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			1192 lines
		
	
	
		
			37 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| #
 | |
| # Locking related tests which use DEBUG_SYNC facility.
 | |
| #
 | |
| --source include/have_debug_sync.inc
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| # We need InnoDB to be able use TL_WRITE_ALLOW_WRITE type of locks in our tests.
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| --source include/have_innodb.inc
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| # This test requires statement/mixed mode binary logging.
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| # Row-based mode puts weaker serializability requirements
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| # so weaker locks are acquired for it.
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| --source include/have_binlog_format_mixed_or_statement.inc
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| # Until bug#41971 'Thread state on embedded server is always "Writing to net"'
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| # is fixed this test can't be run on embedded version of server.
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| --source include/not_embedded.inc
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| 
 | |
| # Save the initial number of concurrent sessions.
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| --source include/count_sessions.inc
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| 
 | |
| 
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| --echo #
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| --echo # Test how we handle locking in various cases when
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| --echo # we read data from MyISAM tables.
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| --echo #
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| --echo # In this test we mostly check that the SQL-layer correctly
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| --echo # determines the type of thr_lock.c lock for a table being
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| --echo # read.
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| --echo # I.e. that it disallows concurrent inserts when the statement
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| --echo # is going to be written to the binary log and therefore
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| --echo # should be serialized, and allows concurrent inserts when
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| --echo # such serialization is not necessary (e.g. when 
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| --echo # the statement is not written to binary log).
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| --echo #
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| 
 | |
| --echo # Force concurrent inserts to be performed even if the table
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| --echo # has gaps. This allows to simplify clean up in scripts
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| --echo # used below (instead of backing up table being inserted
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| --echo # into and then restoring it from backup at the end of the
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| --echo # script we can simply delete rows which were inserted).
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| set @old_concurrent_insert= @@global.concurrent_insert;
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| set @@global.concurrent_insert= 2;
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| select @@global.concurrent_insert;
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| 
 | |
| --echo # Prepare playground by creating tables, views,
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| --echo # routines and triggers used in tests.
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| connect (con1, localhost, root,,);
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| connect (con2, localhost, root,,);
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| connection default;
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| --disable_warnings
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| drop table if exists t0, t1, t2, t3, t4, t5;
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| drop view if exists v1, v2;
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| drop procedure if exists p1;
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| drop procedure if exists p2;
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| drop procedure if exists p3;
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| drop function if exists f1;
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| drop function if exists f2;
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| drop function if exists f3;
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| drop function if exists f4;
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| drop function if exists f5;
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| drop function if exists f6;
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| drop function if exists f7;
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| drop function if exists f8;
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| drop function if exists f9;
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| drop function if exists f10;
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| drop function if exists f11;
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| drop function if exists f12;
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| drop function if exists f13;
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| drop function if exists f14;
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| drop function if exists f15;
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| drop function if exists f16;
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| drop function if exists f17;
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| --enable_warnings
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| create table t1 (i int primary key);
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| insert into t1 values (1), (2), (3), (4), (5);
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| create table t2 (j int primary key);
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| insert into t2 values (1), (2), (3), (4), (5);
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| create table t3 (k int primary key);
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| insert into t3 values (1), (2), (3);
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| create table t4 (l int primary key);
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| insert into t4 values (1);
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| create table t5 (l int primary key);
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| insert into t5 values (1);
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| create view v1 as select i from t1;
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| create view v2 as select j from t2 where j in (select i from t1);
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| create procedure p1(k int) insert into t2 values (k);
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| delimiter |;
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| create function f1() returns int
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| begin
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|   declare j int;
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|   select i from t1 where i = 1 into j;
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|   return j;
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| end|
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| create function f2() returns int
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| begin
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|   declare k int;
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|   select i from t1 where i = 1 into k;
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|   insert into t2 values (k + 5);
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|   return 0;
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| end|
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| create function f3() returns int
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| begin
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|   return (select i from t1 where i = 3);
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| end|
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| create function f4() returns int
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| begin
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|   if (select i from t1 where i = 3) then
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|     return 1;
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|   else
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|     return 0;
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|   end if;
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| end|
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| create function f5() returns int
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| begin
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|   insert into t2 values ((select i from t1 where i = 1) + 5);
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|   return 0;
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| end|
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| create function f6() returns int
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| begin
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|   declare k int;
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|   select i from v1 where i = 1 into k;
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|   return k;
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| end|
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| create function f7() returns int
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| begin
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|   declare k int;
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|   select j from v2 where j = 1 into k;
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|   return k;
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| end|
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| create function f8() returns int
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| begin
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|   declare k int;
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|   select i from v1 where i = 1 into k;
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|   insert into t2 values (k+5);
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|   return k;
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| end|
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| create function f9() returns int
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| begin
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|   update v2 set j=j+10 where j=1;
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|   return 1;
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| end|
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| create function f10() returns int
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| begin
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|   return f1();
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| end|
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| create function f11() returns int
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| begin
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|   declare k int;
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|   set k= f1();
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|   insert into t2 values (k+5);
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|   return k;
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| end|
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| create function f12(p int) returns int
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| begin
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|   insert into t2 values (p);
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|   return p;
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| end|
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| create function f13(p int) returns int
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| begin
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|   return p;
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| end|
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| create procedure p2(inout p int)
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| begin
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|   select i from t1 where i = 1 into p;
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| end|
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| create function f14() returns int
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| begin
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|   declare k int;
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|   call p2(k);
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|   insert into t2 values (k+5);
