You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
480 lines
11 KiB
480 lines
11 KiB
drop temporary table if exists t1;
|
|
drop table if exists t1, t2;
|
|
drop procedure if exists p_verify_reprepare_count;
|
|
drop procedure if exists p1;
|
|
drop function if exists f1;
|
|
drop view if exists t1;
|
|
drop schema if exists mysqltest;
|
|
create procedure p_verify_reprepare_count(expected int)
|
|
begin
|
|
declare old_reprepare_count int default @reprepare_count;
|
|
select variable_value from
|
|
performance_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;
|
|
drop table if exists t1;
|
|
# Column added or dropped is not within the list of selected columns
|
|
# or table comment has changed.
|
|
# A reprepare is probably not needed.
|
|
create table t1 (a int, b int);
|
|
prepare stmt from "select a from t1";
|
|
execute stmt;
|
|
a
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
alter table t1 add column c int;
|
|
execute stmt;
|
|
a
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt;
|
|
a
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
alter table t1 drop column b;
|
|
execute stmt;
|
|
a
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt;
|
|
a
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
alter table t1 comment "My best table";
|
|
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;
|
|
# Selects using the table at various positions, inser,update ...
|
|
# + the table disappears
|
|
create table t1 (a int);
|
|
prepare stmt1 from "truncate t1";
|
|
prepare stmt2 from "select 1 as my_column from t1";
|
|
prepare stmt3 from "select 1 as my_column from (select * from t1) as t2";
|
|
prepare stmt4 from
|
|
"select 1 as my_column from (select 1) as t2 where exists (select 1 from t1)";
|
|
prepare stmt5 from "select * from (select 1 as b) as t2, t1";
|
|
prepare stmt6 from "select * from t1 union all select 1.5";
|
|
prepare stmt7 from "select 1 as my_column union all select 1 from t1";
|
|
prepare stmt8 from "insert into t1 values(1),(2)";
|
|
prepare stmt9 from "update t1 set a = 3 where a = 2";
|
|
prepare stmt10 from "delete from t1 where a = 1";
|
|
# Attention: Result logging is disabled.
|
|
execute stmt10;
|
|
execute stmt9;
|
|
execute stmt8;
|
|
execute stmt7;
|
|
execute stmt6;
|
|
execute stmt5;
|
|
execute stmt4;
|
|
execute stmt3;
|
|
execute stmt2;
|
|
execute stmt1;
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
drop table t1;
|
|
execute stmt10;
|
|
ERROR 42S02: Table 'test.t1' doesn't exist
|
|
execute stmt9;
|
|
ERROR 42S02: Table 'test.t1' doesn't exist
|
|
execute stmt8;
|
|
ERROR 42S02: Table 'test.t1' doesn't exist
|
|
execute stmt7;
|
|
ERROR 42S02: Table 'test.t1' doesn't exist
|
|
execute stmt6;
|
|
ERROR 42S02: Table 'test.t1' doesn't exist
|
|
execute stmt5;
|
|
ERROR 42S02: Table 'test.t1' doesn't exist
|
|
execute stmt4;
|
|
ERROR 42S02: Table 'test.t1' doesn't exist
|
|
execute stmt3;
|
|
ERROR 42S02: Table 'test.t1' doesn't exist
|
|
execute stmt2;
|
|
ERROR 42S02: Table 'test.t1' doesn't exist
|
|
execute stmt1;
|
|
ERROR 42S02: Table 'test.t1' doesn't exist
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
deallocate prepare stmt10;
|
|
deallocate prepare stmt9;
|
|
deallocate prepare stmt8;
|
|
deallocate prepare stmt7;
|
|
deallocate prepare stmt6;
|
|
deallocate prepare stmt5;
|
|
deallocate prepare stmt4;
|
|
deallocate prepare stmt3;
|
|
deallocate prepare stmt2;
|
|
deallocate prepare stmt1;
