public Builder clearTableName() {
        tableName_ = getDefaultInstance().getTableName();
        bitField0_ = (bitField0_ & ~0x00000001);
        onChanged();
        return this;
      }
<code>required string table_name = 1;</code>
@return This builder for chaining.
llap-common/src/gen/protobuf/gen-java/org/apache/hadoop/hive/llap/daemon/rpc/LlapDaemonProtocolProtos.java