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|   return k;
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| end|
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| create function f15() returns int
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| begin
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|   declare k int;
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|   call p2(k);
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|   return k;
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| end|
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| create function f16() returns int
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| begin
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|   create temporary table if not exists temp1 (a int);
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|   insert into temp1 select * from t1;
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|   drop temporary table temp1;
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|   return 1;
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| end|
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| create function f17() returns int
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| begin
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|   declare j int;
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|   select i from t1 where i = 1 into j;
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|   call p3;
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|   return 1;
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| end|
 | |
| create procedure p3()
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| begin
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|   create temporary table if not exists temp1 (a int);
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|   insert into temp1 select * from t1;
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|   drop temporary table temp1;
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| end|
 | |
| create trigger t4_bi before insert on t4 for each row
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| begin
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|   declare k int;
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|   select i from t1 where i=1 into k;
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|   set new.l= k+1;
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| end|
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| create trigger t4_bu before update on t4 for each row
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| begin
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|   if (select i from t1 where i=1) then
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|     set new.l= 2;
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|   end if;
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| end|
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| create trigger t4_bd before delete on t4 for each row
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| begin
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|   if !(select i from v1 where i=1) then
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|     signal sqlstate '45000';
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|   end if;
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| end|
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| create trigger t5_bi before insert on t5 for each row
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| begin
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|   set new.l= f1()+1;
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| end|
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| create trigger t5_bu before update on t5 for each row
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| begin
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|   declare j int;
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|   call p2(j);
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|   set new.l= j + 1;
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| end|
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| delimiter ;|
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| 
 | |
| --echo #
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| --echo # Set common variables to be used by the scripts
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| --echo # called below.
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| --echo #
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| let $con_aux1= con1; 
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| let $con_aux2= con2; 
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| let $table= t1;
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| 
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| --echo # Switch to connection 'con1'.
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| connection con1;
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| --echo # Cache all functions used in the tests below so statements
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| --echo # calling them won't need to open and lock mysql.proc table
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| --echo # and we can assume that each statement locks its tables
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| --echo # once during its execution.
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| --disable_result_log
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| show create procedure p1;
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| show create procedure p2;
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| show create procedure p3;
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| show create function f1;
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| show create function f2;
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| show create function f3;
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| show create function f4;
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| show create function f5;
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| show create function f6;
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| show create function f7;
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| show create function f8;
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| show create function f9;
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| show create function f10;
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| show create function f11;
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| show create function f12;
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| show create function f13;
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| show create function f14;
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| show create function f15;
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| show create function f16;
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| show create function f17;
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| --enable_result_log
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| --echo # Switch back to connection 'default'.
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| connection default;
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| 
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| --echo #
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| --echo # 1. Statements that read tables and do not use subqueries.
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| --echo #
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| 
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| --echo #
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| --echo # 1.1 Simple SELECT statement.
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| --echo #
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| --echo # No locks are necessary as this statement won't be written
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| --echo # to the binary log and thanks to how MyISAM works SELECT
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| --echo # will see version of the table prior to concurrent insert.
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| let $statement= select * from t1;
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| let $restore_table= ;
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| --source include/check_concurrent_insert.inc
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| 
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| --echo #
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| --echo # 1.2 Multi-UPDATE statement.
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| --echo #
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| --echo # Has to take shared locks on rows in the table being read as this
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| --echo # statement will be written to the binary log and therefore should
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| --echo # be serialized with concurrent statements.
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| let $statement= update t2, t1 set j= j - 1 where i = j;
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| let $restore_table= t2;
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| --source include/check_no_concurrent_insert.inc
 | |
| 
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| --echo #
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| --echo # 1.3 Multi-DELETE statement.
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| --echo #
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| --echo # The above is true for this statement as well.
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| let $statement= delete t2 from t1, t2 where i = j;
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| let $restore_table= t2;
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| --source include/check_no_concurrent_insert.inc
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| 
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| --echo #
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| --echo # 1.4 DESCRIBE statement.
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| --echo #
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| --echo # This statement does not really read data from the
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| --echo # target table and thus does not take any lock on it.
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| --echo # We check this for completeness of coverage.
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| lock table t1 write;
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| --echo # Switching to connection 'con1'.
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| connection con1;
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| --echo # This statement should not be blocked.
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| --disable_result_log
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| describe t1;
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| --enable_result_log
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| --echo # Switching to connection 'default'.
 | |
| connection default;
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| unlock tables;
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| 
 | |
| --echo #
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| --echo # 1.5 SHOW statements.
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| --echo # 
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| --echo # The above is true for SHOW statements as well.
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| lock table t1 write;
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| --echo # Switching to connection 'con1'.
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| connection con1;
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| --echo # These statements should not be blocked.
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| # The below test for SHOW CREATE TABLE is disabled until bug 52593
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| # "SHOW CREATE TABLE is blocked if table is locked for write by another
 | |
| # connection" is fixed.
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| --disable_parsing
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| show create table t1;
 | |
| --enable_parsing
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| --disable_result_log
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| show keys from t1;
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| --enable_result_log
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| --echo # Switching to connection 'default'.
 | |
| connection default;
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| unlock tables;
 | |
| 
 | |
| 
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| --echo #
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| --echo # 2. Statements which read tables through subqueries.
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| --echo #
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| 
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| --echo #
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| --echo # 2.1 CALL with a subquery.
