Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/21909#discussion_r206985104 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FailureSafeParser.scala --- @@ -56,9 +57,14 @@ class FailureSafeParser[IN]( } } + private val skipParsing = optimizeEmptySchema && schema.isEmpty def parse(input: IN): Iterator[InternalRow] = { try { - rawParser.apply(input).toIterator.map(row => toResultRow(Some(row), () => null)) + if (skipParsing) { + Iterator.single(InternalRow.empty) + } else { + rawParser.apply(input).toIterator.map(row => toResultRow(Some(row), () => null)) --- End diff -- Could you add a test case for counting both CSV and JSON source when the files having broken records? Any behavior change after this PR?
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