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Erro

When using Return Distinct Values with the Out Fields and Output Statistics parameters, the ArcGIS REST query request returns unexpected results by using both the out fields and the output statistics field as distinct values instead of just using the out fields.

ArcGIS Online
Número de ID do Erro BUG-000169317
EnviadoJuly 23, 2024
Última ModificaçãoOctober 14, 2024
Aplica-se àArcGIS Online
Versão encontradaJune 2024
Sistema OperacionalWindows OS
Versão do Sistema Operacional11.0 64 bit
StatusAs Designed

Informações Adicionais

The current implementation does not support the use of distinct count in combination with aggregation for fields other than those used in the statistics calculation. This behavior applies to both the Online and Enterprise feature services. Current Behavior: For non-aggregated queries, the documented behavior is correct. For aggregated queries with distinct count: The system always uses the statistics field as the distinct field. In the example provided, it is the population field. Out fields are only supported for aggregated queries if they are the group by fields. Explanation: The query structure in question presents challenges in interpretation and execution. After careful consideration and discussion with the Enterprise team, it is determined that supporting this specific use case would introduce significant complexity and potential risks to the system.

Solução Provisória

It is recommended for the users seeking to achieve similar results to follow the following approach: Use a group by clause on the desired fields (e.g., GROUP BY zipcode, population). Calculate the distinct sum for each group. If needed, infer the total sum from the grouped results. This method provides a more reliable and supported way to obtain the required information while maintaining system integrity and performance.

Etapas para Reproduzir

ID do Erro: BUG-000169317

Software:

  • ArcGIS Online

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