MaxGekk commented on a change in pull request #27524: [WIP][SQL] Support
`SimpleDateFormat` and `FastDateFormat` as legacy date/timestamp formatters
URL: https://github.com/apache/spark/pull/27524#discussion_r377477732
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File path: sql/catalyst/src/main/scala/org/apache/spark/sql/types/Decimal.scala
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@@ -541,7 +541,7 @@ object Decimal {
/** Maximum number of decimal digits a Long can represent */
val MAX_LONG_DIGITS = 18
- private val POW_10 = Array.tabulate[Long](MAX_LONG_DIGITS + 1)(i =>
math.pow(10, i).toLong)
+ val POW_10 = Array.tabulate[Long](MAX_LONG_DIGITS + 1)(i => math.pow(10,
i).toLong)
Review comment:
`POW_10` is need in the wrapper of `FastDateFormat` to support
parsing/formatting in microsecond precision. Similar changes were made in Spark
2.4.
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