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Bug#49329 example (and other) engines use wrong collation for open tables hash

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This fix changes the character set used within the
IBMDB2I handler to hash table names to information
about open tables. Previously, tables with names
that differed only in letter case would hash to the
same data structure. This caused incorrect behavior
or errors when two such tables were in use simultaneously.

mysql-test/suite/ibmdb2i/r/ibmdb2i_bug_49329.result:
  Bug#49329 example (and other) engines use wrong collation for open tables hash
  
  Result file for the test case.
mysql-test/suite/ibmdb2i/t/ibmdb2i_bug_49329.test:
  Bug#49329 example (and other) engines use wrong collation for open tables hash
  
  Test case for the bug fix.
storage/ibmdb2i/ha_ibmdb2i.cc:
  Bug#49329 example (and other) engines use wrong collation for open tables hash
  
  change the character set used within the IBMDB2I
  handler to hash table names to information about
  open tables.
This commit is contained in:
V Narayanan 2009-12-11 12:31:16 +05:30
parent ba71a9e5d6
commit e3c1ee24fc
3 changed files with 20 additions and 1 deletions
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9
mysql-test/suite/ibmdb2i/r/ibmdb2i_bug_49329.result Normal file
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@ -0,0 +1,9 @@
create table ABC (i int) engine=ibmdb2i;
insert into ABC values(1);
create table abc (i int) engine=ibmdb2i;
insert into abc values (2);
select * from ABC;
i
1
drop table ABC;
drop table abc;

10
mysql-test/suite/ibmdb2i/t/ibmdb2i_bug_49329.test Normal file
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@ -0,0 +1,10 @@
source suite/ibmdb2i/include/have_ibmdb2i.inc;
source include/have_case_sensitive_file_system.inc;
create table ABC (i int) engine=ibmdb2i;
insert into ABC values(1);
create table abc (i int) engine=ibmdb2i;
insert into abc values (2);
select * from ABC;
drop table ABC;
drop table abc;

2
storage/ibmdb2i/ha_ibmdb2i.cc
View file

@ -284,7 +284,7 @@ static int ibmdb2i_init_func(void *p)
was_ILE_inited = false;
ibmdb2i_hton= (handlerton *)p;
VOID(pthread_mutex_init(&ibmdb2i_mutex,MY_MUTEX_INIT_FAST));
(void) hash_init(&ibmdb2i_open_tables,system_charset_info,32,0,0,
(void) hash_init(&ibmdb2i_open_tables,table_alias_charset,32,0,0,
(hash_get_key) ibmdb2i_get_key,0,0);
ibmdb2i_hton->state= SHOW_OPTION_YES;