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| --echo # 
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| --echo # A strong lock is not necessary as this statement is not
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| --echo # written to the binary log as a whole (it is written
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| --echo # statement-by-statement).
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| let $statement= call p1((select i + 5 from t1 where i = 1));
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| let $restore_table= t2;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
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| --echo # 2.2 CREATE TABLE with a subquery.
 | |
| --echo #
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| --echo # Has to take a strong lock on the table being read as
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| --echo # this statement is written to the binary log and therefore
 | |
| --echo # should be serialized with concurrent statements.
 | |
| let $statement= create table t0 select * from t1;
 | |
| let $restore_table= ;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| drop table t0;
 | |
| let $statement= create table t0 select j from t2 where j in (select i from t1);
 | |
| let $restore_table= ;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| drop table t0;
 | |
| 
 | |
| --echo #
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| --echo # 2.3 DELETE with a subquery.
 | |
| --echo #
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| --echo # The above is true for this statement as well.
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| let $statement= delete from t2 where j in (select i from t1);
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
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| --echo # 2.4 MULTI-DELETE with a subquery.
 | |
| --echo #
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| --echo # Same is true for this statement as well.
 | |
| let $statement= delete t2 from t3, t2 where k = j and j in (select i from t1);
 | |
| let $restore_table= t2;
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| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| 
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| --echo #
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| --echo # 2.5 DO with a subquery.
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| --echo #
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| --echo # A strong lock is not necessary as it is not logged.
 | |
| let $statement= do (select i from t1 where i = 1);
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
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| --echo # 2.6 INSERT with a subquery.
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| --echo #
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| --echo # Has to take a strong lock on the table being read as
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| --echo # this statement is written to the binary log and therefore
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| --echo # should be serialized with concurrent inserts.
 | |
| let $statement= insert into t2 select i+5 from t1;
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| let $statement= insert into t2 values ((select i+5 from t1 where i = 4));
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 2.7 LOAD DATA with a subquery.
 | |
| --echo # 
 | |
| --echo # The above is true for this statement as well.
 | |
| let $statement= load data infile '../../std_data/rpl_loaddata.dat' into table t2 (@a, @b) set j= @b + (select i from t1 where i = 1);
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 2.8 REPLACE with a subquery.
 | |
| --echo # 
 | |
| --echo # Same is true for this statement as well.
 | |
| let $statement= replace into t2 select i+5 from t1;
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| let $statement= replace into t2 values ((select i+5 from t1 where i = 4));
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 2.9 SELECT with a subquery.
 | |
| --echo #
 | |
| --echo # Strong locks are not necessary as this statement is not written
 | |
| --echo # to the binary log and thanks to how MyISAM works this statement
 | |
| --echo # sees a version of the table prior to the concurrent insert.
 | |
| let $statement= select * from t2 where j in (select i from t1);
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 2.10 SET with a subquery.
 | |
| --echo #
 | |
| --echo # The same is true for this statement as well.
 | |
| let $statement= set @a:= (select i from t1 where i = 1);
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
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| --echo # 2.11 SHOW with a subquery.
 | |
| --echo # 
 | |
| --echo # And for this statement too.
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| let $statement= show tables from test where Tables_in_test = 't2' and (select i from t1 where i = 1);
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| let $statement= show columns from t2 where (select i from t1 where i = 1);
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 2.12 UPDATE with a subquery.
 | |
| --echo #
 | |
| --echo # Has to take a strong lock on the table being read as
 | |
| --echo # this statement is written to the binary log and therefore
 | |
| --echo # should be serialized with concurrent inserts.
 | |
| let $statement= update t2 set j= j-10 where j in (select i from t1);
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 2.13 MULTI-UPDATE with a subquery.
 | |
| --echo #
 | |
| --echo # Same is true for this statement as well.
 | |
| let $statement= update t2, t3 set j= j -10 where j=k and j in (select i from t1);
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| 
 | |
| --echo #
 | |
| --echo # 3. Statements which read tables through a view.
 | |
| --echo #
 | |
| 
 | |
| --echo #
 | |
| --echo # 3.1 SELECT statement which uses some table through a view.
 | |
| --echo #
 | |
| --echo # Since this statement is not written to the binary log and
 | |
| --echo # an old version of the table is accessible thanks to how MyISAM
 | |
| --echo # handles concurrent insert, no locking is necessary.
 | |
| let $statement= select * from v1;
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| let $statement= select * from v2;
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| let $statement= select * from t2 where j in (select i from v1);
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| let $statement= select * from t3 where k in (select j from v2);
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 3.2 Statements which modify a table and use views.
 | |
| --echo #
 | |
| --echo # Since such statements are going to be written to the binary
 | |
| --echo # log they need to be serialized against concurrent statements
 | |
| --echo # and therefore should take strong locks on the data read.
 | |
| let $statement= update t2 set j= j-10 where j in (select i from v1);
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| let $statement= update t3 set k= k-10 where k in (select j from v2);
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| let $statement= update t2, v1 set j= j-10 where j = i;
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| let $statement= update v2 set j= j-10 where j = 3;
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| 
 | |
| --echo #
 | |
| --echo # 4. Statements which read tables through stored functions.
 | |
| --echo #
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.1 SELECT/SET with a stored function which does not 
 | |
| --echo #     modify data and uses SELECT in its turn.
