presto-main/src/main/java/io/prestosql/sql/planner/PartitioningHandle.java/PartitioningHandle/equals
class PartitioningHandle:    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        PartitioningHandle that = (PartitioningHandle) o;

        return Objects.equals(connectorId, that.connectorId) &&
                Objects.equals(transactionHandle, that.transactionHandle) &&
                Objects.equals(connectorHandle, that.connectorHandle);
    }