache.cc: Implement new sp_cache_version() and sp_cache_flush_obsolete(). Now we flush stale routines individually, rather than all at once. sql/sp_cache.h: Update signatures of sp_cache_version() and sp_cache_flush_obsolete(). sql/sp_head.cc: Add a default initialization of sp_head::m_sp_cache_version. Remove a redundant sp_head::create(). sql/sp_head.h: Add m_sp_cache_version to sp_head class - we now keep track of every routine in the stored procedure cache, rather than of the entire cache. sql/sql_base.cc: Implement prelocking for stored routines. Validate stored routines after they were locked. Flush obsolete routines upon next access, one by one, not all at once (Bug#41804). Style fixes. sql/sql_class.h: Rename a Open_table_context method. sql/sql_parse.cc: Make sure stored procedures DDL commits the active transaction (issues an implicit commit before and after). Remove sp_head::create(), a pure redundancy. Move the semantical check during alter routine inside sp_update_routine() code in order to: - avoid using SP cache during update, it may be obsolete. - speed up and simplify the update procedure. Remove sp_cache_flush_obsolete() calls, we no longer flush the entire cache, ever, stale routines are flushed before next use, one at a time. sql/sql_prepare.cc: Move routine metadata validation to open_and_process_routine(). Fix Bug#49972 (don't swap flags at reprepare). Reset Sroutine_hash_entries in reinit_stmt_before_use(). Remove SP cache invalidation, it's now done by open_tables(). sql/sql_show.cc: Fix a warning: remove an unused label. sql/sql_table.cc: Reset mdl_request.ticket for tickets acquired for routines inlined through a view, in CHECK TABLE statement, to satisfy an MDL assert. sql/sql_update.cc: Move the cleanup of "translation items" to close_tables_for_reopen(), since it's needed in all cases when we back off, not just the back-off in multi-update. This fixes a bug when the server would crash on attempt to back off when opening tables for a statement that uses information_schema tables.
2009-12-29 13:19:05 +01:00
8
flush table t1;
set @var=9;
execute stmt using @var;
call p_verify_reprepare_count(1);
SUCCESS
select * from t2;
a
5
9
select * from t3;
a
6
7
Apply and review: 3655 Jon Olav Hauglid 2009-10-19 Bug #30977 Concurrent statement using stored function and DROP FUNCTION breaks SBR Bug #48246 assert in close_thread_table Implement a fix for: Bug #41804 purge stored procedure cache causes mysterious hang for many minutes Bug #49972 Crash in prepared statements The problem was that concurrent execution of DML statements that use stored functions and DDL statements that drop/modify the same function might result in incorrect binary log in statement (and mixed) mode and therefore break replication. This patch fixes the problem by introducing metadata locking for stored procedures and functions. This is similar to what is done in Bug#25144 for views. Procedures and functions now are locked using metadata locks until the transaction is either committed or rolled back. This prevents other statements from modifying the procedure/function while it is being executed. This provides commit ordering - guaranteeing serializability across multiple transactions and thus fixes the reported binlog problem. Note that we do not take locks for top-level CALLs. This means that procedures called directly are not protected from changes by simultaneous DDL operations so they are executed at the state they had at the time of the CALL. By not taking locks for top-level CALLs, we still allow transactions to be started inside procedures. This patch also changes stored procedure cache invalidation. Upon a change of cache version, we no longer invalidate the entire cache, but only those routines which we use, only when a statement is executed that uses them. This patch also changes the logic of prepared statement validation. A stored procedure used by a prepared statement is now validated only once a metadata lock has been acquired. A version mismatch causes a flush of the obsolete routine from the cache and statement reprepare. Incompatible changes: 1) ER_LOCK_DEADLOCK is reported for a transaction trying to access a procedure/function that is locked by a DDL operation in another connection. 2) Procedure/function DDL operations are now prohibited in LOCK TABLES mode as exclusive locks must be taken all at once and LOCK TABLES provides no way to specifiy procedures/functions to be locked. Test cases have been added to sp-lock.test and rpl_sp.test. Work on this bug has very much been a team effort and this patch includes and is based on contributions from Davi Arnaut, Dmitry Lenev, Magne Mæhre and Konstantin Osipov. mysql-test/r/ps_ddl.result: Update results (Bug#30977). mysql-test/r/ps_ddl1.result: Update results (Bug#30977). mysql-test/r/sp-error.result: Update results (Bug#30977). mysql-test/r/sp-lock.result: Update results (Bug#30977). mysql-test/suite/rpl/r/rpl_sp.result: Update results (Bug#30977). mysql-test/suite/rpl/t/rpl_sp.test: Add a test case for Bug#30977. mysql-test/t/ps_ddl.test: Update comments. We no longer re-prepare a prepared statement when a stored procedure used in top-level CALL is changed. mysql-test/t/ps_ddl1.test: Modifying stored procedure p1 no longer invalidates prepared statement "call p1" -- we can re-use the prepared statement without invalidation. mysql-test/t/sp-error.test: Use a constant for an error value. mysql-test/t/sp-lock.test: Add test coverage for Bug#30977. sql/lock.cc: Implement lock_routine_name() - a way to acquire an exclusive metadata lock (ex- name-lock) on stored procedure/function. sql/sp.cc: Change semantics of sp_cache_routine() -- now it has an option to make sure that the routine that is cached is up to date (has the latest sp cache version). Add sp_cache_invalidate() to sp_drop_routine(), where it was missing (a bug!). Acquire metadata locks for SP DDL (ALTER/CREATE/DROP). This is the core of the fix for Bug#30977. Since caching and cache invalidation scheme was changed, make sure we don't invalidate the SP cache in the middle of a stored routine execution. At the same time, make sure we don't access stale data due to lack of invalidation. For that, change ALTER FUNCTION/PROCEDURE to not use the cache, and SHOW PROCEDURE CODE/SHOW CREATE PROCEDURE/FUNCTION to always read an up to date version of the routine from the cache. sql/sp.h: Add a helper wrapper around sp_cache_routine(). sql/sp_cache.cc: Implement new sp_cache_version() and sp_cache_flush_obsolete(). Now we flush stale routines individually, rather than all at once. sql/sp_cache.h: Update signatures of sp_cache_version() and sp_cache_flush_obsolete(). sql/sp_head.cc: Add a default initialization of sp_head::m_sp_cache_version. Remove a redundant sp_head::create(). sql/sp_head.h: Add m_sp_cache_version to sp_head class - we now keep track of every routine in the stored procedure cache, rather than of the entire cache. sql/sql_base.cc: Implement prelocking for stored routines. Validate stored routines after they were locked. Flush obsolete routines upon next access, one by one, not all at once (Bug#41804). Style fixes. sql/sql_class.h: Rename a Open_table_context method. sql/sql_parse.cc: Make sure stored procedures DDL commits the active transaction (issues an implicit commit before and after). Remove sp_head::create(), a pure redundancy. Move the semantical check during alter routine inside sp_update_routine() code in order to: - avoid using SP cache during update, it may be obsolete. - speed up and simplify the update procedure. Remove sp_cache_flush_obsolete() calls, we no longer flush the entire cache, ever, stale routines are flushed before next use, one at a time. sql/sql_prepare.cc: Move routine metadata validation to open_and_process_routine(). Fix Bug#49972 (don't swap flags at reprepare). Reset Sroutine_hash_entries in reinit_stmt_before_use(). Remove SP cache invalidation, it's now done by open_tables(). sql/sql_show.cc: Fix a warning: remove an unused label. sql/sql_table.cc: Reset mdl_request.ticket for tickets acquired for routines inlined through a view, in CHECK TABLE statement, to satisfy an MDL assert. sql/sql_update.cc: Move the cleanup of "translation items" to close_tables_for_reopen(), since it's needed in all cases when we back off, not just the back-off in multi-update. This fixes a bug when the server would crash on attempt to back off when opening tables for a statement that uses information_schema tables.
2009-12-29 13:19:05 +01:00
8
drop view v1;
drop table t1,t2,t3;
# Test 7-d: dependent TABLE has changed
create table t1 (a int);
create trigger t1_ai after insert on t1 for each row
insert into t2 (a) values (new.a);
create table t2 (a int);
prepare stmt from "insert into t1 (a) values (?)";
set @var=1;
execute stmt using @var;
alter table t2 add column comment varchar(255);
set @var=2;