 | |
| --echo #
 | |
| --echo # There is no need to take strong locks on the table
 | |
| --echo # being selected from in SF as the call to such function
 | |
| --echo # won't get into the binary log.
 | |
| let $statement= select f1();
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| let $statement= set @a:= f1();
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.2 INSERT (or other statement which modifies data) with
 | |
| --echo #     a stored function which does not modify data and uses
 | |
| --echo #     SELECT.
 | |
| --echo #
 | |
| --echo # Since such statement is written to the binary log it should
 | |
| --echo # be serialized with concurrent statements affecting the data
 | |
| --echo # it uses. Therefore it should take strong lock on the data
 | |
| --echo # it reads.
 | |
| let $statement= insert into t2 values (f1() + 5);
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.3 SELECT/SET with a stored function which
 | |
| --echo #     reads and modifies data.
 | |
| --echo #
 | |
| --echo # Since a call to such function is written to the binary log,
 | |
| --echo # it should be serialized with concurrent statements affecting
 | |
| --echo # the data it uses. Hence, a strong lock on the data read
 | |
| --echo # should be taken.
 | |
| let $statement= select f2();
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| let $statement= set @a:= f2();
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.4. SELECT/SET with a stored function which does not
 | |
| --echo #      modify data and reads a table through subselect
 | |
| --echo #      in a control construct.
 | |
| --echo #
 | |
| --echo # Call to this function won't get to the
 | |
| --echo # binary log and thus no strong lock is needed.
 | |
| let $statement= select f3();
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| let $statement= set @a:= f3();
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| let $statement= select f4();
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| let $statement= set @a:= f4();
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.5. INSERT (or other statement which modifies data) with
 | |
| --echo #      a stored function which does not modify data and reads
 | |
| --echo #      the table through a subselect in one of its control
 | |
| --echo #      constructs.
 | |
| --echo #
 | |
| --echo # Since such statement is written to the binary log it should
 | |
| --echo # be serialized with concurrent statements affecting data it
 | |
| --echo # uses. Therefore it should take a strong lock on the data
 | |
| --echo # it reads.
 | |
| let $statement= insert into t2 values (f3() + 5);
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| let $statement= insert into t2 values (f4() + 6);
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.6 SELECT/SET which uses a stored function with
 | |
| --echo #      DML which reads a table via a subquery.
 | |
| --echo #
 | |
| --echo # Since call to such function is written to the binary log
 | |
| --echo # it should be serialized with concurrent statements.
 | |
| --echo # Hence reads should take a strong lock.
 | |
| let $statement= select f5();
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| let $statement= set @a:= f5();
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.7 SELECT/SET which uses a stored function which
 | |
| --echo #     doesn't modify data and reads tables through
 | |
| --echo #     a view.
 | |
| --echo #
 | |
| --echo # Calls to such functions won't get into
 | |
| --echo # the binary log and thus don't need strong
 | |
| --echo # locks.
 | |
| let $statement= select f6();
 | |
| let $restore_table= t2;
 | |
| --source include/check_concurrent_insert.inc
 | |
| let $statement= set @a:= f6();
 | |
| let $restore_table= t2;
 | |
| --source include/check_concurrent_insert.inc
 | |
| let $statement= select f7();
 | |
| let $restore_table= t2;
 | |
| --source include/check_concurrent_insert.inc
 | |
| let $statement= set @a:= f7();
 | |
| let $restore_table= t2;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.8 INSERT which uses stored function which
 | |
| --echo #     doesn't modify data and reads a table
 | |
| --echo #     through a view.
 | |
| --echo #
 | |
| --echo # Since such statement is written to the binary log and
 | |
| --echo # should be serialized with concurrent statements affecting
 | |
| --echo # the data it uses. Therefore it should take a strong lock on
 | |
| --echo # the table it reads.
 | |
| let $statement= insert into t3 values (f6() + 5);
 | |
| let $restore_table= t3;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| let $statement= insert into t3 values (f7() + 5);
 | |
| let $restore_table= t3;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.9 SELECT which uses a stored function which
 | |
| --echo #     modifies data and reads tables through a view.
 | |
| --echo #
 | |
| --echo # Since a call to such function is written to the binary log
 | |
| --echo # it should be serialized with concurrent statements.
 | |
| --echo # Hence, reads should take strong locks.
 | |
| let $statement= select f8();
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| let $statement= select f9();
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.10 SELECT which uses a stored function which doesn't modify
 | |
| --echo #      data and reads a table indirectly, by calling another
 | |
| --echo #      function.
 | |
| --echo #
 | |
| --echo # Calls to such functions won't get into the binary
 | |
| --echo # log and thus don't need to acquire strong locks.
 | |
| let $statement= select f10();
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.11 INSERT which uses a stored function which doesn't modify
 | |
| --echo #      data and reads a table indirectly, by calling another
 | |
| --echo #      function. 
 | |
| --echo #
 | |
| --echo # Since such statement is written to the binary log, it should
 | |
| --echo # be serialized with concurrent statements affecting the data it
 | |
| --echo # uses. Therefore it should take strong locks on data it reads.
 | |
| let $statement= insert into t2 values (f10() + 5);
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.12 SELECT which uses a stored function which modifies
 | |
| --echo #      data and reads a table indirectly, by calling another
 | |
| --echo #      function. 
 | |
| --echo #
 | |
| --echo # Since a call to such function is written to the binary log
 | |
| --echo # it should be serialized from concurrent statements.
