2525934 - Access Violation using table comparison transform upgrading from 4.1 to 4.2 - Data Services

• Using two table comparison transforms split from a query transform
• Running dataflows with table comparison transforms in parallel
• Failing dataflow never hits the READY stage in monitor log
• Degree of Parallelism > 1
• Error log contains:

  System Exception <ACCESS_VIOLATION> occurred. Process dump option is off. Process is not dumped.
  Call stack:
  0x000000008083ABAE, OptUserNode::RemoveMergeAndJoinForTC()+0302 byte(s),
  d:\im_ds_4.2_sp05_patch_rel\src\dataservices\dataintegrator\codeline\code\src\optimizer\optnode.cpp, line 14663+0021 byte(s)
  0x000000008084CD83, OptNode::post_process_TC_new()+0803 byte(s),

        Exception code: C0000005 ACCESS_VIOLATION 

        Fault address: 000000018083ABAE 01:0000000000839BAE D:\Program Files (x86)\SAP BusinessObjects\Data Services\bin\acta.dll

• SAP Data Services 4.2 Support Pack 5 Patch 4 (4.2.5.1137)
• Windows

table compare, dop, upgrade, access violation , KBA , EIM-DS-EXE , Job Execution , EIM-DS , Data Services , Problem