# Since the dependent table is tracked in the prelocked
# list of the prepared statement, invalidation happens
# and the statement is re-prepared. This is an unnecessary
# side effect, since the statement that *is* dependent
# on t2 definition is inside the trigger, and it is currently
# not reprepared (see the previous test case).
execute stmt using @var;
call p_verify_reprepare_count(1);
SUCCESS
select * from t1;
a
1
2
select * from t2;
a comment
1 NULL
2 NULL
drop table t1,t2;
# Test 7-e: dependent TABLE TRIGGER has changed
create table t1 (a int);
create trigger t1_ai after insert on t1 for each row
insert into t2 (a) values (new.a);
create table t2 (a int unique);
create trigger t2_ai after insert on t2 for each row
insert into t3 (a) values (new.a);
create table t3 (a int unique);
create table t4 (a int unique);
insert into t1 (a) values (1);
select * from t1 join t2 on (t1.a=t2.a) join t3 on (t2.a=t3.a);
a a a
1 1 1
drop trigger t2_ai;
create trigger t2_ai after insert on t2 for each row
insert into t4 (a) values (new.a);
insert into t1 (a) values (2);
select * from t1 join t2 on (t1.a=t2.a) join t4 on (t2.a=t4.a);
a a a
2 2 2
prepare stmt from "insert into t1 (a) values (?)";
set @var=3;
execute stmt using @var;
select * from t1 join t2 on (t1.a=t2.a) join t4 on (t2.a=t4.a);
a a a
2 2 2
3 3 3
drop trigger t2_ai;
create trigger t2_ai after insert on t2 for each row
insert into t3 (a) values (new.a);
set @var=4;
execute stmt using @var;
call p_verify_reprepare_count(1);
SUCCESS
select * from t1 join t2 on (t1.a=t2.a) join t3 on (t2.a=t3.a);
a a a
1 1 1
4 4 4
select * from t1 join t2 on (t1.a=t2.a) join t4 on (t2.a=t4.a);
a a a
2 2 2
3 3 3
drop table t1, t2, t3, t4;
deallocate prepare stmt;
=====================================================================
Part 8: TABLE -> TEMPORARY TABLE transitions
=====================================================================
# Test 8-a: base table used recreated as temporary table
create table t1 (a int);
prepare stmt from "select * from t1";
execute stmt;
a
drop table t1;
create temporary table t1 (a int);
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
drop table t1;
deallocate prepare stmt;
# Test 8-b: temporary table has precedence over base table with same name
create table t1 (a int);
prepare stmt from 'select count(*) from t1';
execute stmt;
count(*)
0
call p_verify_reprepare_count(0);
SUCCESS
execute stmt;
count(*)
0
call p_verify_reprepare_count(0);
SUCCESS
create temporary table t1 AS SELECT 1;
execute stmt;
count(*)
1
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
count(*)
1
call p_verify_reprepare_count(0);
SUCCESS
deallocate prepare stmt;
drop temporary table t1;
drop table t1;
=====================================================================
Part 9: TABLE -> VIEW transitions
=====================================================================
create table t1 (a int);
prepare stmt from "select * from t1";
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
drop table t1;
create table t2 (a int);
create view t1 as select * from t2;
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
drop view t1;
drop table t2;
deallocate prepare stmt;
=====================================================================
Part 10: TEMPORARY TABLE -> NOTHING transitions
=====================================================================
create temporary table t1 (a int);
prepare stmt from "select * from t1";
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
drop temporary table t1;
execute stmt;
ERROR 42S02: Table 'test.t1' doesn't exist
call p_verify_reprepare_count(0);
SUCCESS
deallocate prepare stmt;
=====================================================================
Part 11: TEMPORARY TABLE -> TABLE transitions
=====================================================================
# Test 11-a: temporary table replaced by base table
create table t1 (a int);
insert into t1 (a) value (1);
create temporary table t1 (a int);
prepare stmt from "select * from t1";
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
drop temporary table t1;
execute stmt;
a
1
call p_verify_reprepare_count(1);
SUCCESS
select * from t1;
a
1
drop table t1;
deallocate prepare stmt;
# Test 11-b: temporary table has precedence over base table with same name
# temporary table disappears
create table t1 (a int);
create temporary table t1 as select 1 as a;
prepare stmt from "select count(*) from t1";
execute stmt;
count(*)
1
call p_verify_reprepare_count(0);
SUCCESS
execute stmt;
count(*)
1
call p_verify_reprepare_count(0);
SUCCESS
drop temporary table t1;
execute stmt;
count(*)
0
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
count(*)
0
call p_verify_reprepare_count(0);
SUCCESS
deallocate prepare stmt;
drop table t1;
=====================================================================
Part 12: TEMPORARY TABLE -> TEMPORARY TABLE (DDL) transitions
=====================================================================
create temporary table t1 (a int);
prepare stmt from "select a from t1";
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
drop temporary table t1;
create temporary table t1 (a int, b int);
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
select * from t1;
a b
drop temporary table t1;
deallocate prepare stmt;
=====================================================================
Part 13: TEMPORARY TABLE -> VIEW transitions
=====================================================================
create temporary table t1 (a int);
create table t2 (a int);
prepare stmt from "select * from t1";
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
drop temporary table t1;
create view t1 as select * from t2;
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
drop view t1;
drop table t2;
deallocate prepare stmt;
=====================================================================
Part 14: VIEW -> NOTHING transitions
=====================================================================
create table t2 (a int);
create view t1 as select * from t2;
prepare stmt from "select * from t1";
execute stmt;
a
drop view t1;
execute stmt;
ERROR 42S02: Table 'test.t1' doesn't exist
call p_verify_reprepare_count(0);
SUCCESS
execute stmt;
ERROR 42S02: Table 'test.t1' doesn't exist
call p_verify_reprepare_count(0);
SUCCESS
drop table t2;
deallocate prepare stmt;
=====================================================================
Part 15: VIEW -> TABLE transitions
=====================================================================
create table t2 (a int);
create view t1 as select * from t2;
prepare stmt from "select * from t1";
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
drop view t1;
create table t1 (a int);
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
drop table t2;
drop table t1;
deallocate prepare stmt;
=====================================================================
Part 16: VIEW -> TEMPORARY TABLE transitions
=====================================================================
2009-12-10 13:37:18 +01:00
#
# Test 1: Merged view
#
create table t2 (a int);
insert into t2 (a) values (1);
create view t1 as select * from t2;
prepare stmt from "select * from t1";
execute stmt;
a
1
call p_verify_reprepare_count(0);
SUCCESS
create temporary table t1 (a int);
execute stmt;
a
2009-12-10 13:37:18 +01:00
1
call p_verify_reprepare_count(0);
SUCCESS
drop view t1;
execute stmt;
2009-12-10 13:37:18 +01:00
ERROR 42S02: Table 'test.t1' doesn't exist
call p_verify_reprepare_count(0);
SUCCESS
drop table t2;
drop temporary table t1;
deallocate prepare stmt;
#
# Test 2: Materialized view
#
create table t2 (a int);
insert into t2 (a) values (1);
create algorithm = temptable view t1 as select * from t2;
prepare stmt from "select * from t1";
execute stmt;
a
2009-12-10 13:37:18 +01:00
1
call p_verify_reprepare_count(0);
SUCCESS
create temporary table t1 (a int);
execute stmt;
a
1
call p_verify_reprepare_count(0);
SUCCESS
drop view t1;
execute stmt;
ERROR 42S02: Table 'test.t1' doesn't exist
call p_verify_reprepare_count(0);
SUCCESS
drop table t2;
2009-12-10 13:37:18 +01:00
drop temporary table t1;
deallocate prepare stmt;
#
# Test 3: View referencing an Information schema table
#
create view t1 as select table_name from information_schema.views;
prepare stmt from "select * from t1";
execute stmt;
table_name
t1
call p_verify_reprepare_count(0);
SUCCESS
create temporary table t1 (a int);
execute stmt;
table_name
t1
call p_verify_reprepare_count(0);
SUCCESS
drop view t1;
execute stmt;
table_name
call p_verify_reprepare_count(0);
SUCCESS
drop temporary table t1;
deallocate prepare stmt;
=====================================================================
Part 17: VIEW -> VIEW (DDL) transitions
=====================================================================
create table t2 (a int);
insert into t2 values (10), (20), (30);
create view t1 as select a, 2*a as b, 3*a as c from t2;
select * from t1;
a b c
10 20 30
20 40 60
30 60 90
prepare stmt from "select * from t1";
execute stmt;
a b c
10 20 30
20 40 60
30 60 90
drop view t1;
create view t1 as select a, 2*a as b, 5*a as c from t2;
select * from t1;
a b c
2008-02-07 20:00:48 +01:00
10 20 50
20 40 100
30 60 150
# Currently a different result from conventional statements.
# A view is inlined once at prepare, later on view DDL
# does not affect prepared statement and it is not re-prepared.
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
# This is reported in Bug#36002 Prepared statements: if a view
# used in a statement is replaced, bad data
execute stmt;
a b c
10 20 30
20 40 60
30 60 90
call p_verify_reprepare_count(0);
SUCCESS
flush table t2;
execute stmt;
a b c
2008-02-07 20:00:48 +01:00
10 20 50
20 40 100
30 60 150
call p_verify_reprepare_count(1);
SUCCESS
drop table t2;
drop view t1;
deallocate prepare stmt;
=====================================================================
Part 18: VIEW -> VIEW (VIEW dependencies) transitions
=====================================================================
# Part 18a: dependent function has changed
create table t1 (a int);
insert into t1 (a) values (1), (2), (3);
create function f1() returns int return (select max(a) from t1);
create view v1 as select f1();
prepare stmt from "select * from v1";
execute stmt;
f1()
3
execute stmt;
f1()
3
call p_verify_reprepare_count(0);
SUCCESS
drop function f1;
create function f1() returns int return 2;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
# 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;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
f1()
2
execute stmt;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
f1()
2
call p_verify_reprepare_count(1);
SUCCESS
# Part 18b: dependent procedure has changed (referred to via a function)
create table t2 (a int);
insert into t2 (a) values (4), (5), (6);
drop function f1;
create function f1() returns int
begin
declare x int;
call p1(x);
return x;
end|
create procedure p1(out x int) select max(a) from t1 into x;
prepare stmt from "select * from v1";
execute stmt;
f1()
3
execute stmt;
f1()
3
call p_verify_reprepare_count(0);
SUCCESS
drop procedure p1;
create procedure p1(out x int) select max(a) from t2 into x;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
# 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;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
f1()
6
call p_verify_reprepare_count(1);
SUCCESS
flush table t1;
execute stmt;
f1()
6
Backport of: ------------------------------------------------------------ revno: 2630.9.3 committer: Dmitry Lenev <dlenev@mysql.com> branch nick: mysql-6.0-3726-w3 timestamp: Wed 2008-06-11 08:33:36 +0400 message: WL#3726 "DDL locking for all metadata objects". After review fixes in progress. Changed close_cached_tables() not to flush all unused TABLE instances when flushing individual table. Renamed expel_table_from_cache() to tdc_remove_table() and added enum parameter to be able more explicitly specify type of removal, rewrote its code to be more efficient. ****** Backport of: ------------------------------------------------------------ revno: 2630.9.4 committer: Dmitry Lenev <dlenev@mysql.com> branch nick: mysql-6.0-3726-w3 timestamp: Wed 2008-06-11 15:53:53 +0400 message: WL#3726 "DDL locking for all metadata objects". After-review fixes in progress. Minor changes in order to improve code readability and simplify debugging. mysql-test/r/ps_ddl.result: Restore the original (correct) behaviour, now that the patch that fixes the regression introduced by the original patch for WL#3726 is fixed. mysql-test/t/ps_ddl.test: Restore the original (correct) behaviour, now that the patch that fixes the regression introduced by the original patch for WL#3726 is fixed sql/mysql_priv.h: Renamed expel_table_from_cache() to tdc_remove_table() and added enum parameter to be able more explicitly specify type of removal. sql/sql_base.cc: Changed close_cached_tables() not to flush all unused TABLE instances when flushing individual table. Renamed expel_table_from_cache() to tdc_remove_table() and added enum parameter to be able more explicitly specify type of removal, rewrote its code to be more efficient. As result removed relink_unused() function which is no longer used. ****** Improved code in close_cached_tables() according to reviewer's comments. sql/sql_delete.cc: Renamed expel_table_from_cache() to tdc_remove_table() and added enum parameter to be able more explicitly specify type of removal. sql/sql_rename.cc: Renamed expel_table_from_cache() to tdc_remove_table() and added enum parameter to be able more explicitly specify type of removal. sql/sql_show.cc: Moved acquisition of high-prio shared metadata lock in which happens in fill_schema_table_from_frm() to separate function. sql/sql_table.cc: Renamed expel_table_from_cache() to tdc_remove_table() and added enum parameter to be able more explicitly specify type of removal. sql/sql_trigger.cc: Renamed expel_table_from_cache() to tdc_remove_table() and added enum parameter to be able more explicitly specify type of removal.
