Symptom
- without statistics optimizer uses OR strategy
- with ansinull is off, incorrect rows will be returned
- with ansinull is on, no row will be returned
- with statistics optimizer uses a plan nested loop
- with ansinull off, 0 row will be returned
- with ansinull on, 0 row will be returned
- special OR plan is chosen for a join under the OR over two nullable columns
- both columns have null values
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Environment
- SAP Adaptive Server Enterprise (ASE)
- Dataserver
Product
SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0
Keywords
ansinull, null value, OR strategy, IN clause, inconsistent, incorrect, wrong, result, CR762178, CR#762178, 762178 , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem
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