2149164 - Query optimizer is not picking up a function-based index when 'statement cache' and "enable literal autoparam"are tunred 'ON' - ASE | SAP Knowledge Base Article

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2149164 - Query optimizer is not picking up a function-based index when 'statement cache' and "enable literal autoparam"are tunred 'ON' - ASE

Symptom

  • 'statement cache' and the sp_configure parameter "enable literal autoparam" are turned 'ON'
  • The table being queried has a function-based index
  • Query optimizer is not picking up a function-based index
  • Query optimizer chooses a table scan
  • The resulting rows are not in the order expected

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Environment

  • SAP Adaptive Server Enterprise (ASE) 15.7
  • SAP Adaptive Server Enterprise (ASE) 16.0

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0

Keywords

wrong order, select , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

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