2009-12-01 20:13:01 +01:00
call p_verify_reprepare_count(0);
SUCCESS
execute stmt;
f1()
6
# Test 18-c: dependent VIEW has changed
drop view v1;
create view v2 as select a from t1;
create view v1 as select * from v2;
prepare stmt from "select * from v1";
execute stmt;
a
1
2
3
execute stmt;
a
1
2
3
call p_verify_reprepare_count(0);
SUCCESS
drop view v2;
create view v2 as select a from t2;
execute stmt;
a
1
2
3
execute stmt;
a
1
2
3
call p_verify_reprepare_count(0);
SUCCESS
flush table t1;
execute stmt;
a
4
5
6
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
4
5
6
# Test 18-d: dependent TABLE has changed
drop view v2;
create table v2 as select * from t1;
execute stmt;
a
1
2
3
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
1
2
3
call p_verify_reprepare_count(0);
SUCCESS
drop table v2;
create table v2 (a int unique) as select * from t2;
execute stmt;
a
4
5
6
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
4
5
6
call p_verify_reprepare_count(0);
SUCCESS
# Test 18-e: dependent TABLE trigger has changed
prepare stmt from "insert into v1 (a) values (?)";
set @var= 7;
execute stmt using @var;
call p_verify_reprepare_count(0);
SUCCESS
create trigger v2_bi before insert on v2 for each row set @message="v2_bi";
set @var=8;
execute stmt using @var;
call p_verify_reprepare_count(1);
SUCCESS
select @message;
@message
v2_bi
drop trigger v2_bi;
set @message=null;
set @var=9;
execute stmt using @var;
call p_verify_reprepare_count(1);
SUCCESS
select @message;
@message
NULL
create trigger v2_bi after insert on v2 for each row set @message="v2_ai";
set @var= 10;
execute stmt using @var;
call p_verify_reprepare_count(1);
SUCCESS
select @message;
@message
v2_ai
select * from v1;
a
4
5
6
7
8
9
10
# Cleanup
drop table if exists t1, t2, v1, v2;
drop view if exists v1, v2;
drop function f1;
drop procedure p1;
deallocate prepare stmt;
=====================================================================
Part 19: Special tables (INFORMATION_SCHEMA)
=====================================================================
prepare stmt from
"select ROUTINE_SCHEMA, ROUTINE_NAME, ROUTINE_TYPE
from INFORMATION_SCHEMA.ROUTINES where
routine_name='p1'";
create procedure p1() select "hi there";
execute stmt;
ROUTINE_SCHEMA ROUTINE_NAME ROUTINE_TYPE
test p1 PROCEDURE
execute stmt;
ROUTINE_SCHEMA ROUTINE_NAME ROUTINE_TYPE
test p1 PROCEDURE
drop procedure p1;
create procedure p1() select "hi there, again";
execute stmt;
ROUTINE_SCHEMA ROUTINE_NAME ROUTINE_TYPE
test p1 PROCEDURE
execute stmt;
ROUTINE_SCHEMA ROUTINE_NAME ROUTINE_TYPE
test p1 PROCEDURE
call p_verify_reprepare_count(0);
SUCCESS
drop procedure p1;
deallocate prepare stmt;
=====================================================================
Part 20: Special tables (log tables)
=====================================================================
prepare stmt from
"select * from mysql.general_log where argument='IMPOSSIBLE QUERY STRING'";
execute stmt;
execute stmt;
execute stmt;
execute stmt;
call p_verify_reprepare_count(0);
SUCCESS
deallocate prepare stmt;
=====================================================================
Part 21: Special tables (system tables)
=====================================================================
prepare stmt from
"select type, db, name from mysql.proc where name='p1'";
create procedure p1() select "hi there";
execute stmt;
type db name
PROCEDURE test p1
execute stmt;
type db name
PROCEDURE test p1
drop procedure p1;
create procedure p1() select "hi there, again";
execute stmt;
type db name
PROCEDURE test p1
execute stmt;
type db name
PROCEDURE test p1
call p_verify_reprepare_count(0);
SUCCESS
drop procedure p1;
deallocate prepare stmt;
=====================================================================
Part 22: Special tables (views temp tables)
=====================================================================
create table t1 (a int);
create algorithm=temptable view v1 as select a*a as a2 from t1;
# Using a temporary table internally should not confuse the prepared
# statement code, and should not raise ER_PS_INVALIDATED errors
show create view v1;
View Create View character_set_client collation_connection
v1 CREATE ALGORITHM=TEMPTABLE DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select (`t1`.`a` * `t1`.`a`) AS `a2` from `t1` latin1 latin1_swedish_ci
prepare stmt from "select * from v1";
insert into t1 values (1), (2), (3);
execute stmt;
a2
1
4
9
execute stmt;
a2
1
4
9
insert into t1 values (4), (5), (6);
execute stmt;
a2
1
4
9
16
25
36
execute stmt;
a2
1
4
9
16
25
36
call p_verify_reprepare_count(0);
SUCCESS
drop table t1;
drop view v1;
=====================================================================
Part 23: Special statements
=====================================================================
# SQLCOM_ALTER_TABLE:
create table t1 (a int);
prepare stmt from "alter table t1 add column b int";
execute stmt;
drop table t1;
create table t1 (a1 int, a2 int);
# t1 has changed, and it's does not lead to reprepare
execute stmt;
alter table t1 drop column b;
execute stmt;
alter table t1 drop column b;
execute stmt;
call p_verify_reprepare_count(0);
SUCCESS
drop table t1;
# SQLCOM_REPAIR:
create table t1 (a int);
insert into t1 values (1), (2), (3);
prepare stmt from "repair table t1";
execute stmt;
Table Op Msg_type Msg_text
test.t1 repair status OK
execute stmt;
Table Op Msg_type Msg_text
test.t1 repair status OK
drop table t1;
create table t1 (a1 int, a2 int);
insert into t1 values (1, 10), (2, 20), (3, 30);
# t1 has changed, and it's does not lead to reprepare
execute stmt;
Table Op Msg_type Msg_text
test.t1 repair status OK
alter table t1 add column b varchar(50) default NULL;
execute stmt;
Table Op Msg_type Msg_text
test.t1 repair status OK
call p_verify_reprepare_count(0);
SUCCESS
alter table t1 drop column b;
execute stmt;
Table Op Msg_type Msg_text
test.t1 repair status OK
call p_verify_reprepare_count(0);
SUCCESS
# SQLCOM_ANALYZE:
prepare stmt from "analyze table t1";
execute stmt;
Table Op Msg_type Msg_text
test.t1 analyze status OK
drop table t1;
create table t1 (a1 int, a2 int);
insert into t1 values (1, 10), (2, 20), (3, 30);
# t1 has changed, and it's not a problem
execute stmt;
Table Op Msg_type Msg_text
test.t1 analyze status OK
alter table t1 add column b varchar(50) default NULL;
execute stmt;
Table Op Msg_type Msg_text
test.t1 analyze status OK
alter table t1 drop column b;
execute stmt;
Table Op Msg_type Msg_text
test.t1 analyze status OK
call p_verify_reprepare_count(0);
SUCCESS
# SQLCOM_OPTIMIZE:
prepare stmt from "optimize table t1";
execute stmt;
Table Op Msg_type Msg_text
test.t1 optimize status Table is already up to date
drop table t1;
create table t1 (a1 int, a2 int);
insert into t1 values (1, 10), (2, 20), (3, 30);
# t1 has changed, and it's not a problem
execute stmt;
Table Op Msg_type Msg_text
test.t1 optimize status OK
alter table t1 add column b varchar(50) default NULL;
execute stmt;
Table Op Msg_type Msg_text
test.t1 optimize status OK
alter table t1 drop column b;
execute stmt;
Table Op Msg_type Msg_text
test.t1 optimize status OK
call p_verify_reprepare_count(0);
SUCCESS
drop table t1;
# SQLCOM_SHOW_CREATE_PROC:
prepare stmt from "show create procedure p1";
execute stmt;
ERROR 42000: PROCEDURE p1 does not exist
execute stmt;
ERROR 42000: PROCEDURE p1 does not exist
create procedure p1() begin end;
execute stmt;
execute stmt;
drop procedure p1;
create procedure p1(x int, y int) begin end;
execute stmt;
execute stmt;
drop procedure p1;
execute stmt;
ERROR 42000: PROCEDURE p1 does not exist
execute stmt;
ERROR 42000: PROCEDURE p1 does not exist
call p_verify_reprepare_count(0);
SUCCESS
# SQLCOM_SHOW_CREATE_FUNC:
prepare stmt from "show create function f1";
execute stmt;
ERROR 42000: FUNCTION f1 does not exist
execute stmt;
ERROR 42000: FUNCTION f1 does not exist
create function f1() returns int return 0;
execute stmt;
execute stmt;
drop function f1;
create function f1(x int, y int) returns int return x+y;
execute stmt;
execute stmt;
drop function f1;
execute stmt;
ERROR 42000: FUNCTION f1 does not exist
execute stmt;
ERROR 42000: FUNCTION f1 does not exist
call p_verify_reprepare_count(0);
SUCCESS
# SQLCOM_SHOW_CREATE_TRIGGER:
create table t1 (a int);
prepare stmt from "show create trigger t1_bi";
execute stmt;
ERROR HY000: Trigger does not exist
execute stmt;
ERROR HY000: Trigger does not exist
create trigger t1_bi before insert on t1 for each row set @message= "t1_bi";
execute stmt;
execute stmt;
drop trigger t1_bi;
create trigger t1_bi before insert on t1 for each row set @message= "t1_bi (2)";
execute stmt;
execute stmt;
drop trigger t1_bi;
execute stmt;
ERROR HY000: Trigger does not exist
execute stmt;
ERROR HY000: Trigger does not exist
call p_verify_reprepare_count(0);
SUCCESS
drop table t1;
deallocate prepare stmt;
=====================================================================
Part 24: Testing the strength of TABLE_SHARE version
