Symptom
A simple update statement generates a different plan with statement cache on verses statement cache off:
UPDATE mydb..mytable
SET duration = c.duration
FROM #chunk c,
mydb..mytable p
WHERE p.asof_date = c.price_date
AND p.cusip = c.cusip
Why is this happening?
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Environment
-
SAP Adaptive Server Enterprise (ASE) 15.7
-
SAP Adaptive Server Enterprise (ASE) 16
Product
SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0
Keywords
table scan, query plan, optimization goal , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed
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