EVOLUTION-MANAGER

Edit File: ps_ddl.test

#
# Testing the behavior of 'PREPARE', 'DDL', 'EXECUTE' scenarios
#
# Background:
# In a statement like "select * from t1", t1 can be:
# - nothing (the table does not exist)
# - a real table
# - a temporary table
# - a view
#
# Changing the nature of "t1" between a PREPARE and an EXECUTE
# can invalidate the internal state of a prepared statement, so that,
# during the execute, the server should:
# - detect state changes and fail to execute a statement,
#   instead of crashing the server or returning wrong results
# - "RE-PREPARE" the statement to restore a valid internal state.
#
# Also, changing the physical structure of "t1", by:
# - changing the definition of t1 itself (DDL on tables, views)
# - changing TRIGGERs associated with a table
# - changing PROCEDURE, FUNCTION referenced by a TRIGGER body,
# - changing PROCEDURE, FUNCTION referenced by a VIEW body,
# impacts the internal structure of a prepared statement, and should
# cause the same verifications at execute time to be performed.
#
# This test provided in this file cover the different state transitions
# between a PREPARE and an EXECUTE, and are organized as follows:
# - Part  1: NOTHING -> TABLE
# - Part  2: NOTHING -> TEMPORARY TABLE
# - Part  3: NOTHING -> VIEW
# - Part  4: TABLE -> NOTHING
# - Part  5: TABLE -> TABLE (DDL)
# - Part  6: TABLE -> TABLE (TRIGGER)
# - Part  7: TABLE -> TABLE (TRIGGER dependencies)
# - Part  8: TABLE -> TEMPORARY TABLE
# - Part  9: TABLE -> VIEW
# - Part 10: TEMPORARY TABLE -> NOTHING
# - Part 11: TEMPORARY TABLE -> TABLE
# - Part 12: TEMPORARY TABLE -> TEMPORARY TABLE (DDL)
# - Part 13: TEMPORARY TABLE -> VIEW
# - Part 14: VIEW -> NOTHING
# - Part 15: VIEW -> TABLE
# - Part 16: VIEW -> TEMPORARY TABLE
# - Part 17: VIEW -> VIEW (DDL)
# - Part 18: VIEW -> VIEW (VIEW dependencies)
# - Part 19: Special tables (INFORMATION_SCHEMA)
# - Part 20: Special tables (log tables)
# - Part 21: Special tables (system tables)
# - Part 22: Special tables (views temp tables)
# - Part 23: Special statements
# - Part 24: Testing the strength of TABLE_SHARE version
--disable_warnings
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;
--enable_warnings

# Avoid selecting from a huge table possibly left over from previous tests,
# as this really hurts --valgrind testing.
TRUNCATE TABLE mysql.general_log;

delimiter |;
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|
delimiter ;|
set @reprepare_count= 0;
flush status;

--echo =====================================================================
--echo Part 1: NOTHING -> TABLE transitions
--echo =====================================================================

# can not be tested since prepare failed
--error ER_NO_SUCH_TABLE
prepare stmt from "select * from t1";

--echo =====================================================================
--echo Part 2: NOTHING -> TEMPORARY TABLE transitions
--echo =====================================================================

# can not be tested

--echo =====================================================================
--echo Part 3: NOTHING -> VIEW transitions
--echo =====================================================================

# can not be tested

--echo =====================================================================
--echo Part 4: TABLE -> NOTHING transitions
--echo =====================================================================

--echo # Test 4-a: select ... from <table>
create table t1 (a int);

prepare stmt from "select * from t1";
execute stmt;
call p_verify_reprepare_count(0);
execute stmt;
call p_verify_reprepare_count(0);

drop table t1;
--error ER_NO_SUCH_TABLE
execute stmt;
call p_verify_reprepare_count(0);
--error ER_NO_SUCH_TABLE
execute stmt;
call p_verify_reprepare_count(0);
deallocate prepare stmt;

--echo # Test 4-b: TABLE -> NOTHING by renaming the table
create table t1 (a int);
prepare stmt from "select * from t1";
execute stmt;
call p_verify_reprepare_count(0);
execute stmt;
call p_verify_reprepare_count(0);

rename table t1 to t2;
--error ER_NO_SUCH_TABLE
execute stmt;
call p_verify_reprepare_count(0);
--error ER_NO_SUCH_TABLE
execute stmt;
call p_verify_reprepare_count(0);

deallocate prepare stmt;
drop table t2;

--echo =====================================================================
--echo Part 5: TABLE -> TABLE (DDL) transitions
--echo =====================================================================

create table t1 (a int);

prepare stmt from "select a from t1";
execute stmt;
call p_verify_reprepare_count(0);
execute stmt;
call p_verify_reprepare_count(0);

alter table t1 add column (b int);

execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

drop table t1;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 6: TABLE -> TABLE (TRIGGER) transitions
--echo =====================================================================

--echo # 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);

# Relevant trigger: execute should reprepare
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);
select @message;
set @val=3;
execute stmt using @val;
call p_verify_reprepare_count(0);
select @message;

prepare stmt from "insert into t1 (a) value (?)";
set @val=4;
execute stmt using @val;
call p_verify_reprepare_count(0);
select @message;