 | |
| --echo # Hence, read should take a strong lock.
 | |
| let $statement= select f11();
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.13 SELECT that reads a table through a subquery passed
 | |
| --echo #      as a parameter to a stored function which modifies
 | |
| --echo #      data.
 | |
| --echo #
 | |
| --echo # Even though a call to this function is written to the
 | |
| --echo # binary log, values of its parameters are written as literals.
 | |
| --echo # So there is no need to acquire strong locks for tables used in
 | |
| --echo # the subquery.
 | |
| let $statement= select f12((select i+10 from t1 where i=1));
 | |
| let $restore_table= t2;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.14 INSERT that reads a table via a subquery passed
 | |
| --echo #      as a parameter to a stored function which doesn't
 | |
| --echo #      modify data.
 | |
| --echo #
 | |
| --echo # Since this statement is written to the binary log it should
 | |
| --echo # be serialized with concurrent statements affecting the data it
 | |
| --echo # uses. Therefore it should take strong locks on the data it reads.
 | |
| let $statement= insert into t2 values (f13((select i+10 from t1 where i=1)));
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.15 SELECT/SET with a stored function which 
 | |
| --echo #      inserts data into a temporary table using
 | |
| --echo #      SELECT on t1.
 | |
| --echo #
 | |
| --echo # Since this statement is written to the binary log it should
 | |
| --echo # be serialized with concurrent statements affecting the data it
 | |
| --echo # uses. Therefore it should take strong locks on the data it reads.
 | |
| let $statement= select f16();
 | |
| let $restore_table= ;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| let $statement= set @a:= f16();
 | |
| let $restore_table= ;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 4.16 SELECT/SET with a stored function which call procedure
 | |
| --echo #      which inserts data into a temporary table using
 | |
| --echo #      SELECT on t1.
 | |
| --echo #
 | |
| --echo # Since this statement is written to the binary log it should
 | |
| --echo # be serialized with concurrent statements affecting the data it
 | |
| --echo # uses. Therefore it should take strong locks on the data it reads.
 | |
| let $statement= select f17();
 | |
| let $restore_table= ;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| let $statement= set @a:= f17();
 | |
| let $restore_table= ;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| 
 | |
| --echo #
 | |
| --echo # 5. Statements that read tables through stored procedures.
 | |
| --echo #
 | |
| 
 | |
| --echo #
 | |
| --echo # 5.1 CALL statement which reads a table via SELECT.
 | |
| --echo #
 | |
| --echo # Since neither this statement nor its components are
 | |
| --echo # written to the binary log, there is no need to take
 | |
| --echo # strong locks on the data it reads.
 | |
| let $statement= call p2(@a);
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 5.2 Function that modifies data and uses CALL, 
 | |
| --echo #     which reads a table through SELECT.
 | |
| --echo #
 | |
| --echo # Since a call to such function is written to the binary
 | |
| --echo # log, it should be serialized with concurrent statements.
 | |
| --echo # Hence, in this case reads should take strong locks on data.
 | |
| let $statement= select f14();
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 5.3 SELECT that calls a function that doesn't modify data and
 | |
| --echo #     uses a CALL statement that reads a table via SELECT.
 | |
| --echo #
 | |
| --echo # Calls to such functions won't get into the binary
 | |
| --echo # log and thus don't need to acquire strong locks.
 | |
| let $statement= select f15();
 | |
| let $restore_table= ;
 | |
| --source include/check_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 5.4 INSERT which calls function which doesn't modify data and
 | |
| --echo #     uses CALL statement which reads table through SELECT.
 | |
| --echo #
 | |
| --echo # Since such statement is written to the binary log it should
 | |
| --echo # be serialized with concurrent statements affecting data it
 | |
| --echo # uses. Therefore it should take strong locks on data it reads.
 | |
| let $statement= insert into t2 values (f15()+5);
 | |
| let $restore_table= t2;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| 
 | |
| --echo #
 | |
| --echo # 6. Statements that use triggers.
 | |
| --echo #
 | |
| 
 | |
| --echo #
 | |
| --echo # 6.1 Statement invoking a trigger that reads table via SELECT.
 | |
| --echo #
 | |
| --echo # Since this statement is written to the binary log it should
 | |
| --echo # be serialized with concurrent statements affecting the data
 | |
| --echo # it uses. Therefore, it should take strong locks on the data
 | |
| --echo # it reads.
 | |
| let $statement= insert into t4 values (2);
 | |
| let $restore_table= t4;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 6.2 Statement invoking a trigger that reads table through
 | |
| --echo #     a subquery in a control construct.
 | |
| --echo #
 | |
| --echo # The above is true for this statement as well.
 | |
| let $statement= update t4 set l= 2 where l = 1;
 | |
| let $restore_table= t4;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 6.3 Statement invoking a trigger that reads a table through
 | |
| --echo #     a view.
 | |
| --echo #
 | |
| --echo # And for this statement.
 | |
| let $statement= delete from t4 where l = 1;
 | |
| let $restore_table= t4;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 6.4 Statement invoking a trigger that reads a table through
 | |
| --echo #     a stored function.
 | |
| --echo #
 | |
| --echo # And for this statement.
 | |
| let $statement= insert into t5 values (2);
 | |
| let $restore_table= t5;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo #
 | |
| --echo # 6.5 Statement invoking a trigger that reads a table through
 | |
| --echo #     stored procedure.
