Using sample data in a preview
Actual data is used to generate a preview by default. To improve preview performance, you can configure BIRT Studio to use sample data instead, which uses dummy values. To enable sample data in a preview, set EnableSampleDataInPreview to true in erni_config.xml:
<featureConfigs>
...
  <featureConfig>
    <name>EnableSampleDataInPreview/name>
    <value>true</value>
  </featureConfig>
...
</featureConfigs>

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