--echo # Test 6-b: adding an irrelevant trigger

# Unrelated trigger: reprepare may or may not happen, implementation dependent
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);
select @message;
set @val=6;
execute stmt using @val;
call p_verify_reprepare_count(0);
select @message;

prepare stmt from "insert into t1 (a) value (?)";
set @val=7;
execute stmt using @val;
call p_verify_reprepare_count(0);
select @message;

--echo # Test 6-c: changing a relevant trigger

# Relevant trigger: execute should reprepare
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);
select @message;
set @val=9;
execute stmt using @val;
call p_verify_reprepare_count(0);
select @message;

prepare stmt from "insert into t1 (a) value (?)";
set @val=10;
execute stmt using @val;
call p_verify_reprepare_count(0);
select @message;

--echo # Test 6-d: changing an irrelevant trigger

# Unrelated trigger: reprepare may or may not happen, implementation dependent
drop trigger t1_bd;

set @val=11;
execute stmt using @val;
call p_verify_reprepare_count(1);
select @message;

--echo Test 6-e: removing a relevant trigger

drop trigger t1_bi;

set @val=12;
execute stmt using @val;
call p_verify_reprepare_count(1);
select @message;
set @val=13;
execute stmt using @val;
call p_verify_reprepare_count(0);
select @message;

prepare stmt from "insert into t1 (a) value (?)";
set @val=14;
execute stmt using @val;
call p_verify_reprepare_count(0);
select @message;

select * from t1 order by a;
drop table t1;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 7: TABLE -> TABLE (TRIGGER dependencies) transitions
--echo =====================================================================

--echo # Test 7-a: dependent PROCEDURE has changed
--echo #

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;
--echo # Cleanup
drop procedure p1;
call p_verify_reprepare_count(1);

--echo # Test 7-b: dependent FUNCTION has changed
--echo #
--echo # Note, this scenario is supported, subject of Bug#12093
--echo #
drop trigger t1_ai;
create trigger t1_ai after insert on t1 for  each row
  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;
drop function f1;
create function f1 (a int) returns int return 0;
execute stmt using @var;
call p_verify_reprepare_count(1);
drop function f1;
deallocate prepare stmt;

--echo # Test 7-c: dependent VIEW has changed
--echo #
--echo # Note, this scenario is not functioning correctly, see
--echo # Bug#33255 Trigger using views and view ddl : corrupted triggers
--echo # and Bug #33000 Triggers do not detect changes in meta-data.
--echo #
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);

--echo # Demonstrate that the same bug is present
--echo # without prepared statements
insert into t1 (a) values (5);
select * from t2;
select * from t3;
drop view v1;
create view v1 as select a from t3;
--error ER_NO_SUCH_TABLE
insert into t1 (a) values (6);
flush table t1;
insert into t1 (a) values (6);
select * from t2;
select * from t3;

prepare stmt from "insert into t1 (a) values (?)";
set @var=7;
execute stmt using @var;
call p_verify_reprepare_count(0);
select * from t3;
select * from t2;
drop view v1;
create view v1 as select a from t2;
set @var=8;
--echo # View in the INSERT-statement in the trigger is still pointing to
--echo # table 't3', because the trigger hasn't noticed the change
--echo # in view definition. This will be fixed by WL#4179.
--echo #
--echo # The prepared INSERT-statement however does notice the change,
--echo # but repreparation of the main statement doesn't cause repreparation
--echo # of trigger statements.
--echo #
--echo # The following EXECUTE results in ER_NO_SUCH_TABLE (t3) error, because
--echo # pre-locking list of the prepared statement has been changed
--echo # (the prepared statement has noticed the meta-data change),
--echo # but the trigger still tries to deal with 't3', which is not opened.
--echo # That's why '8' is not inserted neither into 't2', nor into 't3'.
--error ER_NO_SUCH_TABLE
execute stmt using @var;
call p_verify_reprepare_count(1);
select * from t2;
select * from t3;
flush table t1;
set @var=9;
execute stmt using @var;
call p_verify_reprepare_count(1);
select * from t2;
select * from t3;
drop view v1;
drop table t1,t2,t3;

--echo # 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;
--echo # Since the dependent table is tracked in the prelocked
--echo # list of the prepared statement, invalidation happens
--echo # and the statement is re-prepared. This is an unnecessary
--echo # side effect, since the statement that *is* dependent
--echo # on t2 definition is inside the trigger, and it is currently
--echo # not reprepared (see the previous test case).
execute stmt using @var;
call p_verify_reprepare_count(1);
select * from t1;
select * from t2;
drop table t1,t2;

--echo # 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);
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);

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);
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);
select * from t1 join t2 on (t1.a=t2.a) join t3 on (t2.a=t3.a);
select * from t1 join t2 on (t1.a=t2.a) join t4 on (t2.a=t4.a);

drop table t1, t2, t3, t4;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 8: TABLE -> TEMPORARY TABLE transitions
--echo =====================================================================

