gatorsmile commented on a change in pull request #23662:
[SPARK-26740][SPARK-26654][SQL] Make statistics of timestamp/date columns
independent from system time zones
URL: https://github.com/apache/spark/pull/23662#discussion_r261012565
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/interface.scala
##########
@@ -415,7 +415,8 @@ case class CatalogColumnStat(
nullCount: Option[BigInt] = None,
avgLen: Option[Long] = None,
maxLen: Option[Long] = None,
- histogram: Option[Histogram] = None) {
+ histogram: Option[Histogram] = None,
+ version: Int = CatalogColumnStat.VERSION) {
Review comment:
We need to document it. Just like what we did for CatalogTable`s
createVersion. The future coder need to understand how to use it and change it.
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