Github user wzhfy commented on a diff in the pull request:
https://github.com/apache/spark/pull/16323#discussion_r93740553
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/interface.scala
---
@@ -237,6 +239,38 @@ case class CatalogTable(
}
+/**
+ * This class of statistics is used in [[CatalogTable]] to interact with
metastore.
+ */
+case class CatalogStatistics(
+ sizeInBytes: BigInt,
+ rowCount: Option[BigInt] = None,
+ colStats: Map[String, ColumnStat] = Map.empty) {
+
+ /**
+ * Convert [[CatalogStatistics]] to [[Statistics]], and match column
stats to attributes based
+ * on column names.
+ */
+ def convert(attributes: Seq[Attribute]): Statistics = {
--- End diff --
That's a lot better, thanks!
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