--echo # Test 8-a: base table used recreated as temporary table
create table t1 (a int);

prepare stmt from "select * from t1";
execute stmt;

drop table t1;
create temporary table t1 (a int);

execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

drop table t1;
deallocate prepare stmt;

--echo # 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;
call p_verify_reprepare_count(0);
execute stmt;
call p_verify_reprepare_count(0);

create temporary table t1 AS SELECT 1;
execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

deallocate prepare stmt;
drop temporary table t1;
drop table t1;

--echo =====================================================================
--echo Part 9: TABLE -> VIEW transitions
--echo =====================================================================

create table t1 (a int);

prepare stmt from "select * from t1";
execute stmt;
call p_verify_reprepare_count(0);

drop table t1;
create table t2 (a int);
create view t1 as select * from t2;

execute stmt;
call p_verify_reprepare_count(1);

drop view t1;
drop table t2;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 10: TEMPORARY TABLE -> NOTHING transitions
--echo =====================================================================

create temporary table t1 (a int);

prepare stmt from "select * from t1";
execute stmt;
call p_verify_reprepare_count(0);

drop temporary table t1;
--error ER_NO_SUCH_TABLE
execute stmt;
call p_verify_reprepare_count(0);
deallocate prepare stmt;

--echo =====================================================================
--echo Part 11: TEMPORARY TABLE -> TABLE transitions
--echo =====================================================================

--echo # 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;
call p_verify_reprepare_count(0);

drop temporary table t1;

execute stmt;
call p_verify_reprepare_count(1);

select * from t1;
drop table t1;
deallocate prepare stmt;

--echo # Test 11-b: temporary table has precedence over base table with same name
--echo #            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;
call p_verify_reprepare_count(0);
execute stmt;
call p_verify_reprepare_count(0);

drop temporary table t1;
execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

deallocate prepare stmt;
drop table t1;

--echo =====================================================================
--echo Part 12: TEMPORARY TABLE -> TEMPORARY TABLE (DDL) transitions
--echo =====================================================================

create temporary table t1 (a int);

prepare stmt from "select a from t1";
execute stmt;
call p_verify_reprepare_count(0);

drop temporary table t1;
create temporary table t1 (a int, b int);

execute stmt;
call p_verify_reprepare_count(1);

select * from t1;
drop temporary table t1;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 13: TEMPORARY TABLE -> VIEW transitions
--echo =====================================================================

create temporary table t1 (a int);
create table t2 (a int);

prepare stmt from "select * from t1";
execute stmt;
call p_verify_reprepare_count(0);

drop temporary table t1;
create view t1 as select * from t2;

execute stmt;
call p_verify_reprepare_count(1);

drop view t1;
drop table t2;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 14: VIEW -> NOTHING transitions
--echo =====================================================================

create table t2 (a int);
create view t1 as select * from t2;

prepare stmt from "select * from t1";
execute stmt;
drop view t1;

--error ER_NO_SUCH_TABLE
execute stmt;
call p_verify_reprepare_count(0);
--error ER_NO_SUCH_TABLE
execute stmt;
call p_verify_reprepare_count(0);

drop table t2;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 15: VIEW -> TABLE transitions
--echo =====================================================================

create table t2 (a int);
create view t1 as select * from t2;

prepare stmt from "select * from t1";
execute stmt;
call p_verify_reprepare_count(0);

drop view t1;
create table t1 (a int);

execute stmt;
call p_verify_reprepare_count(1);

drop table t2;
drop table t1;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 16: VIEW -> TEMPORARY TABLE transitions
--echo =====================================================================

--echo #
--echo # Test 1: Merged view
--echo #
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;
call p_verify_reprepare_count(0);

create temporary table t1 (a int);
# t1 still refers to the view - no reprepare has been done.
execute stmt;
call p_verify_reprepare_count(0);

drop view t1;
# t1 still refers to the, now deleted, view - no reprepare has been done.
--error ER_NO_SUCH_TABLE
execute stmt;
call p_verify_reprepare_count(0);

drop table t2;
drop temporary table t1;
deallocate prepare stmt;

--echo #
--echo # Test 2: Materialized view
--echo #
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;
call p_verify_reprepare_count(0);

create temporary table t1 (a int);
# t1 still refers to the view - no reprepare has been done.
execute stmt;
call p_verify_reprepare_count(0);

drop view t1;
# t1 still refers to the, now deleted, view - no reprepare has been done.
--error ER_NO_SUCH_TABLE
execute stmt;
call p_verify_reprepare_count(0);

drop table t2;
drop temporary table t1;
deallocate prepare stmt;

--echo #
--echo # Test 3: View referencing an Information schema table
--echo #
create view t1 as select table_name from information_schema.views;

prepare stmt from "select * from t1";
execute stmt;
call p_verify_reprepare_count(0);

create temporary table t1 (a int);
# t1 has been substituted with a reference to the IS table
execute stmt;
call p_verify_reprepare_count(0);

drop view t1;
--error 1146
execute stmt;
call p_verify_reprepare_count(0);

drop temporary table t1;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 17: VIEW -> VIEW (DDL) transitions
--echo =====================================================================

