com.snc.pa.dc.use_hashcode_for_distinct Stores Count Distinct aggregation values as HashCodes to reduce memory use during Performance Analytics data collection. With the default true setting, aggregations use HashCodes instead of retaining each distinct value separately, consuming less memory.
trueThe answers below summarize the purpose, scope, default effect, and review scenarios for this property.
| What does it do? | When enabled, uses a HashCode to store Count Distinct aggregation values in memory instead of storing each distinct value separately. |
|---|---|
| What area does it affect? | Performance Analytics data collection |
| What does the default mean? | The default value is "true", which means this behavior is enabled by default. |
| When should you review it? | When tuning memory use for Count Distinct aggregations. |
Facts stated in the ServiceNow documentation. No out of the box record has been read from an instance yet.
| Property name | com.snc.pa.dc.use_hashcode_for_distinct |
|---|---|
| Type | boolean |
| Application | Not stated |
| Default value | true |
| Description | Sets whether Count Distinct aggregations are stored as separate values in memory or as a HashCode. When the value of this property is True, a HashCode is used, which consumes less memory than storing individual values. |
Official references and nearby text excerpts where this property appears.
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