IBM Support

IT29671: QUERY MIGHT FAIL WITH SQL0901N AND REASON "UNSUPPORTED LEAF NODE OF THE TREE"

Subscribe to this APAR

By subscribing, you receive periodic emails alerting you to the status of the APAR, along with a link to the fix after it becomes available. You can track this item individually or track all items by product.

Notify me when this APAR changes.

Notify me when an APAR for this component changes.

 

APAR status

  • Closed as program error.

Error description

  • Certain queries might fail with SQL0901N  and the following
    error message:
    
    SQL0901N  The SQL statement or command failed because of a
    database system
    error. (Reason "Unsupported leaf node of the tree".)
    SQLSTATE=58004
    
    The db2diag.log will report the following message:
    
    2019-03-08-16.08.31.205958+060 E191931A2426 LEVEL: Info (Origin)
    PID : 53412178 TID : 73866 PROC : db2sysc 0
    INSTANCE: db2jkl NODE : 000 DB : JKL
    APPHDL : 0-44276 APPID: *LOCAL.hal9001.190308150637
    AUTHID : DB2JKL HOSTNAME: hal9001
    EDUID : 73866 EDUNAME: db2agent (JKL) 0
    FUNCTION: DB2 UDB, SW- common services, sqlnn_cmpl, probe:650
    MESSAGE : ZRC=0x803100AF=-2144272209=SQLNN_E_BADNEWS
    "unexpected error but state is OK"
    DATA #1 : String, 62 bytes
    An unexpected error was detected during statement compilation.
    DATA #2 : Boolean, 1 bytes
    true
    DATA #3 : Boolean, 1 bytes
    false
    DATA #4 : Boolean, 1 bytes
    true
    DATA #5 : Boolean, 1 bytes
    false
    DATA #6 : Hex integer, 4 bytes
    0x00000000
    DATA #7 : SQLCA, PD_DB2_TYPE_SQLCA, 136 bytes
    sqlcaid : SQLCA sqlcabc: 136 sqlcode: -901 sqlerrml: 33
    sqlerrmc: Unsupported leaf node of the tree
    sqlerrp : SQLNQ4A0
    sqlerrd : (1) 0x801A006D (2) 0x00000000 (3) 0x00000000
    (4) 0x00000000 (5) 0xFFFFFE66 (6) 0x00000000
    sqlwarn : (1) (2) (3) (4) (5) (6)
    (7) (8) (9) (10) (11)
    sqlstate:
    DATA #8 : Hex integer, 4 bytes
    0x00000040
    DATA #9 : String with size, 724 bytes
    <query>
    DATA #10: String, 332 bytes
    Compiler error stack for rc = -2144272209:
    
    with the following stack:
    
    sqlnn_cmpl[370]
    sqlnr_exe[1200]
    sqlnr_rcc[100]
    sqlnr_seq[100]
    sqlnr_comp[110]
    sqlnr_optprep_action[100]
    sqlnr_optprep_chunk2[550]
    sqlnr_generate_between4eao[520]
    sqlnr_exists_augment[800]
    sqlnq_hxp::sqlnq_hxp_pid[40]
    sqlnq_qtb::add_head_exp[60]
    sqlnq_fun_tres[140]
    sqlnq_fun_res_walk[410]
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * all                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to Db2 11.1.4.6 or higher                            *
    ****************************************************************
    

Problem conclusion

  • Upgrade to Db2 11.1.4.6 or highera
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT29671

  • 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

    2019-07-10

  • Closed date

    2021-03-31

  • Last modified date

    2021-03-31

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

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

    IT29706 IT30051

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

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

Document Information

Modified date:
01 April 2021