IBM Support

IT22207: SQL0901N "COLUMN NUMBER OUT OF RANGE" ERROR WHEN GROUP BY IN NULL PRODUCING SIDE OF OUTER JOIN

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APAR status

  • Closed as program error.

Error description

  • DB2 query may produce SQL0901N -"column number out of range"
    error, when the following conditions are met:
    1) The query has Outer Join
    2) Null producing side of Outer Join has Group By
    3) There is IN predicate on column from Tuple preserving side.
    
    Example:
    drop table t1;
    create table t1(c1 int not null primary key);
    insert into t1 values(1),(2),(3);
    drop table t2;
    create table t2(c1 int not null, c2 int not null);
    
    select * from t1 left outer join (select sum(c2), c2 from t2
    group by c2)t on t1.c1=t.c2 and t1.c1 in (1,2);
    

Local fix

  • 1) Rewrite the query to convert the IN predicate into OR or NOT
    IN predicate into AND
    2) Use db2set DB2COMPOPT=NO_GBPU (instance recycle is needed)
        or use optguideline:
    <query>
    /* <OPTGUIDELINES>
    <REGISTRY>
    <OPTION NAME='DB2_COMPOPT' VALUE='NO_GBPU'/>
    </REGISTRY>
    </OPTGUIDELINES>
    */
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * ALL                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to Db2 11.1 Mod 4 Fixpack 4 or higher                *
    ****************************************************************
    

Problem conclusion

  • First fixed in Db2 11.1 Mod 4 Fixpack 4
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT22207

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    B10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-08-30

  • Closed date

    2020-01-28

  • Last modified date

    2020-01-28

  • APAR is sysrouted FROM one or more of the following:

    IT22197

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
28 January 2020