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1926608 - [SAP SYBASE IQ] Same Deletes which have a same target table can be executed concurrently.


Same Delete Commands Can be executed concurrently even though delete has a same target table.
In (mixed workload, Multi-Users, Many Ad-Hoc Queries) environment, if a join delete is spending hours in searching phase before gets W-lock.
During those phase, other small delete session on the same table can be fired and finished well without any lock interruption.
Order of Delete can be important in above Environment.



SAP SYBASE IQ12.7, IQ15.2, IQ15.4 & IQ16


SAP IQ 16.0 ; SAP Sybase IQ 15.2 ; SAP Sybase IQ 15.4


delete, lock, lock table, shared-lock, write-lock, write lock, shared lock, shared, SAP IQ, IQ, delete lock , KBA , BC-SYB-IQ , Sybase IQ , BW-SYS-DB-IQ , BW on HANA with Sybase IQ Near-line Storage , Bug Filed

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