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2364881 - Forceplan causes min/max optimization to use Inefficient internal query plan - SAP ASE

Symptom

When "set forceplan on" is enabled, the internally generated abstract plan may lead to very inefficient plan to satisfy the forceplan for the queries which involved min/max operations.

We will see the tablescan is being used even if the required indices are available for the query.


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Environment

  • SAP Adaptive Server Enterprise 15.7.x
  • SAP Adaptive Server Enterprise 16.x

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0

Keywords

forceplan, force, CR#801789, 801789, "bad plan", min/max, performance , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , Bug Filed

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