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Informix - Problem description

Problem IT41351 Status: Closed

HASH JOINS REQUIRING OVERFLOW NOW FAILING WITH -208

product:
INFORMIX SERVER / 5725A3900 / E10 - 
Problem description:
After upgrade to 14.10.xC4W1 (or 12.10.xC14) and newer, hash
joins that so far ran well can now fail with error -208.

Trapping the error would show the join in following stack:

 afstack
 afhandler
 affail_interface
 check_traperror
 sqerr
 ha_insrt_hashtab_or_ovrfl_page
 hjoin_open
 producer_thread
 startup

With hash joins so far relying on PSORT_DBTEMP setting, this
might appear as though PSORT_DBTEMP didn't work any more - which
is true only indirectly.
Problem Summary:
****************************************************************
* USERS AFFECTED:                                              *
* Users of Informix Server 12.10.xC14+ and 14.10.xC4W1+.       *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Informix Server 12.10.xC16 (if available) or      *
* 14.10.xC9.                                                   *
****************************************************************
Local Fix:
Turn on (add) flag 0x10000000 in onconfig SQL_DEF_CTRL parameter
to get back the old behavior (first determine its current value
using 'onstat -g cfg SQ_DEF_CTRL).
Solution
Workaround
****************************************************************
* USERS AFFECTED:                                              *
* Users of Informix Server 12.10.xC14+ and 14.10.xC4W1+.       *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Informix Server 12.10.xC16 (if available) or      *
* 14.10.xC9.                                                   *
****************************************************************
Comment
Fixed in Informix Server 12.10.xC16 and 14.10.xC9.
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
28.06.2022
04.10.2022
04.10.2022
Problem solved at the following versions (IBM BugInfos)
Problem solved according to the fixlist(s) of the following version(s)