=====================================================================
# Test 24-a: number of columns
create table t1 (a int);
prepare stmt from "select a from t1";
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
alter table t1 add column b varchar(50) default NULL;
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
# Test 24-b: column name
alter table t1 change b c int;
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
# Test 24-c: column type
alter table t1 change a a varchar(10);
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
# Test 24-d: column type length
alter table t1 change a a varchar(20);
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
# Test 24-e: column NULL property
alter table t1 change a a varchar(20) NOT NULL;
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
# Test 24-f: column DEFAULT
alter table t1 change c c int DEFAULT 20;
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
# Test 24-g: number of keys
create unique index t1_a_idx on t1 (a);
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
# Test 24-h: changing index uniqueness
drop index t1_a_idx on t1;
create index t1_a_idx on t1 (a);
execute stmt;
a
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a
call p_verify_reprepare_count(0);
SUCCESS
# Cleanup
drop table t1;
deallocate prepare stmt;
=====================================================================
Testing reported bugs
=====================================================================
#
# Bug#27420 A combination of PS and view operations cause
# error + assertion on shutdown
#
drop table if exists t_27420_100;
drop table if exists t_27420_101;
drop view if exists v_27420;
create table t_27420_100(a int);
insert into t_27420_100 values (1), (2);
create table t_27420_101(a int);
insert into t_27420_101 values (1), (2);
create view v_27420 as select t_27420_100.a X, t_27420_101.a Y
from t_27420_100, t_27420_101
where t_27420_100.a=t_27420_101.a;
prepare stmt from "select * from v_27420";
execute stmt;
X Y
1 1
2 2
call p_verify_reprepare_count(0);
SUCCESS
drop view v_27420;
create table v_27420(X int, Y int);
execute stmt;
X Y
call p_verify_reprepare_count(1);
SUCCESS
drop table v_27420;
create table v_27420 (a int, b int, filler char(200));
execute stmt;
a b filler
call p_verify_reprepare_count(1);
SUCCESS
drop table t_27420_100;
drop table t_27420_101;
drop table v_27420;
deallocate prepare stmt;
#
# Bug#27430 Crash in subquery code when in PS and table DDL changed
# after PREPARE
#
drop table if exists t_27430_1;
drop table if exists t_27430_2;
create table t_27430_1 (a int not null, oref int not null, key(a));
insert into t_27430_1 values
(1, 1),
(1, 1234),
(2, 3),
(2, 1234),
(3, 1234);
create table t_27430_2 (a int not null, oref int not null);
insert into t_27430_2 values
(1, 1),
(2, 2),
(1234, 3),
(1234, 4);
prepare stmt from
"select oref, a, a in (select a from t_27430_1 where oref=t_27430_2.oref) Z from t_27430_2";
execute stmt;
oref a Z
1 1 1
2 2 0
3 1234 0
4 1234 0
call p_verify_reprepare_count(0);
SUCCESS
drop table t_27430_1, t_27430_2;
create table t_27430_1 (a int, oref int, key(a));
insert into t_27430_1 values
(1, 1),
(1, NULL),
(2, 3),
(2, NULL),
(3, NULL);
create table t_27430_2 (a int, oref int);
insert into t_27430_2 values
(1, 1),
(2,2),
(NULL, 3),
(NULL, 4);
execute stmt;
oref a Z
1 1 1
2 2 0
3 NULL NULL
4 NULL 0
call p_verify_reprepare_count(1);
SUCCESS
drop table t_27430_1;
drop table t_27430_2;
deallocate prepare stmt;
#
# Bug#27690 Re-execution of prepared statement after table
# was replaced with a view crashes
#
drop table if exists t_27690_1;
drop view if exists v_27690_1;
drop table if exists v_27690_2;
create table t_27690_1 (a int, b int);
insert into t_27690_1 values (1,1),(2,2);
create table v_27690_1 as select * from t_27690_1;
create table v_27690_2 as select * from t_27690_1;
prepare stmt from "select * from v_27690_1, v_27690_2";
execute stmt;
a b a b
1 1 1 1
2 2 1 1
1 1 2 2
2 2 2 2
execute stmt;
a b a b
1 1 1 1
2 2 1 1
1 1 2 2
2 2 2 2
drop table v_27690_1;
execute stmt;
ERROR 42S02: Table 'test.v_27690_1' doesn't exist
execute stmt;
ERROR 42S02: Table 'test.v_27690_1' doesn't exist
call p_verify_reprepare_count(0);
SUCCESS
create view v_27690_1 as select A.a, A.b from t_27690_1 A, t_27690_1 B;
execute stmt;
a b a b
1 1 1 1
2 2 1 1
1 1 1 1
2 2 1 1
1 1 2 2
2 2 2 2
1 1 2 2
2 2 2 2
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
a b a b
1 1 1 1
2 2 1 1
1 1 1 1
2 2 1 1
1 1 2 2
2 2 2 2
1 1 2 2
2 2 2 2
call p_verify_reprepare_count(0);
SUCCESS
drop table t_27690_1;
drop view v_27690_1;
drop table v_27690_2;
deallocate prepare stmt;
#=====================================================================
#
# Bug#21294 Executing a prepared statement that executes
# a stored function which was recreat
#
create function f1() returns int return 10;
prepare stmt from "select f1()";
execute stmt;
f1()
10
drop function f1;
create function f1() returns int return 10;
execute stmt;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
f1()
10
drop function f1;
create function f1() returns int return 20;
execute stmt;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
f1()
20
call p_verify_reprepare_count(2);
SUCCESS
drop function f1;
deallocate prepare stmt;
#
# Bug#12093 SP not found on second PS execution if another thread drops
# other SP in between
#
drop table if exists t_12093;
drop function if exists f_12093;
drop function if exists f_12093_unrelated;
drop procedure if exists p_12093;
drop view if exists v_12093_unrelated;
create table t_12093 (a int);
create function f_12093() returns int return (select count(*) from t_12093);
create procedure p_12093(a int) select * from t_12093;
create function f_12093_unrelated() returns int return 2;
create procedure p_12093_unrelated() begin end;
create view v_12093_unrelated as select * from t_12093;
prepare stmt_sf from 'select f_12093();';
prepare stmt_sp from 'call p_12093(f_12093())';
execute stmt_sf;
f_12093()
0
execute stmt_sp;
a
drop function f_12093_unrelated;
# XXX: used to be a bug
execute stmt_sf;
f_12093()
0
# XXX: used to be a bug
execute stmt_sp;
a
# XXX: used to be a bug
execute stmt_sf;
f_12093()
0
# XXX: used to be a bug
execute stmt_sp;
a
prepare stmt_sf from 'select f_12093();';
prepare stmt_sp from 'call p_12093(f_12093())';
execute stmt_sf;
f_12093()
0
execute stmt_sp;
a
drop procedure p_12093_unrelated;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
# XXX: used to be a bug
execute stmt_sf;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
f_12093()
0
# XXX: used to be a bug
execute stmt_sp;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
a
# XXX: used to be a bug
execute stmt_sf;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
f_12093()
0
# XXX: used to be a bug
execute stmt_sp;
A fix for Bug#12093 "SP not found on second PS execution if another thread drops other SP in between" and Bug#21294 "executing a prepared statement that executes a stored function which was recreat" Stored functions are resolved at prepared statement prepare only. If someone flushes the stored functions cache between prepare and execute, execution fails. The fix is to detect the situation of the cache flush and automatically reprepare the prepared statement after it. mysql-test/r/ps_ddl.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/ps_ddl1.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/r/sp-error.result: Update results (Bug#12093 and Bug#21294, the test cases are already in the source tree). mysql-test/t/ps_ddl.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/ps_ddl1.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). mysql-test/t/sp-error.test: Modify the test to not expect an error where there is no error any more (Bug#12093, Bug#21294). sql/sp_cache.cc: Implement sp_cache_version() -- returns the current version of a stored routines cache. sql/sp_cache.h: Declare sp_cache_version(). sql/sql_prepare.cc: Keep track of stored functions cache version, and invalidate the statement if it changed between prepared statement prepare and execute (and the statement actually uses stored routines).
2008-07-03 21:41:22 +02:00
a
prepare stmt_sf from 'select f_12093();';
prepare stmt_sp from 'call p_12093(f_12093())';
execute stmt_sf;
f_12093()
0
execute stmt_sp;
a
drop view v_12093_unrelated;
# XXX: used to be a bug
execute stmt_sf;
f_12093()
0
# XXX: used to be a bug
execute stmt_sp;
a
# XXX: used to be a bug
execute stmt_sf;
f_12093()
0
# XXX: used to be a bug
execute stmt_sp;
a
call p_verify_reprepare_count(6);
SUCCESS
drop table t_12093;
drop function f_12093;
drop procedure p_12093;
deallocate prepare stmt_sf;
deallocate prepare stmt_sp;
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
=====================================================================
Ensure that metadata validation is performed for every type of
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
SQL statement where it is needed.
