Query performance degradation with ASE 16 compared to ASE 12.5.4 when the "where clause" contains "when user_name() = 'xxxx'":
ASE 16.0 Execution time: 7,547 seconds
ASE 12.5.4 Execution time: 3,828 seconds
SAP Adaptive Server Enterprise (ASE)
poor, performance, degradation, CR# 803791, 803791, where, clause, case, when, user_name(), user_name , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem
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