 | |
| --echo #
 | |
| --echo # And for this statement.
 | |
| let $statement= update t5 set l= 2 where l = 1;
 | |
| let $restore_table= t5;
 | |
| --source include/check_no_concurrent_insert.inc
 | |
| 
 | |
| --echo # Clean-up.
 | |
| drop function f1;
 | |
| drop function f2;
 | |
| drop function f3;
 | |
| drop function f4;
 | |
| drop function f5;
 | |
| drop function f6;
 | |
| drop function f7;
 | |
| drop function f8;
 | |
| drop function f9;
 | |
| drop function f10;
 | |
| drop function f11;
 | |
| drop function f12;
 | |
| drop function f13;
 | |
| drop function f14;
 | |
| drop function f15;
 | |
| drop function f16;
 | |
| drop function f17;
 | |
| drop view v1, v2;
 | |
| drop procedure p1;
 | |
| drop procedure p2;
 | |
| drop procedure p3;
 | |
| drop table t1, t2, t3, t4, t5;
 | |
| 
 | |
| disconnect con1;
 | |
| disconnect con2;
 | |
| 
 | |
| set @@global.concurrent_insert= @old_concurrent_insert;
 | |
| 
 | |
| 
 | |
| --echo #
 | |
| --echo # Test for bug #45143 "All connections hang on concurrent ALTER TABLE".
 | |
| --echo #
 | |
| --echo # Concurrent execution of statements which required weak write lock
 | |
| --echo # (TL_WRITE_ALLOW_WRITE) on several instances of the same table and
 | |
| --echo # statements which tried to acquire stronger write lock (TL_WRITE,
 | |
| --echo # TL_WRITE_ALLOW_READ) on this table might have led to deadlock.
 | |
| #
 | |
| # Suppress warnings for INSERTs that use get_lock().
 | |
| #
 | |
| disable_query_log;
 | |
| call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
 | |
| enable_query_log;
 | |
| 
 | |
| --disable_warnings
 | |
| drop table if exists t1;
 | |
| drop view if exists v1;
 | |
| --enable_warnings
 | |
| --echo # Create auxiliary connections used through the test.
 | |
| connect (con_bug45143_1,localhost,root,,test,,);
 | |
| connect (con_bug45143_3,localhost,root,,test,,);
 | |
| connect (con_bug45143_2,localhost,root,,test,,);
 | |
| connection default;
 | |
| --echo # Reset DEBUG_SYNC facility before using it.
 | |
| set debug_sync= 'RESET';
 | |
| --echo # Turn off logging so calls to locking subsystem performed
 | |
| --echo # for general_log table won't interfere with our test.
 | |
| set @old_general_log = @@global.general_log;
 | |
| set @@global.general_log= OFF;
 | |
| 
 | |
| create table t1 (i int) engine=InnoDB;
 | |
| --echo # We have to use view in order to make LOCK TABLES avoid
 | |
| --echo # acquiring SNRW metadata lock on table.
 | |
| create view v1 as select * from t1;
 | |
| insert into t1 values (1);
 | |
| --echo # Prepare user lock which will be used for resuming execution of
 | |
| --echo # the first statement after it acquires TL_WRITE_ALLOW_WRITE lock.
 | |
| select get_lock("lock_bug45143_wait", 0);
 | |
| 
 | |
| --echo # Switch to connection 'con_bug45143_1'.
 | |
| connection con_bug45143_1;
 | |
| --echo # Sending:
 | |
| --send insert into t1 values (get_lock("lock_bug45143_wait", 100));
 | |
| 
 | |
| --echo # Switch to connection 'con_bug45143_2'.
 | |
| connection con_bug45143_2;
 | |
| --echo # Wait until the above INSERT takes TL_WRITE_ALLOW_WRITE lock on 't1'
 | |
| --echo # and then gets blocked on user lock 'lock_bug45143_wait'.
 | |
| let $wait_condition= select count(*)= 1 from information_schema.processlist
 | |
|                        where state= 'User lock' and
 | |
|                              info='insert into t1 values (get_lock("lock_bug45143_wait", 100))';
 | |
| --source include/wait_condition.inc
 | |
| --echo # Ensure that upcoming SELECT waits after acquiring TL_WRITE_ALLOW_WRITE
 | |
| --echo # lock for the first instance of 't1'.
 | |
| set debug_sync='thr_multi_lock_after_thr_lock SIGNAL parked WAIT_FOR go';
 | |
| --echo # Sending:
 | |
| --send select count(*) > 0 from t1 as a, t1 as b for update;
 | |
| 
 | |
| --echo # Switch to connection 'con_bug45143_3'.
 | |
| connection con_bug45143_3;
 | |
| --echo # Wait until the above SELECT ... FOR UPDATE is blocked after
 | |
| --echo # acquiring lock for the the first instance of 't1'.
 | |
| set debug_sync= 'now WAIT_FOR parked';
 | |
| --echo # Send LOCK TABLE statement which will try to get TL_WRITE lock on 't1':
 | |
| --send lock table v1 write;
 | |
| 
 | |
| --echo # Switch to connection 'default'.
 | |
| connection default;
 | |
| --echo # Wait until this LOCK TABLES statement starts waiting for table lock.
 | |
| let $wait_condition= select count(*)= 1 from information_schema.processlist
 | |
|                        where state= 'Waiting for table level lock' and
 | |
|                              info='lock table v1 write';
 | |
| --source include/wait_condition.inc
 | |
| --echo # Allow SELECT ... FOR UPDATE to resume.