=====================================================================
#
# SQLCOM_SELECT
#
drop table if exists t1;
create table t1 (a int);
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
prepare stmt from "select 1 as res from dual where (1) in (select * from t1)";
drop table t1;
create table t1 (x int);
execute stmt;
res
drop table t1;
deallocate prepare stmt;
call p_verify_reprepare_count(1);
SUCCESS
#
# SQLCOM_CREATE_TABLE
#
drop table if exists t1;
drop table if exists t2;
create table t1 (a int);
prepare stmt from 'create table t2 as select * from t1';
execute stmt;
drop table t2;
execute stmt;
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
SUCCESS
execute stmt;
ERROR 42S01: Table 't2' already exists
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
ERROR 42S01: Table 't2' already exists
call p_verify_reprepare_count(0);
SUCCESS
drop table t2;
create temporary table t2 (a int);
execute stmt;
ERROR 42S01: Table 't2' already exists
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
ERROR 42S01: Table 't2' already exists
call p_verify_reprepare_count(0);
SUCCESS
drop temporary table t2;
execute stmt;
Initial import of WL#3726 "DDL locking for all metadata objects". Backport of: ------------------------------------------------------------ revno: 2630.4.1 committer: Dmitry Lenev <dlenev@mysql.com> branch nick: mysql-6.0-3726-w timestamp: Fri 2008-05-23 17:54:03 +0400 message: WL#3726 "DDL locking for all metadata objects". After review fixes in progress. ------------------------------------------------------------ This is the first patch in series. It transforms the metadata locking subsystem to use a dedicated module (mdl.h,cc). No significant changes in the locking protocol. The import passes the test suite with the exception of deprecated/removed 6.0 features, and MERGE tables. The latter are subject to a fix by WL#4144. Unfortunately, the original changeset comments got lost in a merge, thus this import has its own (largely insufficient) comments. This patch fixes Bug#25144 "replication / binlog with view breaks". Warning: this patch introduces an incompatible change: Under LOCK TABLES, it's no longer possible to FLUSH a table that was not locked for WRITE. Under LOCK TABLES, it's no longer possible to DROP a table or VIEW that was not locked for WRITE. ****** Backport of: ------------------------------------------------------------ revno: 2630.4.2 committer: Dmitry Lenev <dlenev@mysql.com> branch nick: mysql-6.0-3726-w timestamp: Sat 2008-05-24 14:03:45 +0400 message: WL#3726 "DDL locking for all metadata objects". After review fixes in progress. ****** Backport of: ------------------------------------------------------------ revno: 2630.4.3 committer: Dmitry Lenev <dlenev@mysql.com> branch nick: mysql-6.0-3726-w timestamp: Sat 2008-05-24 14:08:51 +0400 message: WL#3726 "DDL locking for all metadata objects" Fixed failing Windows builds by adding mdl.cc to the lists of files needed to build server/libmysqld on Windows. ****** Backport of: ------------------------------------------------------------ revno: 2630.4.4 committer: Dmitry Lenev <dlenev@mysql.com> branch nick: mysql-6.0-3726-w timestamp: Sat 2008-05-24 21:57:58 +0400 message: WL#3726 "DDL locking for all metadata objects". Fix for assert failures in kill.test which occured when one tried to kill ALTER TABLE statement on merge table while it was waiting in wait_while_table_is_used() for other connections to close this table. These assert failures stemmed from the fact that cleanup code in this case assumed that temporary table representing new version of table was open with adding to THD::temporary_tables list while code which were opening this temporary table wasn't always fulfilling this. This patch changes code that opens new version of table to always do this linking in. It also streamlines cleanup process for cases when error occurs while we have new version of table open. ****** WL#3726 "DDL locking for all metadata objects" Add libmysqld/mdl.cc to .bzrignore. ****** Backport of: ------------------------------------------------------------ revno: 2630.4.6 committer: Dmitry Lenev <dlenev@mysql.com> branch nick: mysql-6.0-3726-w timestamp: Sun 2008-05-25 00:33:22 +0400 message: WL#3726 "DDL locking for all metadata objects". Addition to the fix of assert failures in kill.test caused by changes for this worklog. Make sure we close the new table only once. .bzrignore: Add libmysqld/mdl.cc libmysqld/CMakeLists.txt: Added mdl.cc to the list of files needed for building of libmysqld. libmysqld/Makefile.am: Added files implementing new meta-data locking subsystem to the server. mysql-test/include/handler.inc: Use separate connection for waiting while threads performing DDL operations conflicting with open HANDLER tables reach blocked state. This is required because now we check and close tables open by HANDLER statements in this connection conflicting with DDL in another each time open_tables() is called and thus select from I_S which is used for waiting will unblock DDL operations if issued from connection with open HANDLERs. mysql-test/r/create.result: Adjusted test case after change in implementation of CREATE TABLE ... SELECT. We no longer have special check in open_table() which catches the case when we select from the table created. Instead we rely on unique_table() call which happens after opening and locking all tables. mysql-test/r/flush.result: FLUSH TABLES WITH READ LOCK can no longer happen under LOCK TABLES. Updated test accordingly. mysql-test/r/flush_table.result: Under LOCK TABLES we no longer allow to do FLUSH TABLES for tables locked for read. Updated test accordingly. mysql-test/r/handler_innodb.result: Use separate connection for waiting while threads performing DDL operations conflicting with open HANDLER tables reach blocked state. This is required because now we check and close tables open by HANDLER statements in this connection conflicting with DDL in another each time open_tables() is called and thus select from I_S which is used for waiting will unblock DDL operations if issued from connection with open HANDLERs. mysql-test/r/handler_myisam.result: Use separate connection for waiting while threads performing DDL operations conflicting with open HANDLER tables reach blocked state. This is required because now we check and close tables open by HANDLER statements in this connection conflicting with DDL in another each time open_tables() is called and thus select from I_S which is used for waiting will unblock DDL operations if issued from connection with open HANDLERs. mysql-test/r/information_schema.result: Additional test for WL#3726 "DDL locking for all metadata objects". Check that we use high-priority metadata lock requests when filling I_S tables. Rearrange tests to match 6.0 better (fewer merge conflicts). mysql-test/r/kill.result: Added tests checking that DDL and DML statements waiting for metadata locks can be interrupted by KILL command. mysql-test/r/lock.result: One no longer is allowed to do DROP VIEW under LOCK TABLES even if this view is locked by LOCK TABLES. The problem is that in such situation write locks on view are not mutually exclusive so upgrading metadata lock which is required for dropping of view will lead to deadlock. mysql-test/r/partition_column_prune.result: Update results (same results in 6.0), WL#3726 mysql-test/r/partition_pruning.result: Update results (same results in 6.0), WL#3726 mysql-test/r/ps_ddl.result: We no longer invalidate prepared CREATE TABLE ... SELECT statement if target table changes. This is OK since it is not strictly necessary. The first change is wrong, is caused by FLUSH TABLE now flushing all unused tables. This is a regression that Dmitri fixed in 6.0 in a follow up patch. mysql-test/r/sp.result: Under LOCK TABLES we no longer allow accessing views which were not explicitly locked. To access view we need to obtain metadata lock on it and doing this under LOCK TABLES may lead to deadlocks. mysql-test/r/view.result: One no longer is allowed to do DROP VIEW under LOCK TABLES even if this view is locked by LOCK TABLES. The problem is that in such situation even "write locks" on view are not mutually exclusive so upgrading metadata lock which is required for dropping of view will lead to deadlock mysql-test/r/view_grant.result: ALTER VIEW implementation was changed to open a view only after checking that user which does alter has appropriate privileges on it. This means that in case when user's privileges are insufficient for this we won't check that new view definer is the same as original one or user performing alter has SUPER privilege. Adjusted test case accordingly. mysql-test/r/view_multi.result: Added test case for bug#25144 "replication / binlog with view breaks". mysql-test/suite/rpl/t/disabled.def: Disable test for deprecated features (they don't work with new MDL). mysql-test/t/create.test: Adjusted test case after change in implementation of CREATE TABLE ... SELECT. We no longer have special check in open_table() which catches the case when we select from the table created. Instead we rely on unique_table() call which happens after opening and locking all tables. mysql-test/t/disabled.def: Disable merge.test, subject of WL#4144 mysql-test/t/flush.test: FLUSH TABLES WITH READ LOCK can no longer happen under LOCK TABLES. Updated test accordingly. mysql-test/t/flush_table.test: Under LOCK TABLES we no longer allow to do FLUSH TABLES for tables locked for read. Updated test accordingly. mysql-test/t/information_schema.test: Additional test for WL#3726 "DDL locking for all metadata objects". Check that we use high-priority metadata lock requests when filling I_S tables. Rearrange the results for easier merges with 6.0. mysql-test/t/kill.test: Added tests checking that DDL and DML statements waiting for metadata locks can be interrupted by KILL command. mysql-test/t/lock.test: One no longer is allowed to do DROP VIEW under LOCK TABLES even if this view is locked by LOCK TABLES. The problem is that in such situation write locks on view are not mutually exclusive so upgrading metadata lock which is required for dropping of view will lead to deadlock. mysql-test/t/lock_multi.test: Adjusted test case to the changes of status in various places caused by change in implementation FLUSH TABLES WITH READ LOCK, which is now takes global metadata lock before flushing tables and therefore waits on at these places. mysql-test/t/ps_ddl.test: We no longer invalidate prepared CREATE TABLE ... SELECT statement if target table changes. This is OK since it is not strictly necessary. The first change is wrong, is caused by FLUSH TABLE now flushing all unused tables. This is a regression that Dmitri fixed in 6.0 in a follow up patch. mysql-test/t/sp.test: Under LOCK TABLES we no longer allow accessing views which were not explicitly locked. To access view we need to obtain metadata lock on it and doing this under LOCK TABLES may lead to deadlocks. mysql-test/t/trigger_notembedded.test: Adjusted test case to the changes of status