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;

prepare stmt from "select * from t1";
execute stmt;

drop view t1;
create view t1 as select a, 2*a as b, 5*a as c from t2;
select * from t1;

--echo # This is actually a test case for Bug#11748352 (36002 Prepared
--echo # statements: if a view used in a statement is replaced, bad data).
execute stmt;
call p_verify_reprepare_count(1);

flush table t2;

execute stmt;
call p_verify_reprepare_count(1);

--echo # Check that we properly handle ALTER VIEW statements.
execute stmt;
call p_verify_reprepare_count(0);
alter view t1 as select a, 3*a as b, 4*a as c from t2;
execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);
execute stmt;
call p_verify_reprepare_count(0);
select * from t1;

--echo # Check that DROP & CREATE is properly handled under LOCK TABLES.
drop view t1;
flush tables; # empty TDC
create view t1 as select a, 5*a as b, 6*a as c from t2;
lock tables t1 read, t2 read;
execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);
execute stmt;
call p_verify_reprepare_count(0);
unlock tables;
--echo #   ... and once again...
drop view t1;
create view t1 as select a, 6*a as b, 7*a as c from t2;
lock tables t1 read, t2 read;
execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);
execute stmt;
call p_verify_reprepare_count(0);
unlock tables;

--echo # Check that ALTER VIEW is properly handled under LOCK TABLES.
alter view t1 as select a, 7*a as b, 8*a as c from t2;
lock tables t1 read, t2 read;
execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);
execute stmt;
call p_verify_reprepare_count(0);
unlock tables;

drop table t2;
drop view t1;
deallocate prepare stmt;

--echo # Check that DROP & CREATE is properly handled under LOCK TABLES when
--echo # LOCK TABLES does not contain the complete set of views.

create table t1(a int);
insert into t1 values (1), (2), (3);

create view v1 as select a from t1;

lock tables t1 read, v1 read;

prepare stmt from 'select * from v1';

execute stmt;
call p_verify_reprepare_count(0);

unlock tables;

drop view v1;
create view v1 as select 2*a from t1;

# Miss v1.
lock tables t1 read;

--error ER_TABLE_NOT_LOCKED
execute stmt;

unlock tables;

drop table t1;
drop view v1;
deallocate prepare stmt;

--echo # Check that ALTER VIEW is properly handled under LOCK TABLES when
--echo # LOCK TABLES does not contain the complete set of views.

create table t1(a int);
insert into t1 values (1), (2), (3);

create view v1 as select a from t1;

lock tables t1 read, v1 read;

prepare stmt from 'select * from v1';

execute stmt;
call p_verify_reprepare_count(0);

unlock tables;

alter view v1 as select 2*a from t1;

# Miss v1.
lock tables t1 read;

--error ER_TABLE_NOT_LOCKED
execute stmt;

unlock tables;

drop table t1;
drop view v1;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 18: VIEW -> VIEW (VIEW dependencies) transitions
--echo =====================================================================

--echo # 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;
execute stmt;
call p_verify_reprepare_count(0);
drop function f1;
create function f1() returns int return 2;
--echo # XXX: Used to be another manifestation of Bug#12093.
--echo # We only used to get a different error
--echo # message because the non-existing procedure error is masked
--echo # by the view.
execute stmt;
execute stmt;
call p_verify_reprepare_count(1);

--echo # 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;
delimiter |;
create function f1() returns int
begin
  declare x int;
  call p1(x);
  return x;
end|
delimiter ;|
create procedure p1(out x int) select max(a) from t1 into x;

prepare stmt from "select * from v1";
execute stmt;
execute stmt;
call p_verify_reprepare_count(0);
drop procedure p1;
create procedure p1(out x int) select max(a) from t2 into x;
--echo # XXX: used to be a bug. The prelocked list was not invalidated
--echo # and we kept opening table t1, whereas the procedure
--echo # is now referring to table t2
execute stmt;
call p_verify_reprepare_count(1);
flush table t1;
execute stmt;
call p_verify_reprepare_count(0);
execute stmt;

--echo # Test 18-c: dependent VIEW has changed

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;
execute stmt;
call p_verify_reprepare_count(0);
drop view v2;
create view v2 as select a from t2;
execute stmt;
execute stmt;
call p_verify_reprepare_count(1);
flush table t1;
execute stmt;
call p_verify_reprepare_count(0);
execute stmt;
--echo # Test 18-d: dependent TABLE has changed
drop view v2;
create table v2 as select * from t1;
execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);
drop table v2;
create table v2 (a int unique) as select * from t2;
execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

--echo # 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);
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);
select @message;
drop trigger v2_bi;
set @message=null;
set @var=9;
execute stmt using @var;
call p_verify_reprepare_count(1);
select @message;
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);
select @message;
select * from v1;

--echo # Cleanup

--disable_warnings
drop table if exists t1, t2, v1, v2;
drop view if exists v1, v2;
drop function f1;
drop procedure p1;
--enable_warnings
deallocate prepare stmt;

--echo =====================================================================
--echo Part 19: Special tables (INFORMATION_SCHEMA)
--echo =====================================================================

