SAP Knowledge Base Article - Preview

2603480 - Performance regression with evaluation of equality predicates on FP indexes - SAP IQ

Symptom

Slow query performance regression got introduced in the evaluation of equality predicates on FP column indexes.  The regression causes predicate evaluation to scan more rows than necessary, but does not affect query result accuracy.  The degree of performance drop will vary depending on the type of query, size and structure of the data, and other query selectivity factors.


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Environment

  • SAP IQ 16.0 SP11 PL14 - SP11 PL16
  • SAP IQ 16.1 SP01 PL06
  • SAP IQ 16.1 SP02 PL04 

Product

SAP IQ 16.0 ; SAP IQ 16.1

Keywords

Sybase , CR813159, CR#813159, 813159, CR811137, CR#811137, 811137 , KBA , BC-SYB-IQ , Sybase IQ , Problem

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