Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/16680#discussion_r97321283
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/csv/CSVFileFormat.scala
---
@@ -60,64 +57,9 @@ class CSVFileFormat extends TextBasedFileFormat with
DataSourceRegister {
val csvOptions = new CSVOptions(options)
val paths = files.map(_.getPath.toString)
- val lines: Dataset[String] = readText(sparkSession, csvOptions, paths)
- val firstLine: String = findFirstLine(csvOptions, lines)
- val firstRow = new
CsvParser(csvOptions.asParserSettings).parseLine(firstLine)
+ val lines: Dataset[String] = createBaseDataset(sparkSession,
csvOptions, paths)
val caseSensitive =
sparkSession.sessionState.conf.caseSensitiveAnalysis
- val header = makeSafeHeader(firstRow, csvOptions, caseSensitive)
--- End diff --
These removed block is all into `CSVInferSchema.infer(...)`.
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