SAP Knowledge Base Article - Preview

2854668 - ASE's query optimizer ignores function based index and uses table scan to access a table

Symptom

The function based index is ignored by ASE's optimizer when the UDF has a input parameter that is specified varchar datatype.


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Environment

  • Adaptive Server Enterprise(ASE) 15.x
  • Adaptive Server Enterprise(ASE) 16.x

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0

Keywords

function based index, ASE optimizer, ASE, user-defined functions, UDF , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , How To

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