|
|
# Selects using the table at various positions, inser,update ...
|
|
# + layout change (drop column) which must cause a reprepare
|
|
create table t1 (a int, b int);
|
|
insert into t1 values(1,1),(2,2),(3,3);
|
|
create table t2 like t1;
|
|
insert into t1 values(2,2);
|
|
prepare stmt1 from "select a,b from t1";
|
|
prepare stmt2 from "select a,b from (select * from t1) as t1";
|
|
prepare stmt3 from "select * from t1 where a = 2 and b = 2";
|
|
prepare stmt4 from "select * from t2 where (a,b) in (select * from t1)";
|
|
prepare stmt5 from "select * from t1 union select * from t2";
|
|
prepare stmt6 from "select * from t1 union all select * from t2";
|
|
prepare stmt7 from "insert into t1 set a = 4, b = 4";
|
|
prepare stmt8 from "insert into t1 select * from t2";
|
|
# Attention: Result logging is disabled.
|
|
execute stmt8;
|
|
execute stmt7;
|
|
execute stmt6;
|
|
execute stmt5;
|
|
execute stmt4;
|
|
execute stmt3;
|
|
execute stmt2;
|
|
execute stmt1;
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
alter table t1 drop column b;
|
|
execute stmt8;
|
|
ERROR 21S01: Column count doesn't match value count at row 1
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt7;
|
|
ERROR 42S22: Unknown column 'b' in 'field list'
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt6;
|
|
ERROR 21000: The used SELECT statements have a different number of columns
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt5;
|
|
ERROR 21000: The used SELECT statements have a different number of columns
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt4;
|
|
ERROR 21000: Operand should contain 2 column(s)
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt3;
|
|
ERROR 42S22: Unknown column 'b' in 'where clause'
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt2;
|
|
ERROR 42S22: Unknown column 'b' in 'field list'
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt1;
|
|
ERROR 42S22: Unknown column 'b' in 'field list'
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt8;
|
|
ERROR 21S01: Column count doesn't match value count at row 1
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt7;
|
|
ERROR 42S22: Unknown column 'b' in 'field list'
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt6;
|
|
ERROR 21000: The used SELECT statements have a different number of columns
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt5;
|
|
ERROR 21000: The used SELECT statements have a different number of columns
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt4;
|
|
ERROR 21000: Operand should contain 2 column(s)
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt3;
|
|
ERROR 42S22: Unknown column 'b' in 'where clause'
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt2;
|
|
ERROR 42S22: Unknown column 'b' in 'field list'
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt1;
|
|
ERROR 42S22: Unknown column 'b' in 'field list'
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt8;
|
|
ERROR 21S01: Column count doesn't match value count at row 1
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
alter table t2 add column c int;
|
|
execute stmt8;
|
|
ERROR 21S01: Column count doesn't match value count at row 1
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
deallocate prepare stmt8;
|
|
deallocate prepare stmt7;
|
|
deallocate prepare stmt6;
|
|
deallocate prepare stmt5;
|
|
deallocate prepare stmt4;
|
|
deallocate prepare stmt3;
|
|
deallocate prepare stmt2;
|
|
deallocate prepare stmt1;
|
|
drop table t1;
|
|
drop table t2;
|
|
# select AVG(<col>) + optimizer uses index meets loss of the index
|
|
create table t1 (a int, b int, primary key(b),unique index t1_unq_idx(a));
|
|
insert into t1 set a = 0, b = 0;
|
|
insert into t1 select a + 1, b + 1 from t1;
|
|
insert into t1 select a + 2, b + 2 from t1;
|
|
insert into t1 select a + 4, b + 4 from t1;
|
|
insert into t1 select a + 8, b + 8 from t1;
|
|
# Optimizer strategy: Possible keys = NULL , Extra = Using index
|
|
prepare stmt from "select avg(a) from t1";
|
|
execute stmt;
|
|
avg(a)
|
|
7.5000
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
execute stmt;
|
|
avg(a)
|
|
7.5000
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
alter table t1 drop index t1_unq_idx;
|
|
# Optimizer strategy: Possible keys = NULL , Extra = NULL
|
|
execute stmt;
|
|
avg(a)
|
|
7.5000
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt;
|
|
avg(a)
|
|
7.5000
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
