Figure 15 shows the renamed output schema structure of the Regroup Step.

图15显示了Regroup Step的重命名输出架构结构。

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The Russian Doll pattern provides the least extensible schema structure.

Russian Doll模式提供了具有最低扩展性的模式结构。

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When you run this command, the library.xsd file will be populated with the schema structure.

在运行此命令时，将使用架构结构填充library . xsd文件。

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Now, RDBMS and SQL somewhat goes directly against the principles that forced Hadoop to be created in the first place, which is requirement to have a predefined structure (known as a schema) of the data being stored.

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