# Using a temporary table internally should not confuse the prepared
# statement code, and should not raise ER_PS_INVALIDATED errors
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;
execute stmt;

drop procedure p1;
create procedure p1() select "hi there, again";

execute stmt;
execute stmt;
call p_verify_reprepare_count(0);

drop procedure p1;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 20: Special tables (log tables)
--echo =====================================================================

prepare stmt from
 "select * from mysql.general_log where argument='IMPOSSIBLE QUERY STRING'";

--disable_result_log
execute stmt;
execute stmt;
execute stmt;
execute stmt;
--enable_result_log
call p_verify_reprepare_count(0);
deallocate prepare stmt;

--echo =====================================================================
--echo Part 21: Special tables (system tables)
--echo =====================================================================

prepare stmt from
 "select type, db, name from mysql.proc where name='p1'";

create procedure p1() select "hi there";

execute stmt;
execute stmt;

drop procedure p1;
create procedure p1() select "hi there, again";

execute stmt;
execute stmt;
call p_verify_reprepare_count(0);

drop procedure p1;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 22: Special tables (views temp tables)
--echo =====================================================================

create table t1 (a int);

create algorithm=temptable view v1 as select a*a as a2 from t1;

--echo # Using a temporary table internally should not confuse the prepared
--echo # statement code, and should not raise ER_PS_INVALIDATED errors
show create view v1;

prepare stmt from "select * from v1";

insert into t1 values (1), (2), (3);
execute stmt;
execute stmt;

insert into t1 values (4), (5), (6);
execute stmt;
execute stmt;
call p_verify_reprepare_count(0);

drop table t1;
drop view v1;

--echo =====================================================================
--echo Part 23: Special statements
--echo =====================================================================

--echo # 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);

--echo # 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);

drop table t1;

--echo # SQLCOM_REPAIR:

create table t1 (a int);

insert into t1 values (1), (2), (3);

prepare stmt from "repair table t1";

execute stmt;
execute stmt;

drop table t1;
create table t1 (a1 int, a2 int);
insert into t1 values (1, 10), (2, 20), (3, 30);

--echo # t1 has changed, and it's does not lead to reprepare
execute stmt;

alter table t1 add column b varchar(50) default NULL;
execute stmt;
call p_verify_reprepare_count(0);

alter table t1 drop column b;
execute stmt;
call p_verify_reprepare_count(0);

--echo # SQLCOM_ANALYZE:

prepare stmt from "analyze table t1";
execute stmt;

drop table t1;
create table t1 (a1 int, a2 int);
insert into t1 values (1, 10), (2, 20), (3, 30);
--echo # t1 has changed, and it's not a problem
execute stmt;

alter table t1 add column b varchar(50) default NULL;
execute stmt;

alter table t1 drop column b;
execute stmt;

call p_verify_reprepare_count(0);

--echo # SQLCOM_OPTIMIZE:

prepare stmt from "optimize table t1";
execute stmt;

drop table t1;
create table t1 (a1 int, a2 int);
insert into t1 values (1, 10), (2, 20), (3, 30);

--echo # t1 has changed, and it's not a problem
execute stmt;

alter table t1 add column b varchar(50) default NULL;
execute stmt;

alter table t1 drop column b;
execute stmt;
call p_verify_reprepare_count(0);

drop table t1;

--echo # SQLCOM_SHOW_CREATE_PROC:

prepare stmt from "show create procedure p1";
--error ER_SP_DOES_NOT_EXIST
execute stmt;
--error ER_SP_DOES_NOT_EXIST
execute stmt;

create procedure p1() begin end;

--disable_result_log
execute stmt;
execute stmt;
--enable_result_log

drop procedure p1;
create procedure p1(x int, y int) begin end;

--disable_result_log
execute stmt;
execute stmt;
--enable_result_log

drop procedure p1;

--error ER_SP_DOES_NOT_EXIST
execute stmt;
--error ER_SP_DOES_NOT_EXIST
execute stmt;
call p_verify_reprepare_count(0);

--echo # SQLCOM_SHOW_CREATE_FUNC:

prepare stmt from "show create function f1";
--error ER_SP_DOES_NOT_EXIST
execute stmt;
--error ER_SP_DOES_NOT_EXIST
execute stmt;

create function f1() returns int return 0;

--disable_result_log
execute stmt;
execute stmt;
--enable_result_log

drop function f1;
create function f1(x int, y int) returns int return x+y;

--disable_result_log
execute stmt;
execute stmt;
--enable_result_log

drop function f1;

--error ER_SP_DOES_NOT_EXIST
execute stmt;
--error ER_SP_DOES_NOT_EXIST
execute stmt;
call p_verify_reprepare_count(0);

--echo # SQLCOM_SHOW_CREATE_TRIGGER:

create table t1 (a int);

prepare stmt from "show create trigger t1_bi";
--error ER_TRG_DOES_NOT_EXIST
execute stmt;
--error ER_TRG_DOES_NOT_EXIST
execute stmt;

create trigger t1_bi before insert on t1 for each row set @message= "t1_bi";

--disable_result_log
execute stmt;
execute stmt;
--enable_result_log

drop trigger t1_bi;

create trigger t1_bi before insert on t1 for each row set @message= "t1_bi (2)";

