escalatelock.out

derby database source code.good for you.

ij> -- test lock escalation.  derby.locks.escalationThreshold=100 property 
-- has been set to force lock escalation
-- to occur at the minimum level of 100  locks.
run resource 'createTestProcedures.subsql';
ij> CREATE FUNCTION  PADSTRING (DATA VARCHAR(32000), LENGTH INTEGER) RETURNS VARCHAR(32000) EXTERNAL NAME 'org.apache.derbyTesting.functionTests.util.Formatters.padString' LANGUAGE JAVA PARAMETER STYLE JAVA;
0 rows inserted/updated/deleted
ij> CREATE PROCEDURE WAIT_FOR_POST_COMMIT() DYNAMIC RESULT SETS 0 LANGUAGE JAVA EXTERNAL NAME 'org.apache.derbyTesting.functionTests.util.T_Access.waitForPostCommitToFinish' PARAMETER STYLE JAVA;
0 rows inserted/updated/deleted
ij> run resource 'LockTableQuery.subsql';
ij> create view lock_table as
select 
    cast(username as char(8)) as username,
    cast(t.type as char(8)) as trantype,
    cast(l.type as char(8)) as type,
    cast(lockcount as char(3)) as cnt,
    mode,
    cast(tablename as char(12)) as tabname,
    cast(lockname as char(10)) as lockname,
    state,
    status
from 
    new org.apache.derby.diag.LockTable() l  right outer join new org.apache.derby.diag.TransactionTable() t
on l.xid = t.xid where l.tableType <> 'S' and t.type='UserTransaction';
0 rows inserted/updated/deleted
ij> --on l.xid = t.xid where l.tableType <> 'S' or l.tableType is null
-- order by
--     tabname, type desc, mode, cnt, lockname
-- lock table with system catalog locks included.
create view full_lock_table as
select 
    cast(username as char(8)) as username,
    cast(t.type as char(8)) as trantype,
    cast(l.type as char(8)) as type,
    cast(lockcount as char(3)) as cnt,
    mode,
    cast(tablename as char(12)) as tabname,
    cast(lockname as char(10)) as lockname,
    state,
    status
from 
    new org.apache.derby.diag.LockTable() l right outer join new org.apache.derby.diag.TransactionTable() t
on l.xid = t.xid where l.tableType <> 'S' ;
0 rows inserted/updated/deleted
ij> -- lock table with no join.
create view lock_table2 as
select 
    cast(l.xid as char(8)) as xid,
    cast(l.type as char(8)) as type,
    cast(lockcount as char(3)) as cnt,
    mode,
    cast(tablename as char(12)) as tabname,
    cast(lockname as char(10)) as lockname,
    state
from 
    new org.apache.derby.diag.LockTable() l  
where l.tableType <> 'S' ;
0 rows inserted/updated/deleted
ij> -- transaction table with no join.
create view tran_table as
select 
    *
from 
    new org.apache.derby.diag.TransactionTable() t ;
0 rows inserted/updated/deleted
ij> autocommit off;
ij> -- TEST 1 - make sure IX row locks are escalated to a persistent X table lock.
create table foo (a int);
0 rows inserted/updated/deleted
ij> commit;
ij> -- first insert 90 rows
insert into foo values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9);
10 rows inserted/updated/deleted
ij> insert into foo values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9);
10 rows inserted/updated/deleted
ij> insert into foo values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9);
10 rows inserted/updated/deleted
ij> insert into foo values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9);
10 rows inserted/updated/deleted
ij> insert into foo values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9);
10 rows inserted/updated/deleted
ij> insert into foo values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9);
10 rows inserted/updated/deleted
ij> insert into foo values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9);
10 rows inserted/updated/deleted
ij> insert into foo values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9);
10 rows inserted/updated/deleted
ij> insert into foo values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9);
10 rows inserted/updated/deleted
ij> -- check to make sure we have IX table and X row locks.
select * from lock_table order by tabname, type desc, mode, cnt, lockname;
USERNAME|TRANTYPE|TYPE    |CNT |MODE|TABNAME     |LOCKNAME  |STATE|STATUS  
---------------------------------------------------------------------------
APP     |UserTran|TABLE   |9   |IX  |FOO         |Tablelock |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,10)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,11)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,12)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,13)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,14)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,15)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,16)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,17)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,18)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,19)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,20)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,21)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,22)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,23)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,24)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,25)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,26)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,27)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,28)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,29)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,30)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,31)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,32)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,33)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,34)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,35)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,36)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,37)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,38)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,39)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,40)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,41)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,42)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,43)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,44)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,45)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,46)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,47)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,48)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,49)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,50)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,51)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,52)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,53)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,54)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,55)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,56)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,57)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,58)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,59)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,60)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,61)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,62)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,63)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,64)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,65)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,66)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,67)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,68)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,69)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,7)     |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,70)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,71)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,72)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,73)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,74)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,75)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,76)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,77)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,78)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,79)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,8)     |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,80)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,81)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,82)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,83)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,84)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,85)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,86)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,87)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,88)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,89)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,9)     |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,90)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,91)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,92)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,93)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,94)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,95)    |GRANT|ACTIVE  
APP     |UserTran|ROW     |1   |X   |FOO         |(1,96)    |GRANT|ACTIVE  
ij> -- now insert 10 more rows, pushing the lock over the escalation limit.
insert into foo values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9);
10 rows inserted/updated/deleted
ij> -- check to make sure we now just have a X table lock.
select * from lock_table order by tabname, type desc, mode, cnt, lockname;
USERNAME|TRANTYPE|TYPE    |CNT |MODE|TABNAME     |LOCKNAME  |STATE|STATUS  
---------------------------------------------------------------------------
APP     |UserTran|TABLE   |11  |IX  |FOO         |Tablelock |GRANT|ACTIVE  
APP     |UserTran|TABLE   |1   |X   |FOO         |Tablelock |GRANT|ACTIVE  
ij> -- insert 10 more rows to make sure we don't get rows locks from now on.
insert into foo values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9);
10 rows inserted/updated/deleted
ij> -- check to make sure we now just have a X table lock.
select * from lock_table order by tabname, type desc, mode, cnt, lockname;
USERNAME|TRANTYPE|TYPE    |CNT |MODE|TABNAME     |LOCKNAME  |STATE|STATUS  
---------------------------------------------------------------------------
APP     |UserTran|TABLE   |12  |IX  |FOO         |Tablelock |GRANT|ACTIVE  
APP     |UserTran|TABLE   |1   |X   |FOO         |Tablelock |GRANT|ACTIVE  
ij> commit;
ij> -- TEST 2 - make sure IS row locks are escalated to a persistent X table lock.
create index foox on foo (a);
0 rows inserted/updated/deleted
ij> commit;
ij> set isolation serializable;
0 rows inserted/updated/deleted
ij> -- get IS row locks on just under 100 of the rows;
select a from foo where a < 5;
A          
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