cloud-fan commented on a change in pull request #27537:
[SPARK-30668][SQL][FOLLOWUP] Raise exception instead of silent change for new
TimestampFormatter
URL: https://github.com/apache/spark/pull/27537#discussion_r382446239
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/datetimeExpressions.scala
##########
@@ -787,6 +788,10 @@ abstract class ToTimestamp
formatter.parse(
Review comment:
can we create a util function to do it? e.g.
```
def parseTimestamp(formatter: TimestampFormatter, str: String, result:
LongWrapper): Boolean = {
try {
...
result.set(...)
true
} catch {
case e: DateTimeParseException =>
if (FAIL) throw ...
else false
case NonFatal(_) => false
}
}
```
and the caller side
```
val result = new LongWrapper
if (parseTimestamp(formatter, str, result)) {
result.get ... // whatever operations
} else {
null
}
```
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