in various places caused by change in implementation FLUSH TABLES WITH READ LOCK, which is now takes global metadata lock before flushing tables and therefore waits on at these places. mysql-test/t/view.test: One no longer is allowed to do DROP VIEW under LOCK TABLES even if this view is locked by LOCK TABLES. The problem is that in such situation even "write locks" on view are not mutually exclusive so upgrading metadata lock which is required for dropping of view will lead to deadlock. mysql-test/t/view_grant.test: ALTER VIEW implementation was changed to open a view only after checking that user which does alter has appropriate privileges on it. This means that in case when user's privileges are insufficient for this we won't check that new view definer is the same as original one or user performing alter has SUPER privilege. Adjusted test case accordingly. mysql-test/t/view_multi.test: Added test case for bug#25144 "replication / binlog with view breaks". sql/CMakeLists.txt: Added mdl.cc to the list of files needed for building of server. sql/Makefile.am: Added files implementing new meta-data locking subsystem to the server. sql/event_db_repository.cc: Allocate metadata lock requests objects (MDL_LOCK) on execution memory root in cases when TABLE_LIST objects is also allocated there or on stack. sql/ha_ndbcluster.cc: Adjusted code to work nicely with new metadata locking subsystem. close_cached_tables() no longer has wait_for_placeholder argument. Instead of relying on this parameter and related behavior FLUSH TABLES WITH READ LOCK now takes global shared metadata lock. sql/ha_ndbcluster_binlog.cc: Adjusted code to work with new metadata locking subsystem. close_cached_tables() no longer has wait_for_placeholder argument. Instead of relying on this parameter and related behavior FLUSH TABLES WITH READ LOCK now takes global shared metadata lock. sql/handler.cc: update_frm_version(): Directly update TABLE_SHARE::mysql_version member instead of going through all TABLE instances for this table (old code was a legacy from pre-table-definition-cache days). sql/lock.cc: Use new metadata locking subsystem. Threw away most of functions related to name locking as now one is supposed to use metadata locking API instead. In lock_global_read_lock() and unlock_global_read_lock() in order to avoid problems with global read lock sneaking in at the moment when we perform FLUSH TABLES or ALTER TABLE under LOCK TABLES and when tables being reopened are protected only by metadata locks we also have to take global shared meta data lock. sql/log_event.cc: Adjusted code to work with new metadata locking subsystem. For tables open by slave thread for applying RBR events allocate memory for lock request object in the same chunk of memory as TABLE_LIST objects for them. In order to ensure that we keep these objects around until tables are open always close tables before calling Relay_log_info::clear_tables_to_lock(). Use new auxiliary Relay_log_info::slave_close_thread_tables() method to enforce this. sql/log_event_old.cc: Adjusted code to work with new metadata locking subsystem. Since for tables open by slave thread for applying RBR events memory for lock request object is allocated in the same chunk of memory as TABLE_LIST objects for them we have to ensure that we keep these objects around until tables are open. To ensure this we always close tables before calling Relay_log_info::clear_tables_to_lock(). To enfore this we use new auxiliary Relay_log_info::slave_close_thread_tables() method. sql/mdl.cc: Implemented new metadata locking subsystem and API described in WL3726 "DDL locking for all metadata objects". sql/mdl.h: Implemented new metadata locking subsystem and API described in WL3726 "DDL locking for all metadata objects". sql/mysql_priv.h: - close_thread_tables()/close_tables_for_reopen() now has one more argument which indicates that metadata locks should be released but not removed from the context in order to be used later in mdl_wait_for_locks() and tdc_wait_for_old_version(). - close_cached_table() routine is no longer public. - Thread waiting in wait_while_table_is_used() can be now killed so this function returns boolean to make caller aware of such situation. - We no longer have table cache as separate entity instead used and unused TABLE instances are linked to TABLE_SHARE objects in table definition cache. - Now third argument of open_table() is also used for requesting table repair or auto-discovery of table's new definition. So its type was changed from bool to enum. - Added tdc_open_view() function for opening view by getting its definition from disk (and table cache in future). - reopen_name_locked_table() no longer needs "link_in" argument as now we have exclusive metadata locks instead of dummy TABLE instances when this function is called. - find_locked_table() now takes head of list of TABLE instances instead of always scanning through THD::open_tables list. Also added find_write_locked_table() auxiliary. - reopen_tables(), close_cached_tables() no longer have mark_share_as_old and wait_for_placeholder arguments. Instead of relying on this parameters and related behavior FLUSH TABLES WITH READ LOCK now takes global shared metadata lock. - We no longer need drop_locked_tables() and abort_locked_tables(). - mysql_ha_rm_tables() now always assume that LOCK_open is not acquired by caller. - Added notify_thread_having_shared_lock() callback invoked by metadata locking subsystem when acquiring an exclusive lock, for each thread that has a conflicting shared metadata lock. - Introduced expel_table_from_cache() as replacement for remove_table_from_cache() (the main difference is that this new function assumes that caller follows metadata locking protocol and never waits). - Threw away most of functions related to name locking. One should use new metadata locking subsystem and API instead. sql/mysqld.cc: Got rid of call initializing/deinitializing table cache since now it is embedded into table definition cache. Added calls for initializing/ deinitializing metadata locking subsystem. sql/rpl_rli.cc: Introduced auxiliary Relay_log_info::slave_close_thread_tables() method which is used for enforcing that we always close tables open for RBR before deallocating TABLE_LIST elements and MDL_LOCK objects for them. sql/rpl_rli.h: Introduced auxiliary Relay_log_info::slave_close_thread_tables() method which is used for enforcing that we always close tables open for RBR before deallocating TABLE_LIST elements and MDL_LOCK objects for them. sql/set_var.cc: close_cached_tables() no longer has wait_for_placeholder argument. Instead of relying on this parameter and related behavior FLUSH TABLES WITH READ LOCK now takes global shared metadata lock. sql/sp_head.cc: For tables added to the statement's table list by prelocking algorithm we allocate these objects either on the same memory as corresponding table list elements or on THD::locked_tables_root (if we are building table list for LOCK TABLES). sql/sql_acl.cc: Allocate metadata lock requests objects (MDL_LOCK) on execution memory root in cases when we use stack TABLE_LIST objects to open tables. Got rid of redundant code by using unlock_locked_tables() function. sql/sql_base.cc: Changed code to use new MDL subsystem. Got rid of separate table cache. Now used and unused TABLE instances are linked to the TABLE_SHAREs in table definition cache. check_unused(): Adjusted code to the fact that we no longer have separate table cache. Removed dead code. table_def_free(): Free TABLE instances referenced from TABLE_SHARE objects before destroying table definition cache. get_table_share(): Added assert which ensures that noone will be able to access table (and its share) without acquiring some kind of metadata lock first. close_handle_and_leave_table_as_lock(): Adjusted code to the fact that TABLE instances now are linked to list in TABLE_SHARE. list_open_tables(): Changed this function to use table definition cache instead of table cache. free_cache_entry(): Unlink freed TABLE elements from the list of all TABLE instances for the table in TABLE_SHARE. kill_delayed_thread_for_table(): Added auxiliary for killing delayed insert threads for particular table. close_cached_tables(): Got rid of wait_for_refresh argument as we now rely on global shared metadata lock to prevent FLUSH WITH READ LOCK sneaking in when we are reopening tables. Heavily reworked this function to use new MDL code and not to rely on separate table cache entity. close_open_tables(): We no longer have separate table cache. close_thread_tables(): Release metadata locks after closing all tables. Added skip_mdl argument which allows us not to remove metadata lock requests from the context in case when we are going to use this requests later in mdl_wait_for_locks() and tdc_wait_for_old_versions(). close_thread_table()/close_table_for_reopen(): Since we no longer have separate table cache and all TABLE instances are linked to TABLE_SHARE objects in table definition cache we have to link/unlink TABLE object to/from appropriate lists in the share. name_lock_locked_table(): Moved redundant code to find_write_locked_table() function and adjusted code to the fact that wait_while_table_is_used() can now return with an error if our thread is killed. reopen_table_entry(): We no longer need "link_in" argument as with MDL we no longer call this function with dummy TABLE object pre-allocated and added to the THD::open_tables. Also now we add newly-open TABLE instance to the list of share's used TABLE instances. table_cache_insert_placeholder(): Got rid of name-locking legacy. lock_table_name_if_not_cached(): Moved to sql_table.cc the only place where it is used. It was also reimplemented using new MDL API. open_table(): - Reworked this function to use new MDL subsystem. - Changed code to deal with table definition cache directly instead of going through separate table cache. - Now third argument is also used for requesting table repair or auto-discovery of table's new definition. So its type was changed from bool to enum. find_locked_table()/find_write_locked_table(): Accept head of list of TABLE objects as first argument and use this list instead of always searching in THD::open_tables list. Also added auxiliary for finding write-locked locked tables. reopen_table(): Adjusted function to work with new MDL subsystem and to properly manuipulate with lists of used/unused TABLE instaces in TABLE_SHARE. reopen_tables(): Removed mark_share_as_old parameter. Instead of relying on it and related behavior FLUSH TABLES WITH READ LOCK now takes global shared metadata lock. Changed code after removing separate table cache. drop_locked_tables()/abort_locked_tables(): Got rid of functions which are no longer needed. unlock_locked_tables(): Moved this function from sql_parse.cc and changed it to release memory which was used for allocating metadata lock requests for tables open and locked by LOCK TABLES. tdc_open_view(): Intoduced function for opening a view by getting its definition from disk (and table