572d328762bee9100549963a6826fdb9f633af2a,src/java/org/apache/cassandra/cql3/statements/UpdateStatement.java,UpdateStatement,addUpdateForKey,#ColumnFamily#ByteBuffer#Composite#UpdateParameters#,52
Before Change
if (cfm.comparator.isDense())
{
if (prefix.isEmpty())
throw new InvalidRequestException(String.format("Missing PRIMARY KEY part %s", cfm.clusteringColumns().iterator().next()));
// An empty name for the compact value is what we use to recognize the case where there is not column
// outside the PK, see CreateStatement.
After Change
if (cfm.comparator.isDense())
{
if (prefix.isEmpty())
throw new InvalidRequestException(String.format("Missing PRIMARY KEY part %s", cfm.clusteringColumns().get(0)));
// An empty name for the compact value is what we use to recognize the case where there is not column
// outside the PK, see CreateStatement.