--disable_result_log
execute stmt;
execute stmt;
--enable_result_log

drop trigger t1_bi;

--error ER_TRG_DOES_NOT_EXIST
execute stmt;
--error ER_TRG_DOES_NOT_EXIST
execute stmt;
call p_verify_reprepare_count(0);

drop table t1;
deallocate prepare stmt;

--echo =====================================================================
--echo Part 24: Testing the strength of TABLE_SHARE version
--echo =====================================================================

--echo # Test 24-a: number of columns

create table t1 (a int);

prepare stmt from "select a from t1";
execute stmt;
call p_verify_reprepare_count(0);

alter table t1 add column b varchar(50) default NULL;

execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

--echo # Test 24-b: column name

alter table t1 change b c int;
execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

--echo # Test 24-c: column type

alter table t1 change a a varchar(10);

execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

--echo # Test 24-d: column type length

alter table t1 change a a varchar(20);

execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

--echo # Test 24-e: column NULL property

alter table t1 change a a varchar(20) NOT NULL;

execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

--echo # Test 24-f: column DEFAULT

alter table t1 change c c int DEFAULT 20;

execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

--echo # Test 24-g: number of keys
create unique index t1_a_idx on t1 (a);

execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

--echo # Test 24-h: changing index uniqueness

drop index t1_a_idx on t1;
create index t1_a_idx on t1 (a);

execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

--echo # Cleanup
drop table t1;

deallocate prepare stmt;

--echo =====================================================================
--echo Testing reported bugs
--echo =====================================================================

--echo #
--echo # Bug#27420 A combination of PS and view operations cause
--echo # error + assertion on shutdown
--echo #

--disable_warnings
drop table if exists t_27420_100;
drop table if exists t_27420_101;
drop view if exists v_27420;
--enable_warnings

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;
call p_verify_reprepare_count(0);

drop view v_27420;
create table v_27420(X int, Y int);

execute stmt;
call p_verify_reprepare_count(1);

drop table v_27420;
# passes in 5.0, fails in 5.1, should pass
create table v_27420 (a int, b int, filler char(200));

execute stmt;
call p_verify_reprepare_count(1);

drop table t_27420_100;
drop table t_27420_101;
drop table v_27420;
deallocate prepare stmt;

--echo #
--echo # Bug#27430 Crash in subquery code when in PS and table DDL changed
--echo # after PREPARE
--echo #

--disable_warnings
drop table if exists t_27430_1;
drop table if exists t_27430_2;
--enable_warnings

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;
call p_verify_reprepare_count(0);

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;
call p_verify_reprepare_count(1);

drop table t_27430_1;
drop table t_27430_2;
deallocate prepare stmt;

--echo #
--echo # Bug#27690 Re-execution of prepared statement after table
--echo # was replaced with a view crashes
--echo #

--disable_warnings
drop table if exists t_27690_1;
drop view if exists v_27690_1;
drop table if exists v_27690_2;
--enable_warnings

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;
execute stmt;

drop table v_27690_1;

--error ER_NO_SUCH_TABLE
execute stmt;

--error ER_NO_SUCH_TABLE
execute stmt;
call p_verify_reprepare_count(0);

create view v_27690_1 as select A.a, A.b from t_27690_1 A, t_27690_1 B;

execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);

drop table t_27690_1;
drop view v_27690_1;
drop table v_27690_2;
deallocate prepare stmt;

--echo #=====================================================================
--echo #
--echo # Bug#21294 Executing a prepared statement that executes
--echo # a stored function which was recreat
--echo #

create function f1() returns int return 10;

prepare stmt from "select f1()";
execute stmt;

drop function f1;
create function f1() returns int return 10;

# might pass or fail, implementation dependent
execute stmt;

drop function f1;
create function f1() returns int return 20;

execute stmt;
call p_verify_reprepare_count(2);

drop function f1;
deallocate prepare stmt;

--echo #
--echo # Bug#12093 SP not found on second PS execution if another thread drops
--echo # other SP in between
--echo #
--disable_warnings
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;
--enable_warnings

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;

connect (con1,localhost,root,,);
connection default;

let $my_drop = drop function f_12093_unrelated;
--source include/ps_ddl_1.inc
#
let $my_drop = drop procedure p_12093_unrelated;
--source include/ps_ddl_1.inc
#
# A reprepare of stmt_sf and stmt_sp is necessary because there is no
# information about views within the table definition cache.
let $my_drop = drop view v_12093_unrelated;
--source include/ps_ddl_1.inc

call p_verify_reprepare_count(6);

disconnect con1;
drop table t_12093;
drop function f_12093;
drop procedure p_12093;
deallocate prepare stmt_sf;
deallocate prepare stmt_sp;

--echo =====================================================================
--echo Ensure that metadata validation is performed for every type of
--echo SQL statement where it is needed.
--echo =====================================================================

--echo #
--echo # SQLCOM_SELECT
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
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;
drop table t1;
deallocate prepare stmt;
call p_verify_reprepare_count(1);

