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2912214 - Suboptimal query plan resulting in out of space issue in tempdb - SAP ASE

Symptom

  • Large tempdb already configured
  • Can't allocate space for object 'temp worktable' in database 'tempdb' because 'system' segment is full/has no free extents.
  • Query contains several join conditions
  • Server is configured with allrows_dss. Testing with allrows_oltp or allrows_mix did not help
  • Increasing the 'optimization timeout limit' to as large as 40% did not help
  • With 'forceplan on', query executes fast and tempdb does not run out of space 


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Environment

SAP Adaptive Server Enterprise 16.0 SP03 PL0x

Product

SAP Adaptive Server Enterprise 16.0

Keywords

1105, temp worktable, forceplan , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

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