Wrong Results when Query has Distinct Aggregate (sum(distinct <col>), count(distinct <col>) etc.) and Runs in Parallel
(Doc ID 2324896.1)
Last updated on AUGUST 04, 2018
Applies to:Oracle Database - Enterprise Edition - Version 188.8.131.52 to 184.108.40.206 [Release 12.1]
Information in this document applies to any platform.
- Wrong results in 12.1 when the query contains a distinct aggregation (such as sum(distinct <col>) or count(distinct <col>), etc.), and the query is run in parallel
- NULLs may be returned instead of correct values
- The plan will contain the operation PX SEND 1 SLAVE, as in the example below:
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