cache in future). reopen_table_entry(): Introduced function for opening table definitions while holding exclusive metatadata lock on it. open_unireg_entry(): Got rid of this function. Most of its functionality is relocated to open_table() and open_table_fini() functions, and some of it to reopen_table_entry() and tdc_open_view(). Also code resposible for auto-repair and auto-discovery of tables was moved to separate function. open_table_entry_fini(): Introduced function which contains common actions which finalize process of TABLE object creation. auto_repair_table(): Moved code responsible for auto-repair of table being opened here. handle_failed_open_table_attempt() Moved code responsible for handling failing attempt to open table to one place (retry due to lock conflict/old version, auto-discovery and repair). open_tables(): - Flush open HANDLER tables if they have old version of if there is conflicting metadata lock against them (before this moment we had this code in open_table()). - When we open view which should be processed via derived table on the second execution of prepared statement or stored routine we still should call open_table() for it in order to obtain metadata lock on it and prepare its security context. - In cases when we discover that some special handling of failure to open table is needed call handle_failed_open_table_attempt() which handles all such scenarios. open_ltable(): Handling of various special scenarios of failure to open a table was moved to separate handle_failed_open_table_attempt() function. remove_db_from_cache(): Removed this function as it is no longer used. notify_thread_having_shared_lock(): Added callback which is invoked by MDL subsystem when acquiring an exclusive lock, for each thread that has a conflicting shared metadata lock. expel_table_from_cache(): Introduced function for removing unused TABLE instances. Unlike remove_table_from_cache() it relies on caller following MDL protocol and having appropriate locks when calling it and thus does not do any waiting if table is still in use. tdc_wait_for_old_version(): Added function which allows open_tables() to wait in cases when we discover that we should back-off due to presence of old version of table. abort_and_upgrade_lock(): Use new MDL calls. mysql_wait_completed_table(): Got rid of unused function. open_system_tables_for_read/for_update()/performance_schema_table(): Allocate MDL_LOCK objects on execution memory root in cases when TABLE_LIST objects for corresponding tables is allocated on stack. close_performance_schema_table(): Release metadata locks after closing tables. ****** Use I_P_List for free/used tables list in the table share. sql/sql_binlog.cc: Use Relay_log_info::slave_close_thread_tables() method to enforce that we always close tables open for RBR before deallocating TABLE_LIST elements and MDL_LOCK objects for them. sql/sql_class.cc: Added meta-data locking contexts as part of Open_tables_state context. Also introduced THD::locked_tables_root memory root which is to be used for allocating MDL_LOCK objects for tables in LOCK TABLES statement (end of lifetime for such objects is UNLOCK TABLES so we can't use statement or execution root for them). sql/sql_class.h: Added meta-data locking contexts as part of Open_tables_state context. Also introduced THD::locked_tables_root memory root which is to be used for allocating MDL_LOCK objects for tables in LOCK TABLES statement (end of lifetime for such objects is UNLOCK TABLES so we can't use statement or execution root for them). Note: handler_mdl_context and locked_tables_root and mdl_el_root will be removed by subsequent patches. sql/sql_db.cc: mysql_rm_db() does not really need to call remove_db_from_cache() as it drops each table in the database using mysql_rm_table_part2(), which performs all necessary operations on table (definition) cache. sql/sql_delete.cc: Use the new metadata locking API for TRUNCATE. sql/sql_handler.cc: Changed HANDLER implementation to use new metadata locking subsystem. Note that MDL_LOCK objects for HANDLER tables are allocated in the same chunk of heap memory as TABLE_LIST object for those tables. sql/sql_insert.cc: mysql_insert(): find_locked_table() now takes head of list of TABLE object as its argument instead of always scanning through THD::open_tables list. handle_delayed_insert(): Allocate metadata lock request object for table open by delayed insert thread on execution memroot. create_table_from_items(): We no longer allocate dummy TABLE objects for tables being created if they don't exist. As consequence reopen_name_locked_table() no longer has link_in argument. open_table() now has one more argument which is not relevant for temporary tables. sql/sql_parse.cc: - Moved unlock_locked_tables() routine to sql_base.cc and made available it in other files. Got rid of some redundant code by using this function. - Replaced boolean TABLE_LIST::create member with enum open_table_type member. - Use special memory root for allocating MDL_LOCK objects for tables open and locked by LOCK TABLES (these object should live till UNLOCK TABLES so we can't allocate them on statement nor execution memory root). Also properly set metadata lock upgradability attribure for those tables. - Under LOCK TABLES it is no longer allowed to flush tables which are not write-locked as this breaks metadata locking protocol and thus potentially might lead to deadlock. - Added auxiliary adjust_mdl_locks_upgradability() function. sql/sql_partition.cc: Adjusted code to the fact that reopen_tables() no longer has "mark_share_as_old" argument. Got rid of comments which are no longer true. sql/sql_plist.h: Added I_P_List template class for parametrized intrusive doubly linked lists and I_P_List_iterator for corresponding iterator. Unlike for I_List<> list elements of such list can participate in several lists. Unlike List<> such lists are doubly-linked and intrusive. sql/sql_plugin.cc: Allocate metadata lock requests objects (MDL_LOCK) on execution memory root in cases when we use stack TABLE_LIST objects to open tables. sql/sql_prepare.cc: Replaced boolean TABLE_LIST::create member with enum open_table_type member. This allows easily handle situation in which instead of opening the table we want only to take exclusive metadata lock on it. sql/sql_rename.cc: Use new metadata locking subsystem in implementation of RENAME TABLE. sql/sql_servers.cc: Allocate metadata lock requests objects (MDL_LOCK) on execution memory root in cases when we use stack TABLE_LIST objects to open tables. Got rid of redundant code by using unlock_locked_tables() function. sql/sql_show.cc: Acquire shared metadata lock when we are getting information for I_S table directly from TABLE_SHARE without doing full-blown table open. We use high priority lock request in this situation in order to avoid deadlocks. Also allocate metadata lock requests objects (MDL_LOCK) on execution memory root in cases when TABLE_LIST objects are also allocated there sql/sql_table.cc: mysql_rm_table(): Removed comment which is no longer relevant. mysql_rm_table_part2(): Now caller of mysql_ha_rm_tables() should not own LOCK_open. Adjusted code to use new metadata locking subsystem instead of name-locks. lock_table_name_if_not_cached(): Moved this function from sql_base.cc to this file and reimplemented it using metadata locking API. mysql_create_table(): Adjusted code to use new MDL API. wait_while_table_is_used(): Changed function to use new MDL subsystem. Made thread waiting in it killable (this also led to introduction of return value so caller can distinguish successful executions from situations when waiting was aborted). close_cached_tables(): Thread waiting in this function is killable now. As result it has return value for distinguishing between succes and failure. Got rid of redundant boradcast_refresh() call. prepare_for_repair(): Use MDL subsystem instead of name-locks. mysql_admin_table(): mysql_ha_rm_tables() now always assumes that caller doesn't own LOCK_open. mysql_repair_table(): We should mark all elements of table list as requiring upgradable metadata locks. mysql_create_table_like(): Use new MDL subsystem instead of name-locks. create_temporary_tables(): We don't need to obtain metadata locks when creating temporary table. mysql_fast_or_online_alter_table(): Thread waiting in wait_while_table_is_used() is now killable. mysql_alter_table(): Adjusted code to work with new MDL subsystem and to the fact that threads waiting in what_while_table_is_used() and close_cached_table() are now killable. sql/sql_test.cc: We no longer have separate table cache. TABLE instances are now associated with/linked to TABLE_SHARE objects in table definition cache. sql/sql_trigger.cc: Adjusted code to work with new metadata locking subsystem. Also reopen_tables() no longer has mark_share_as_old argument (Instead of relying on this parameter and related behavior FLUSH TABLES WITH READ LOCK now takes global shared metadata lock). sql/sql_udf.cc: Allocate metadata lock requests objects (MDL_LOCK) on execution memory root in cases when we use stack TABLE_LIST objects to open tables. sql/sql_update.cc: Adjusted code to work with new meta-data locking subsystem. sql/sql_view.cc: Added proper meta-data locking to implementations of CREATE/ALTER/DROP VIEW statements. Now we obtain exclusive meta-data lock on a view before creating/ changing/dropping it. This ensures that all concurrent statements that use this view will finish before our statement will proceed and therefore we will get correct order of statements in the binary log. Also ensure that TABLE_LIST::mdl_upgradable attribute is properly propagated for underlying tables of view. sql/table.cc: Added auxiliary alloc_mdl_locks() function for allocating metadata lock request objects for all elements of table list. sql/table.h: TABLE_SHARE: Got rid of unused members. Introduced members for storing lists of used and unused TABLE objects for this share. TABLE: Added members for linking TABLE objects into per-share lists of used and unused TABLE instances. Added member for holding pointer to metadata lock for this table. TABLE_LIST: Replaced boolean TABLE_LIST::create member with enum open_table_type member. This allows easily handle situation in which instead of opening the table we want only to take exclusive meta-data lock on it (we need this in order to handle ALTER VIEW and CREATE VIEW statements). Introduced new mdl_upgradable member for marking elements of table list for which we need to take upgradable shared metadata lock instead of plain shared metadata lock. Added pointer for holding pointer to MDL_LOCK for the table. Added auxiliary alloc_mdl_locks() function for allocating metadata lock requests objects for all elements of table list. Added auxiliary set_all_mdl_upgradable() function for marking all elements in table list as requiring upgradable metadata locks. storage/myisammrg/ha_myisammrg.cc: Allocate MDL_LOCK objects for underlying tables of MERGE table. To be reworked once Ingo pushes his patch for WL4144.