# select AVG(<col>) + optimizer uses table scan meets a new index
|
|
alter table t1 add unique index t1_unq_idx(a);
|
|
# Optimizer strategy: Possible keys = NULL , Extra = Using index
|
|
execute stmt;
|
|
avg(a)
|
|
7.5000
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt;
|
|
avg(a)
|
|
7.5000
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
deallocate prepare stmt;
|
|
drop table t1;
|
|
# table replaced by not updatable view - Insert
|
|
create table t1 (a int);
|
|
prepare stmt from "insert into t1 values(1)";
|
|
execute stmt;
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
drop table t1;
|
|
create view t1 as select 1;
|
|
execute stmt;
|
|
ERROR HY000: The target table t1 of the INSERT is not insertable-into
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
drop view t1;
|
|
create table t2 (a int);
|
|
create view t1 as select * from t2 with check option;
|
|
execute stmt;
|
|
call p_verify_reprepare_count(1);
|
|
SUCCESS
|
|
|
|
execute stmt;
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
select * from t1;
|
|
a
|
|
1
|
|
1
|
|
deallocate prepare stmt;
|
|
drop view t1;
|
|
drop table t2;
|
|
=====================================================================
|
|
Some freestyle tests
|
|
=====================================================================
|
|
create temporary table t1 as select 1 as a;
|
|
create procedure p1()
|
|
begin
|
|
drop temporary table t1;
|
|
end|
|
|
create function f1() returns int
|
|
begin
|
|
call p1();
|
|
return 1;
|
|
end|
|
|
prepare stmt from "select f1() as my_column, a from t1";
|
|
execute stmt;
|
|
ERROR HY000: Can't reopen table: 't1'
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
select * from t1;
|
|
a
|
|
1
|
|
prepare stmt from "select a, f1() as my_column from t1";
|
|
execute stmt;
|
|
ERROR HY000: Can't reopen table: 't1'
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
select * from t1;
|
|
a
|
|
1
|
|
prepare stmt from "select f1() as my_column, count(*) from t1";
|
|
execute stmt;
|
|
ERROR HY000: Can't reopen table: 't1'
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
select * from t1;
|
|
a
|
|
1
|
|
prepare stmt from "select count(*), f1() as my_column from t1";
|
|
execute stmt;
|
|
ERROR HY000: Can't reopen table: 't1'
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
select * from t1;
|
|
a
|
|
1
|
|
# Execute fails, no drop of temporary table
|
|
prepare stmt from "select 1 as my_column from (select 1) as t2
|
|
where exists (select f1() from t1)";
|
|
execute stmt;
|
|
my_column
|
|
1
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
execute stmt;
|
|
my_column
|
|
1
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
select * from t1;
|
|
a
|
|
1
|
|
# Execute drops temporary table
|
|
prepare stmt from "select f1()";
|
|
execute stmt;
|
|
f1()
|
|
1
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
execute stmt;
|
|
ERROR 42S02: Unknown table 'test.t1'
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
drop function f1;
|
|
drop procedure p1;
|
|
deallocate prepare stmt;
|
|
# Execute fails, temporary table is not replaced by another
|
|
create temporary table t1 as select 1 as a;
|
|
create procedure p1()
|
|
begin
|
|
drop temporary table t1;
|
|
create temporary table t1 as select 'abc' as a;
|
|
end|
|
|
create function f1() returns int
|
|
begin
|
|
call p1();
|
|
return 1;
|
|
end|
|
|
prepare stmt from "select count(*), f1() as my_column from t1";
|
|
execute stmt;
|
|
ERROR HY000: Can't reopen table: 't1'
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
select * from t1;
|
|
a
|
|
1
|
|
deallocate prepare stmt;
|
|
prepare stmt from "call p1";
|
|
execute stmt;
|
|
drop procedure p1;
|
|
create schema mysqltest;
|
|
create procedure mysqltest.p1()
|
|
begin
|
|
drop schema mysqltest;
|
|
create schema mysqltest;
|
|
end|
|
|
execute stmt;
|
|
ERROR 42000: PROCEDURE test.p1 does not exist
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
execute stmt;
|
|
ERROR 42000: PROCEDURE test.p1 does not exist
|
|
call p_verify_reprepare_count(0);
|
|
SUCCESS
|
|
|
|
deallocate prepare stmt;
|
|
drop schema mysqltest;
|
|
drop temporary table t1;
|
|
# Cleanup
|
|
#
|
|
drop temporary table if exists t1;
|
|
drop table if exists t1, t2;
|
|
drop procedure if exists p_verify_reprepare_count;
|
|
drop procedure if exists p1;
|
|
drop function if exists f1;
|
|
drop view if exists t1;
|
|
drop schema if exists mysqltest;
|
|
|