public Builder clearDdlSchemaName() {
        bitField0_ = (bitField0_ & ~0x00004000);
        ddlSchemaName_ = getDefaultInstance().getDdlSchemaName();
        onChanged();
        return this;
      }
<code>optional bool withoutSchema = 17;</code>

<pre>
* without schema *
</pre>
node/etl/src/main/java/com/alibaba/otter/node/etl/model/protobuf/BatchProto.java