Github user gatorsmile commented on the issue:
https://github.com/apache/spark/pull/15024
In
[DataSource.scala](https://github.com/cloud-fan/spark/blob/9ab4b8ce3dd7c41edb0681ff903d218bad2e4225/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSource.scala),
streaming sources are still built on the `path` key in the parameter
`options`. I tried to find whether any of non-streaming data sources still
requires `path`. Unable to find more except the two comments I left above.
You know, `CreateTempViewUsing` is still directly passing `path` in
`options` when building a data source. Thus, we might need further PRs to clean
the related code further, I think.
Currently, we have two ways to pass the values of `path`. Eventually, the
file path should be passed through a single parameter, `paths`.
```Scala
case class DataSource(
sparkSession: SparkSession,
className: String,
paths: Seq[String] = Nil,
userSpecifiedSchema: Option[StructType] = None,
partitionColumns: Seq[String] = Seq.empty,
bucketSpec: Option[BucketSpec] = None,
options: Map[String, String] = Map.empty) extends Logging {
```
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