yaooqinn commented on a change in pull request #27906: [SPARK-31150][SQL]
Parsing seconds fraction with variable length for timestamp
URL: https://github.com/apache/spark/pull/27906#discussion_r392879558
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/csv/CSVInferSchema.scala
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@@ -34,7 +34,8 @@ class CSVInferSchema(val options: CSVOptions) extends
Serializable {
options.timestampFormat,
options.zoneId,
options.locale,
- legacyFormat = FAST_DATE_FORMAT)
+ legacyFormat = FAST_DATE_FORMAT,
+ varLenEnabled = options.timestampFormat.contains('S'))
Review comment:
I have updated this, and mv the cache optimization to
`DateTimeFormatterHelper`
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