2017553 - SAP IQ will crash by the insert of duplicate data

• When you insert a duplicate data in a table with an B-tree based index(HG,WD,TEXT), SAP IQ server crashes rarely.
• [demo]$ dbisql -c 'uid=dba;pwd=sql' -host hostname -port 2638 -nogui repro.sql
  Error! The connection to the database was closed by the server.
    Connection was terminated
    SQLCODE=-308, ODBC 3 State="HY000"
    File: "repro.sql" on line 1, column 1
    INSERT REPRO_TABLE (col1, col2) VALUES (99, 'tantai,kakunin,1')
    You can continue executing or stop.
  1. Stop
  2. Continue
  Select an option:
• The stack trace logged in IQ log contains the following functions:   

s_btParallelCursor::SetDeleteNotifier
s_ohcDeleteIter::s_ohcDeleteIter
hs_word::LargeDelete
hs_word::Delete
hdb_delete_indices::Unit_of_Work
hdb_delete_indices::hdb_delete_index_iter::ExecWork
workAllocator::DoWork
hos_thread::Main
hos_lwtask::Start
IQWorkerStarter
run_task_body

SAP IQ 15.4 ESD 2 and earlier

CR726924, -308, SIGSEGV, 726924 , KBA , BC-SYB-IQ , Sybase IQ , Bug Filed