 | |
| --echo # Since it already has TL_WRITE_ALLOW_WRITE lock on the first instance
 | |
| --echo # of 't1' it should be able to get lock on the second instance without
 | |
| --echo # waiting, even although there is another thread which has such lock
 | |
| --echo # on this table and also there is a thread waiting for a TL_WRITE on it.
 | |
| set debug_sync= 'now SIGNAL go';
 | |
| 
 | |
| --echo # Switch to connection 'con_bug45143_2'.
 | |
| connection con_bug45143_2;
 | |
| --echo # Reap SELECT ... FOR UPDATE
 | |
| --reap
 | |
| 
 | |
| --echo # Switch to connection 'default'.
 | |
| connection default;
 | |
| --echo # Resume execution of the INSERT statement.
 | |
| select release_lock("lock_bug45143_wait");
 | |
| 
 | |
| --echo # Switch to connection 'con_bug45143_1'.
 | |
| connection con_bug45143_1;
 | |
| --echo # Reap INSERT statement.
 | |
| --echo # In Statement and Mixed replication mode we get here "Unsafe 
 | |
| --echo # for binlog" warnings. In row mode there are no warnings.
 | |
| --echo # Hide the discrepancy.
 | |
| --disable_warnings
 | |
| --reap
 | |
| --enable_warnings
 | |
| 
 | |
| 
 | |
| --echo # Switch to connection 'con_bug45143_3'.
 | |
| connection con_bug45143_3;
 | |
| --echo # Reap LOCK TABLES statement.
 | |
| --reap
 | |
| unlock tables;
 | |
| 
 | |
| --echo # Switch to connection 'default'.
 | |
| connection default;
 | |
| --echo # Do clean-up.
 | |
| disconnect con_bug45143_1;
 | |
| disconnect con_bug45143_2;
 | |
| disconnect con_bug45143_3;
 | |
| set debug_sync= 'RESET';
 | |
| set @@global.general_log= @old_general_log;
 | |
| drop view v1;
 | |
| drop table t1;
 | |
| 
 | |
| 
 | |
| --echo #
 | |
| --echo # Bug#50821 Deadlock between LOCK TABLES and ALTER TABLE
 | |
| --echo #
 | |
| 
 | |
| --disable_warnings
 | |
| DROP TABLE IF EXISTS t1, t2;
 | |
| --enable_warnings
 | |
| 
 | |
| CREATE TABLE t1(id INT);
 | |
| CREATE TABLE t2(id INT);
 | |
| 
 | |
| --echo # Connection con2
 | |
| connect (con2, localhost, root);
 | |
| START TRANSACTION;
 | |
| SELECT * FROM t1;
 | |
| 
 | |
| --echo # Connection default
 | |
| connection default;
 | |
| --echo # Sending:
 | |
| --send ALTER TABLE t1 ADD COLUMN j INT
 | |
| 
 | |
| --echo # Connection con2
 | |
| connection con2;
 | |
| let $wait_condition=
 | |
|   SELECT COUNT(*) = 1 FROM information_schema.processlist
 | |
|   WHERE state = "Waiting for table metadata lock" 
 | |
|   AND info = "ALTER TABLE t1 ADD COLUMN j INT";
 | |
| --source include/wait_condition.inc
 | |
| 
 | |
| --echo # This used to cause a deadlock.
 | |
| INSERT INTO t2 SELECT * FROM t1;
 | |
| 
 | |
| COMMIT;
 | |
| 
 | |
| --echo # Connection default
 | |
| connection default;
 | |
| --echo # Reaping ALTER TABLE t1 ADD COLUMN j INT
 | |
| --reap
 | |
| 
 | |
| DROP TABLE t1, t2;
 | |
| disconnect con2;
 | |
| 
 | |
| 
 | |
| --echo #
 | |
| --echo # Bug#51391 Deadlock involving events during rqg_info_schema test
 | |
| --echo #
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| 
 | |
| CREATE EVENT e1 ON SCHEDULE EVERY 5 HOUR DO SELECT 1;
 | |
| CREATE EVENT e2 ON SCHEDULE EVERY 5 HOUR DO SELECT 2;
 | |
| 
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| --echo # Connection con1
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| connect(con1, localhost, root);
 | |
| SET DEBUG_SYNC="before_lock_tables_takes_lock SIGNAL drop WAIT_FOR query";
 | |
| --echo # Sending:
 | |
| --send DROP EVENT e1;
 | |
| 
 | |
| --echo # Connection default
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| connection default;
 | |
| SET DEBUG_SYNC="now WAIT_FOR drop";
 | |
| SELECT name FROM mysql.event, INFORMATION_SCHEMA.GLOBAL_VARIABLES
 | |
|   WHERE definer = VARIABLE_VALUE;
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| SET DEBUG_SYNC="now SIGNAL query";
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| 
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| --echo # Connection con1
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| connection con1;
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| --echo # Reaping: DROP EVENT t1
 | |
| --reap
 | |
| disconnect con1;
 | |
| --source include/wait_until_disconnected.inc
 | |
| 
 | |
| --echo # Connection default
 | |
| connection default;
 | |
| DROP EVENT e2;
 | |
| SET DEBUG_SYNC="RESET";
 | |
| 
 | |
| 
 | |
| --echo #
 | |
| --echo # Bug#55930 Assertion `thd->transaction.stmt.is_empty() ||
 | |
| --echo #           thd->in_sub_stmt || (thd->state..
