Symptom
- Executing a simple query where the "case" expression is used as predicate may cause the server to crash.
- From IQ log you can see the following:
Exception Thrown from s_blockmap.cxx:2988, Err# 8, tid 1542 origtid 1542
O/S Err#: 0, ErrID: 2055 (s_bufman_exception); SQLCode: -1009047, SQLState: 'QSA47', Severity: 14
[20068]: main Bufman: Blockmap info error; bmp={bl=4,uid=1170416.............................
Exception Thrown from s_blockmap.cxx:2988, Err# 8, tid 7 origtid 1542
O/S Err#: 0, ErrID: 2055 (s_bufman_exception); SQLCode: -1009047, SQLState: 'QSA47', Severity: 14
[20068]: main Bufman: Blockmap info error; bmp={bl=4,uid=1170416.......................
Internal error: Unlocking a Buffer that is not locked.
**************************************************
*** Sybase IQ Abort:
*** From: s_buf.cxx:656
*** PID: 6029456
*** Exception Location: 0x11cd49500
*** Error ID: 533, Exception Type: hos_assertexception
*** Thread: 27757 (TID: 7, Original TID: 7)
*** Error #: 3, O/S Error #: 0
**************************************************
...
The following exception is BUFMAN_BLOCKMAP_INFO_ERROR (-1009047)
from s_blockmap::GetBlockmapEntryInfo().
Blockmap Member Variables for 0x144fc13008 From s_barray.cxx:361
...
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Environment
SAP IQ 15.3 GA
Product
Keywords
s_blockmap.cxx:2988, Case predicate , KBA , BC-SYB-IQ , Sybase IQ , Problem
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