public java.util.Map<String, String> getAdditionalDataSources() {
        return additionalDataSources;
    }
<p>
The aliases of all data sources except primary.
</p>

@return The aliases of all data sources except primary.
aws-java-sdk-glue/src/main/java/com/amazonaws/services/glue/model/EvaluateDataQualityMultiFrame.java