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Result set for query varying with execution plans

in SQL Language (MOSC) 5 commentsAnswered ✓

After upgrading to 19c (now 19.9) foound this strange behavior: same query executed on same client gives some times 0 rows selected or 282 rpows selected. Data not changing, it is a DWH which is loaded during night time.

Setting .optimizer_features_enable='12.2.0.1' stops this, therefore it is obviously a optimizer bug, but i couldn't not find such a bug in MOS.

Is there a workaround?

ThanKs

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