public Builder setSint64Type(long value) {

        sint64Type_ = value;
        bitField0_ |= 0x00000080;
        onChanged();
        return this;
      }
<code>optional sint64 sint64Type = 8;</code>
@param value The sint64Type to set.
@return This builder for chaining.
ql/src/gen/protobuf/gen-test/org/apache/hadoop/hive/ql/io/protobuf/SampleProtos.java