Bug #13372 wrong result field type of decimal union

Submitted: 21 Sep 2005 9:31 Modified: 13 Oct 2005 2:43
Reporter: Ramil Kalimullin Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server Severity:S3 (Non-critical)
Version:4.1 OS:
Assigned to: Alexey Botchkov CPU Architecture:Any

[21 Sep 2005 9:31] Ramil Kalimullin 
Description:
Union of two decimal fields is of wrong type.

How to repeat:
create table t1 (d decimal(10,1));
create table t2 (d decimal(10,9));
insert into t1 values ("100000000.0");
insert into t2 values ("1.23456780");
create table t3 select * from t2 union select * from t1;
select * from t3;
show create table t3;

-- here we get decimal(10,9)
[27 Sep 2005 10:01] Bugs System 
A patch for this bug has been committed. After review, it may
be pushed to the relevant source trees for release in the next
version. You can access the patch from:

  http://lists.mysql.com/internals/30368
[27 Sep 2005 10:21] Bugs System 
A patch for this bug has been committed. After review, it may
be pushed to the relevant source trees for release in the next
version. You can access the patch from:

  http://lists.mysql.com/internals/30370
[27 Sep 2005 11:13] Bugs System 
A patch for this bug has been committed. After review, it may
be pushed to the relevant source trees for release in the next
version. You can access the patch from:

  http://lists.mysql.com/internals/30372
[13 Oct 2005 2:43] Mike Hillyer 
Documented in 4.1.15 changelog:

 <listitem>
        <para>
          UNION of two DECIMAL columns returned wrong field type. (Bug
          #13372)
        </para>
      </listitem>

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