public AmazonRedshiftNodeData withMergeClause(String mergeClause) {
        setMergeClause(mergeClause);
        return this;
    }
<p>
The SQL used in a custom merge to deal with matching records.
</p>

@param mergeClause
       The SQL used in a custom merge to deal with matching records.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-glue/src/main/java/com/amazonaws/services/glue/model/AmazonRedshiftNodeData.java