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https://issues.apache.org/jira/browse/SPARK-16126?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-16126:
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Assignee: (was: Apache Spark)
> Better Error Message When using DataFrameReader without `path`
> --------------------------------------------------------------
>
> Key: SPARK-16126
> URL: https://issues.apache.org/jira/browse/SPARK-16126
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Xiao Li
>
> When users do not specify the path in `DataFrameReader` APIs, it can get a
> confusing error message. For example,
> {noformat}
> spark.read.json()
> {noformat}
> Error message:
> {noformat}
> Unable to infer schema for JSON at . It must be specified manually;
> {noformat}
> After the fix, the error message will be like:
> {noformat}
> 'path' is not specified
> {noformat}
> Another major goal of this PR is to add test cases for the latest changes in
> https://github.com/apache/spark/pull/13727.
> - orc read APIs
> - illegal format name
> - save API - empty path or illegal path
> - load API - empty path
> - illegal compression
> - fixed a test case in the existing test case `prevent all column
> partitioning`
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