2009-11-30 16:55:03 +01:00
call p_verify_reprepare_count(0);
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
SUCCESS
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
SUCCESS
drop table t2;
create view t2 as select 1;
execute stmt;
Got one of the listed errors
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
Got one of the listed errors
call p_verify_reprepare_count(0);
SUCCESS
drop view t2;
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
drop table t1;
create table t1 (x varchar(20));
execute stmt;
call p_verify_reprepare_count(1);
SUCCESS
select * from t2;
x
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
SUCCESS
drop table t2;
alter table t1 add column y decimal(10,3);
execute stmt;
call p_verify_reprepare_count(1);
SUCCESS
select * from t2;
x y
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
SUCCESS
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
drop table t1;
deallocate prepare stmt;
create table t1 (a int);
insert into t1 (a) values (1);
prepare stmt from "create temporary table if not exists t2 as select * from t1";
execute stmt;
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
SUCCESS
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
execute stmt;
Warnings:
Note 1050 Table 't2' already exists
call p_verify_reprepare_count(1);
SUCCESS
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
select * from t2;
a
1
1
execute stmt;
Warnings:
Note 1050 Table 't2' already exists
call p_verify_reprepare_count(0);
SUCCESS
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
select * from t2;
a
1
1
1
drop table t2;
create temporary table t2 (a varchar(10));
execute stmt;
Warnings:
Note 1050 Table 't2' already exists
select * from t2;
a
1
call p_verify_reprepare_count(1);
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
SUCCESS
drop table t1;
create table t1 (x int);
execute stmt;
Warnings:
Note 1050 Table 't2' already exists
call p_verify_reprepare_count(1);
SUCCESS
execute stmt;
Warnings:
Note 1050 Table 't2' already exists
call p_verify_reprepare_count(0);
SUCCESS
drop table t1;
drop temporary table t2;
drop table t2;
deallocate prepare stmt;
create table t1 (a int);
prepare stmt from "create table t2 like t1";
execute stmt;
call p_verify_reprepare_count(0);
SUCCESS
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
SUCCESS
drop table t2;
drop table t1;
execute stmt;
ERROR 42S02: Table 'test.t1' doesn't exist
call p_verify_reprepare_count(0);
SUCCESS
execute stmt;
ERROR 42S02: Table 'test.t1' doesn't exist
call p_verify_reprepare_count(0);
SUCCESS
create table t1 (x char(17));
execute stmt;
call p_verify_reprepare_count(1);
SUCCESS
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
SUCCESS
drop table t2;
alter table t1 add column y time;
execute stmt;
call p_verify_reprepare_count(1);
SUCCESS
select * from t2;
x y
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
SUCCESS
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
drop table t1;
drop table t2;
deallocate prepare stmt;
#
# SQLCOM_UPDATE
#
drop table if exists t1, t2;
create table t1 (a int);
create table t2 (a int);
prepare stmt from "update t2 set a=a+1 where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1, t2;
deallocate prepare stmt;
#
# SQLCOM_INSERT
#
drop table if exists t1, t2;
create table t1 (a int);
create table t2 (a int);
prepare stmt from "insert into t2 set a=((1) in (select * from t1))";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1, t2;
deallocate prepare stmt;
#
# SQLCOM_INSERT_SELECT
#
drop table if exists t1, t2;
create table t1 (a int);
create table t2 (a int);
prepare stmt from "insert into t2 select * from t1";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1, t2;
deallocate prepare stmt;
#
# SQLCOM_REPLACE
#
drop table if exists t1, t2;
create table t1 (a int);
create table t2 (a int);
prepare stmt from "replace t2 set a=((1) in (select * from t1))";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1, t2;
deallocate prepare stmt;
#
# SQLCOM_REPLACE_SELECT
#
drop table if exists t1, t2;
create table t1 (a int);
create table t2 (a int);
prepare stmt from "replace t2 select * from t1";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1, t2;
deallocate prepare stmt;
#
# SQLCOM_DELETE
#
drop table if exists t1, t2;
create table t1 (a int);
create table t2 (a int);
prepare stmt from "delete from t2 where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1, t2;
deallocate prepare stmt;
#
# SQLCOM_DELETE_MULTI
#
drop table if exists t1, t2, t3;
create table t1 (a int);
create table t2 (a int);
create table t3 (a int);
prepare stmt from "delete t2, t3 from t2, t3 where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1, t2, t3;
deallocate prepare stmt;
#
# SQLCOM_UPDATE_MULTI
#
drop table if exists t1, t2, t3;
create table t1 (a int);
create table t2 (a int);
create table t3 (a int);
prepare stmt from "update t2, t3 set t3.a=t2.a, t2.a=null where (1) in (select * from t1)";
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1, t2, t3;
deallocate prepare stmt;
# Intermediate results: 8 SQLCOMs tested, 8 automatic reprepares
call p_verify_reprepare_count(8);
SUCCESS
#
# SQLCOM_LOAD
#
drop table if exists t1;
create table t1 (a varchar(20));
prepare stmt from "load data infile '../std_data_ln/words.dat' into table t1";
ERROR HY000: This command is not supported in the prepared statement protocol yet
drop table t1;
#
# SQLCOM_SHOW_DATABASES
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show databases where (1) in (select * from t1)";
execute stmt;
Database
drop table t1;
create table t1 (x int);
execute stmt;
Database
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_TABLES
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show tables where (1) in (select * from t1)";
execute stmt;
Tables_in_test
drop table t1;
create table t1 (x int);
execute stmt;
Tables_in_test
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_FIELDS
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show fields from t1 where (1) in (select * from t1)";
execute stmt;
Field Type Null Key Default Extra
drop table t1;
create table t1 (x int);
execute stmt;
Field Type Null Key Default Extra
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_KEYS
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show keys from t1 where (1) in (select * from t1)";
execute stmt;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
drop table t1;
create table t1 (x int);
execute stmt;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_VARIABLES
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show variables where (1) in (select * from t1)";
execute stmt;
Variable_name Value
drop table t1;
create table t1 (x int);
execute stmt;
Variable_name Value
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_STATUS
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show status where (1) in (select * from t1)";
execute stmt;
Variable_name Value
drop table t1;
create table t1 (x int);
execute stmt;
Variable_name Value
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_ENGINE_STATUS, SQLCOM_SHOW_ENGINE_LOGS,
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
# SQLCOM_SHOW_ENGINE_MUTEX, SQLCOM_SHOW_PROCESSLIST
#
# Currently can not have a where clause, need to be covered
# with tests
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show engine all status where (1) in (select * from t1)";
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'where (1) in (select * from t1)' at line 1
prepare stmt from "show engine all logs where (1) in (select * from t1)";
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'where (1) in (select * from t1)' at line 1
prepare stmt from "show engine all mutex where (1) in (select * from t1)";
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'where (1) in (select * from t1)' at line 1
prepare stmt from "show processlist where (1) in (select * from t1)";
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'where (1) in (select * from t1)' at line 1
drop table t1;
#
# SQLCOM_SHOW_CHARSETS
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show charset where (1) in (select * from t1)";
execute stmt;
Charset Description Default collation Maxlen
drop table t1;
create table t1 (x int);
execute stmt;
Charset Description Default collation Maxlen
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_COLLATIONS
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show collation where (1) in (select * from t1)";
execute stmt;
Collation Charset Id Default Compiled Sortlen
drop table t1;
create table t1 (x int);
execute stmt;
Collation Charset Id Default Compiled Sortlen
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_TABLE_STATUS
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show table status where (1) in (select * from t1)";
execute stmt;
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
drop table t1;
create table t1 (x int);
execute stmt;
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_TRIGGERS
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show triggers where (1) in (select * from t1)";
execute stmt;
Trigger Event Table Statement Timing Created sql_mode Definer character_set_client collation_connection Database Collation
drop table t1;
create table t1 (x int);
execute stmt;
Trigger Event Table Statement Timing Created sql_mode Definer character_set_client collation_connection Database Collation
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_OPEN_TABLES
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show open tables where (1) in (select * from t1)";
execute stmt;
Database Table In_use Name_locked
drop table t1;
create table t1 (x int);
execute stmt;
Database Table In_use Name_locked
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_STATUS_PROC
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show procedure status where (1) in (select * from t1)";
execute stmt;
Db Name Type Definer Modified Created Security_type Comment character_set_client collation_connection Database Collation
drop table t1;
create table t1 (x int);
execute stmt;
Db Name Type Definer Modified Created Security_type Comment character_set_client collation_connection Database Collation
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_STATUS_FUNC
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "show function status where (1) in (select * from t1)";
execute stmt;
Db Name Type Definer Modified Created Security_type Comment character_set_client collation_connection Database Collation
drop table t1;
create table t1 (x int);
execute stmt;
Db Name Type Definer Modified Created Security_type Comment character_set_client collation_connection Database Collation
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_SHOW_EVENTS
#
#
# Please see this test in ps.test, it requires not_embedded.inc
#
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
#
# SQLCOM_SET_OPTION
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "set @a=((1) in (select * from t1))";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_DO
#
drop table if exists t1;
create table t1 (a int);
prepare stmt from "do ((1) in (select * from t1))";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;
#
# SQLCOM_CALL
#
drop table if exists t1;
drop procedure if exists p1;
create procedure p1(a int) begin end;
create table t1 (a int);
prepare stmt from "call p1((1) in (select * from t1))";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
drop procedure p1;
deallocate prepare stmt;
#
# SQLCOM_CREATE_VIEW
#
drop table if exists t1;
drop view if exists v1;
create table t1 (a int);
prepare stmt from "create view v1 as select * from t1";
execute stmt;
drop view v1;
drop table t1;
create table t1 (x int);
execute stmt;
drop view v1;
drop table t1;
deallocate prepare stmt;
# Intermediate result: number of reprepares matches the number
# of tests
call p_verify_reprepare_count(17);
WL#4165 "Prepared statements: validation". Add metadata validation to ~20 more SQL commands. Make sure that these commands actually work in ps-protocol, since until now they were enabled, but not carefully tested. Fixes the ml003 bug found by Matthias during internal testing of the patch. mysql-test/r/ps_ddl.result: Update test results (WL#4165) mysql-test/t/ps_ddl.test: Cover with tests metadata validation of 26 SQL statements. sql/mysql_priv.h: Fix the name in the comment. sql/sp_head.cc: Changed the way the observer is removed in case of stored procedures to support validation prepare stmt from "call p1(<expr>)": whereas tables used in the expression must be validated, substatements of p1 must not. The previous scheme used to silence the observer only in stored functions and triggers. sql/sql_class.cc: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_class.h: Now the observer is silenced in sp_head::execute(). Remove it from Sub_statement_state. sql/sql_parse.cc: Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it. sql/sql_prepare.cc: Add metadata validation to ~20 new SQLCOMs that need it. Fix memory leaks with expressions used in SHOW DATABASES and CALL (and prepared statements). We need to fix all expressions at prepare, since if these expressions use subqueries, there are one-time transformations of the parse tree that must be done at prepare. List of fixed commands includes: SHOW TABLES, SHOW DATABASES, SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL. Add comment to set_parameters(). sql/table.h: Update comments.
2008-04-16 23:04:49 +02:00
SUCCESS
#
# SQLCOM_ALTER_VIEW
#
drop view if exists v1;
create view v1 as select 1;
prepare stmt from "alter view v1 as select 2";
ERROR HY000: This command is not supported in the prepared statement protocol yet
drop view v1;
# Cleanup
#
drop temporary table if exists t1, t2, t3;
drop table if exists t1, t2, t3, v1, v2;
drop procedure if exists p_verify_reprepare_count;
drop procedure if exists p1;
drop function if exists f1;
drop view if exists v1, v2;