Symptom
- Running a query which has been running for years, suddenly receives:
Msg 11060, Level 16, State 1:
This statement has exceeded the maximum number of recompilations (20). This indicates an internal error. Please note the error prior to this one and contact SAP Technical Support. - The query has, set merge_join off, as the first line in the query.
- Yet, the query plan that is being used clearly shows it is using merge join:
...
| | | | | | |MERGE JOIN Operator (Join Type: Left Outer Join) (VA = 63)
| | | | | | | Using Worktable5 for internal storage.
... - Why is it selecting a bad plan and how is this fixed?
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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
KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , How To
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