createOrReplaceTempView 和 registerTempTable 的区别 [英] Difference between createOrReplaceTempView and registerTempTable

问题描述

我是 spark 新手，当我遇到这两个命令时，我正在使用 python 在 sparkSql 中尝试一些命令:

I am new to spark and was trying out a few commands in sparkSql using python when I came across these two commands:

createOrReplaceTempView() 和 registerTempTable().

这两个命令有什么区别?.它们似乎具有相同的功能集.

What is the difference between the two commands?. They seem to have same set of functionalities.

推荐答案

registerTempTable 是 1.x API 的一部分，已在 Spark 2.0 中弃用.

registerTempTable is a part of the 1.x API and has been deprecated in Spark 2.0.

createOrReplaceTempView 和 createTempView 已在 Spark 2.0 中引入，作为 registerTempTable 的替代品.

createOrReplaceTempView and createTempView have been introduced in Spark 2.0, as a replacement for registerTempTable.

除此之外，registerTempTable 和 createOrReplaceTempView 在功能上等价，前者调用后者.

Other than that registerTempTable and createOrReplaceTempView functionally equivalent and the former one calls the latter one.

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