brkyvz commented on code in PR #36871:
URL: https://github.com/apache/spark/pull/36871#discussion_r906394689
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/csv/CSVInferSchema.scala:
##########
@@ -169,6 +178,16 @@ class CSVInferSchema(val options: CSVOptions) extends
Serializable {
private def tryParseDouble(field: String): DataType = {
if ((allCatch opt field.toDouble).isDefined || isInfOrNan(field)) {
DoubleType
+ } else if (options.inferDate) {
+ tryParseDateTime(field)
+ } else {
+ tryParseTimestampNTZ(field)
+ }
+ }
+
+ private def tryParseDateTime(field: String): DataType = {
+ if ((allCatch opt dateFormatter.parse(field)).isDefined) {
Review Comment:
This is a very expensive way
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