presto-main/src/main/java/io/prestosql/execution/buffer/OutputBuffers.java/OutputBuffers/equals
class OutputBuffers:    @Override
    public boolean equals(Object obj)
    {
        if (this == obj) {
            return true;
        }
        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }
        OutputBuffers other = (OutputBuffers) obj;
        return Objects.equals(this.version, other.version) &&
                Objects.equals(this.noMoreBufferIds, other.noMoreBufferIds) &&
                Objects.equals(this.buffers, other.buffers);
    }