 | |
| --echo #
 | |
| 
 | |
| --disable_warnings
 | |
| DROP TABLE IF EXISTS t1;
 | |
| --enable_warnings
 | |
| 
 | |
| CREATE TABLE t1(a INT) engine=InnoDB;
 | |
| INSERT INTO t1 VALUES (1), (2);
 | |
| 
 | |
| connect (con1, localhost, root);
 | |
| connect (con2, localhost, root);
 | |
| 
 | |
| --echo # Connection con1
 | |
| connection con1;
 | |
| SET SESSION lock_wait_timeout= 1;
 | |
| SET DEBUG_SYNC= 'ha_admin_open_ltable SIGNAL opti_recreate WAIT_FOR opti_analyze';
 | |
| --echo # Sending:
 | |
| --send OPTIMIZE TABLE t1
 | |
| 
 | |
| --echo # Connection con2
 | |
| connection con2;
 | |
| SET DEBUG_SYNC= 'now WAIT_FOR opti_recreate';
 | |
| SET DEBUG_SYNC= 'after_lock_tables_takes_lock SIGNAL thrlock WAIT_FOR release_thrlock';
 | |
| --echo # Sending:
 | |
| --send INSERT INTO t1 VALUES (3)
 | |
| 
 | |
| --echo # Connection default
 | |
| connection default;
 | |
| SET DEBUG_SYNC= 'now WAIT_FOR thrlock';
 | |
| SET DEBUG_SYNC= 'now SIGNAL opti_analyze';
 | |
| 
 | |
| --echo # Connection con1
 | |
| connection con1;
 | |
| --echo # Reaping: OPTIMIZE TABLE t1
 | |
| --reap
 | |
| SET DEBUG_SYNC= 'now SIGNAL release_thrlock';
 | |
| disconnect con1;
 | |
| --source include/wait_until_disconnected.inc
 | |
| 
 | |
| --echo # Connection con2
 | |
| connection con2;
 | |
| --echo # Reaping: INSERT INTO t1 VALUES (3)
 | |
| --reap
 | |
| disconnect con2;
 | |
| --source include/wait_until_disconnected.inc
 | |
| 
 | |
| --echo # Connection default
 | |
| connection default;
 | |
| DROP TABLE t1;
 | |
| SET DEBUG_SYNC= 'RESET';
 | |
| 
 | |
| 
 | |
| --echo #
 | |
| --echo # Bug#57130 crash in Item_field::print during SHOW CREATE TABLE or VIEW
 | |
| --echo #
 | |
| 
 | |
| --disable_warnings
 | |
| DROP TABLE IF EXISTS t1;
 | |
| DROP VIEW IF EXISTS v1;
 | |
| DROP FUNCTION IF EXISTS f1;
 | |
| --enable_warnings
 | |
| 
 | |
| CREATE TABLE t1(a INT);
 | |
| CREATE FUNCTION f1() RETURNS INTEGER RETURN 1;
 | |
| CREATE VIEW v1 AS SELECT * FROM t1 WHERE f1() = 1;
 | |
| DROP FUNCTION f1;
 | |
| connect(con2, localhost, root);
 | |
| 
 | |
| --echo # Connection con1
 | |
| connect (con1, localhost, root);
 | |
| # Need to trigger this sync point at least twice in order to
 | |
| # get valgrind test failures without the patch
 | |
| SET DEBUG_SYNC= 'open_tables_after_open_and_process_table SIGNAL opened WAIT_FOR dropped EXECUTE 2';
 | |
| --echo # Sending:
 | |
| --send SHOW CREATE VIEW v1
 | |
| 
 | |
| --echo # Connection con2
 | |
| connection con2;
 | |
| SET DEBUG_SYNC= 'now WAIT_FOR opened';
 | |
| SET DEBUG_SYNC= 'now SIGNAL dropped';
 | |
| SET DEBUG_SYNC= 'now WAIT_FOR opened';
 | |
| --echo # Sending:
 | |
| --send FLUSH TABLES
 | |
| 
 | |
| --echo # Connection default
 | |
| connection default;
 | |
| --echo # Waiting for FLUSH TABLES to be blocked.
 | |
| let $wait_condition= SELECT COUNT(*)=1 FROM information_schema.processlist
 | |
|   WHERE state= 'Waiting for table flush' AND info= 'FLUSH TABLES';
 | |
| --source include/wait_condition.inc
 | |
| SET DEBUG_SYNC= 'now SIGNAL dropped';
 | |
| 
 | |
| --echo # Connection con1
 | |
| connection con1;
 | |
| --echo # Reaping: SHOW CREATE VIEW v1
 | |
| --reap
 | |
| 
 | |
| --echo # Connection con2
 | |
| connection con2;
 | |
| --echo # Reaping: FLUSH TABLES
 | |
| --reap
 | |
| 
 | |
| --echo # Connection default
 | |
| connection default;
 | |
| SET DEBUG_SYNC= 'RESET';
 | |
| DROP VIEW v1;
 | |
| DROP TABLE t1;
 | |
| disconnect con1;
 | |
| disconnect con2;
 | |
| 
 | |
| # Check that all connections opened by test cases in this file are really
 | |
| # gone so execution of other tests won't be affected by their presence.
 | |
| --source include/wait_until_count_sessions.inc
 |