--echo #
--echo # SQLCOM_CREATE_TABLE
--echo #

--disable_warnings
drop table if exists t1;
drop table if exists t2;
--enable_warnings
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);
# Base table with name of table to be created exists
--error ER_TABLE_EXISTS_ERROR
execute stmt;
call p_verify_reprepare_count(0);
--error ER_TABLE_EXISTS_ERROR
execute stmt;
call p_verify_reprepare_count(0);
drop table t2;
# Temporary table with name of table to be created exists
create temporary table t2 (a int);
# Temporary table and base table are not in the same name space.
execute stmt;
call p_verify_reprepare_count(0);
--error ER_TABLE_EXISTS_ERROR
execute stmt;
call p_verify_reprepare_count(0);
drop temporary table t2;
--error ER_TABLE_EXISTS_ERROR
execute stmt;
call p_verify_reprepare_count(0);
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
drop table t2;
# View with name of table to be created exists
# Attention:
#    We cannot print the error message because it contains a random filename.
#    Example: 1050: Table '<some_path>/var/tmp/#sql_6979_0' already exists
#    Therefore we mangle it via
#    "--error ER_TABLE_EXISTS_ERROR,9999" (9999 is currently not used)
#    to "Got one of the listed errors".
create view t2 as select 1;
--error ER_TABLE_EXISTS_ERROR,9999
execute stmt;
call p_verify_reprepare_count(0);
--error ER_TABLE_EXISTS_ERROR,9999
execute stmt;
call p_verify_reprepare_count(0);
drop view t2;
drop table t1;
# Table to be used recreated (drop,create) with different layout
create table t1 (x varchar(20));
execute stmt;
call p_verify_reprepare_count(1);
select * from t2;
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
drop table t2;
# Table to be used has a modified (alter table) layout
alter table t1 add column y decimal(10,3);
execute stmt;
call p_verify_reprepare_count(1);
select * from t2;
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
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);
execute stmt;
call p_verify_reprepare_count(1);
select * from t2;
execute stmt;
call p_verify_reprepare_count(0);
select * from t2;
drop table t2;
create temporary table t2 (a varchar(10));
execute stmt;
select * from t2;
call p_verify_reprepare_count(1);
drop table t1;
create table t1 (x int);
execute stmt;
call p_verify_reprepare_count(1);
execute stmt;
call p_verify_reprepare_count(0);
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);
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
drop table t2;
# Table to be used does not exist
drop table t1;
--error ER_NO_SUCH_TABLE
execute stmt;
call p_verify_reprepare_count(0);
--error ER_NO_SUCH_TABLE
execute stmt;
call p_verify_reprepare_count(0);
# Table to be used recreated (drop,create) with different layout
create table t1 (x char(17));
execute stmt;
call p_verify_reprepare_count(1);
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
drop table t2;
# Table to be used has a modified (alter table) layout
alter table t1 add column y time;
execute stmt;
call p_verify_reprepare_count(1);
select * from t2;
drop table t2;
execute stmt;
call p_verify_reprepare_count(0);
drop table t1;
drop table t2;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_UPDATE
--echo #

--disable_warnings
drop table if exists t1, t2;
--enable_warnings
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;

--echo #
--echo # SQLCOM_INSERT
--echo #

--disable_warnings
drop table if exists t1, t2;
--enable_warnings
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;

--echo #
--echo # SQLCOM_INSERT_SELECT
--echo #

--disable_warnings
drop table if exists t1, t2;
--enable_warnings
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;

--echo #
--echo # SQLCOM_REPLACE
--echo #

--disable_warnings
drop table if exists t1, t2;
--enable_warnings
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;

--echo #
--echo # SQLCOM_REPLACE_SELECT
--echo #

--disable_warnings
drop table if exists t1, t2;
--enable_warnings
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;

--echo #
--echo # SQLCOM_DELETE
--echo #

--disable_warnings
drop table if exists t1, t2;
--enable_warnings
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;

--echo #
--echo # SQLCOM_DELETE_MULTI
--echo #

--disable_warnings
drop table if exists t1, t2, t3;
--enable_warnings
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;

--echo #
--echo # SQLCOM_UPDATE_MULTI
--echo #

--disable_warnings
drop table if exists t1, t2, t3;
--enable_warnings
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;
--echo # Intermediate results: 8 SQLCOMs tested, 8 automatic reprepares
call p_verify_reprepare_count(8);

--echo #
--echo # SQLCOM_LOAD
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a varchar(20));
--error ER_UNSUPPORTED_PS
prepare stmt from "load data infile '../std_data_ln/words.dat' into table t1";
drop table t1;

--echo #
--echo # SQLCOM_SHOW_DATABASES
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show databases where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_TABLES
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show tables where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_FIELDS
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show fields from t1 where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_KEYS
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show keys from t1 where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_VARIABLES
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show variables where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_STATUS
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show status where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_ENGINE_STATUS, SQLCOM_SHOW_ENGINE_LOGS,
--echo # SQLCOM_SHOW_ENGINE_MUTEX, SQLCOM_SHOW_PROCESSLIST
--echo #

--echo # Currently can not have a where clause, need to be covered
--echo # with tests

