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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2019/02/11 05:57:46 UTC
[GitHub] cloud-fan edited a comment on issue #23714:
[SPARK-26744][SQL]Support schema validation in FileDataSourceV2 framework
cloud-fan edited a comment on issue #23714: [SPARK-26744][SQL]Support schema validation in FileDataSourceV2 framework
URL: https://github.com/apache/spark/pull/23714#issuecomment-462225364
@rdblue @gengliangwang I don't think this needs an API change. This is just a schema validation feature, which can be done in any DS v2 sources. Schema validation needs to know the user-specified schema when reading, or the schema of input data when writing, which are both available in the current ds v2 APIs. It looks to me that, this PR just re-implements the schema validation feature in file source v2 framework.
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