public String getMergeAction() {
        return this.mergeAction;
    }
<p>
The action used when to detemine how a MERGE in a Redshift sink will be handled.
</p>

@return The action used when to detemine how a MERGE in a Redshift sink will be handled.
aws-java-sdk-glue/src/main/java/com/amazonaws/services/glue/model/AmazonRedshiftNodeData.java