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
--error ER_PARSE_ERROR
prepare stmt from "show engine all status where (1) in (select * from t1)";
--error ER_PARSE_ERROR
prepare stmt from "show engine all logs where (1) in (select * from t1)";
--error ER_PARSE_ERROR
prepare stmt from "show engine all mutex where (1) in (select * from t1)";
--error ER_PARSE_ERROR
prepare stmt from "show processlist where (1) in (select * from t1)";
drop table t1;

--echo #
--echo # SQLCOM_SHOW_CHARSETS
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show charset where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_COLLATIONS
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show collation where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_TABLE_STATUS
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show table status where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_TRIGGERS
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show triggers where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_OPEN_TABLES
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show open tables where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_STATUS_PROC
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show procedure status where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_STATUS_FUNC
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt from "show function status where (1) in (select * from t1)";
execute stmt;
drop table t1;
create table t1 (x int);
execute stmt;
drop table t1;
deallocate prepare stmt;

--echo #
--echo # SQLCOM_SHOW_EVENTS
--echo #
--echo #
--echo # Please see this test in ps.test, it requires not_embedded.inc
--echo #

--echo #
--echo # SQLCOM_SET_OPTION
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
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;

--echo #
--echo # SQLCOM_DO
--echo #

--disable_warnings
drop table if exists t1;
--enable_warnings
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;

--echo #
--echo # SQLCOM_CALL
--echo #

--disable_warnings
drop table if exists t1;
drop procedure if exists p1;
--enable_warnings
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;

--echo #
--echo # SQLCOM_CREATE_VIEW
--echo #

--disable_warnings
drop table if exists t1;
drop view if exists v1;
--enable_warnings
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;
--echo # Intermediate result: number of reprepares matches the number
--echo # of tests
call p_verify_reprepare_count(17);

--echo #
--echo # SQLCOM_ALTER_VIEW
--echo #

--disable_warnings
drop view if exists v1;
--enable_warnings
create view v1 as select 1;
--error ER_UNSUPPORTED_PS
prepare stmt from "alter view v1 as select 2";
drop view v1;

--echo # Cleanup
--echo #
--disable_warnings
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;
--enable_warnings

--echo #
--echo # Additional coverage for refactoring which was made as part of work
--echo # on bug '27480: Extend CREATE TEMPORARY TABLES privilege to allow
--echo # temp table operations'. 
--echo #
--echo # Check that we don't try to pre-open temporary tables for the elements
--echo # from prelocking list, as this can lead to unwarranted ER_CANT_REOPEN
--echo # errors.
--disable_warnings ONCE
DROP TABLE IF EXISTS t1, tm;
CREATE TABLE t1 (a INT);
CREATE TRIGGER t1_bi BEFORE INSERT ON t1 FOR EACH ROW
  SET @a:= (SELECT COUNT(*) FROM t1);
--echo # Prelocking list for the below statement should
--echo # contain t1 twice - once for the INSERT and once
--echo # SELECT from the trigger.
PREPARE stmt1 FROM 'INSERT INTO t1 VALUES (1)';
EXECUTE stmt1;
--echo # Create temporary table which will shadow t1.
CREATE TEMPORARY TABLE t1 (b int);
--echo # The below execution of statement should not fail with ER_CANT_REOPEN
--echo # error. Instead stmt1 should be auto-matically reprepared and succeed.
EXECUTE stmt1;
DEALLOCATE PREPARE stmt1;
DROP TEMPORARY TABLE t1;
DROP TABLE t1;
--echo #
--echo # Also check that we properly reset table list elements from UNION
--echo # clause of CREATE TABLE and ALTER TABLE statements.
--echo #
CREATE TEMPORARY TABLE t1 (i INT);
PREPARE stmt2 FROM 'CREATE TEMPORARY TABLE tm (i INT) ENGINE=MERGE UNION=(t1)';
EXECUTE stmt2;
DROP TEMPORARY TABLE tm;
EXECUTE stmt2;
DEALLOCATE PREPARE stmt2;
PREPARE stmt3 FROM 'ALTER TABLE tm UNION=(t1)';
EXECUTE stmt3;
EXECUTE stmt3;
DEALLOCATE PREPARE stmt3;
DROP TEMPORARY TABLES tm, t1;

--echo #
--echo # Start of 10.1 tests
--echo #

--echo #
--echo # MDEV-10702 Crash in SET STATEMENT FOR EXECUTE
--echo #
CREATE TABLE t1 (a INT);
PREPARE stmt FROM 'INSERT INTO t1 VALUES (@@max_sort_length)';
SET STATEMENT max_sort_length=2048 FOR EXECUTE stmt;
SELECT * FROM t1;
CREATE TRIGGER tr1 BEFORE INSERT ON t1 FOR EACH ROW SET NEW.a=NEW.a + 1;
SET STATEMENT max_sort_length=2048 FOR EXECUTE stmt;
SELECT * FROM t1;
DROP TRIGGER tr1;
SET STATEMENT max_sort_length=2048 FOR EXECUTE stmt;
SELECT * FROM t1;
DROP TABLE t1;

--echo #
--echo # End of 10.1 tests
--echo #