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Fix for BUG#9103:

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Don't produce data truncation warnings from within cp_buffer_from_ref(). This function
is only used to make index search tuples and data truncation that occurs here has no
relation with truncated values being saved into tables.


mysql-test/r/update.result:
  Testcase for BUG#9103
mysql-test/t/update.test:
  Testcase for BUG#9103
sql/opt_range.cc:
  cp_buffer_from_ref now has THD* parameter
sql/sql_select.h:
  cp_buffer_from_ref now has THD* parameter
This commit is contained in:
unknown 2005-04-18 05:21:44 +04:00
commit 955ec71f78
5 changed files with 41 additions and 8 deletions
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12
mysql-test/t/update.test
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@ -189,3 +189,15 @@ insert into t1 values (0, '1');
update t1 set b = b + 1 where a = 0;
select * from t1;
drop table t1;
# BUG#9103 "Erroneous data truncation warnings on multi-table updates"
create table t1 (a int, b varchar(10), key b(b(5))) engine=myisam;
create table t2 (a int, b varchar(10)) engine=myisam;
insert into t1 values ( 1, 'abcd1e');
insert into t1 values ( 2, 'abcd2e');
insert into t2 values ( 1, 'abcd1e');
insert into t2 values ( 2, 'abcd2e');
analyze table t1,t2;
update t1, t2 set t1.a = t2.a where t2.b = t1.b;
show warnings;
drop table t1, t2;