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Problem IT22494
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Status: Closed |
QUERY CONTAINS COUNT(CONSTANT) OR COUNT_BIG(CONSTANT) MIGHT RETURN INCORRECT RESULT
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| product: |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 |
| Problem description: |
Wrong results might be observed when:
1. a query contains COUNT(constant) or COUNT_BIG(constant);
2. the COUNT or COUNT_BIG aggregation is on an outer joined
table;
3. the table on the right hand side of a left outer join or the
table on the left hand side of a right outer join has more rows
than the table on the other side of the outer join.
Example :
$ db2 "select count(1) from temp_cust_no_p a left join
temp_a_rpt_dp_acct b on a.CUST_NO=b.CUST_NO"
1
-----------
327383 |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* NONE *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to v105fp10 *
**************************************************************** |
| Local Fix: |
db2set DB2_REDUCED_OPTIMIZATION=NO_PEA |
| Solution |
|
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 22.09.2017
16.07.2018
16.07.2018 |
| Problem solved at the following versions (IBM BugInfos) |
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| Problem solved according to the fixlist(s) of the following version(s) |
