MaxGekk commented on a change in pull request #26507: [WIP][SQL][2.4] Parse
timestamps in microsecond precision in JSON datasource
URL: https://github.com/apache/spark/pull/26507#discussion_r345990009
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala
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@@ -1164,4 +1166,30 @@ object DateTimeUtils {
threadLocalTimestampFormat.remove()
threadLocalDateFormat.remove()
}
+
+ class MicrosCalendar(tz: TimeZone) extends GregorianCalendar(tz, Locale.US) {
+ def getMicros(): SQLTimestamp = {
Review comment:
This check fails unfortunately:
```
check("yyyy-MM-dd'T'HH:mm:ss.SSSSSSXXX",
"2019-10-14T09:39:07.000010Z", "2019-10-14T09:39:07.000010Z")
```
```
Expected :1571045947000010
Actual :1571045947010000
```
because`.000010` is parsed to `10` inside of `SimpleDateFormat`.
I think this approach cannot work. :-(
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