Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/14712#discussion_r75573529
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/LogicalRelation.scala
---
@@ -72,9 +72,12 @@ case class LogicalRelation(
// expId can be different but the relation is still the same.
override lazy val cleanArgs: Seq[Any] = Seq(relation)
- @transient override lazy val statistics: Statistics = Statistics(
- sizeInBytes = BigInt(relation.sizeInBytes)
- )
+ // statistics inherited from a MetastoreRelation
+ @transient var inheritedStats: Option[Statistics] = None
--- End diff --
The `ExternalCatalog` APIs define the methods to interacts with the
external catalog. Spark 2.0 provides two implementations, including
`HiveExternalCatalog` and `InMemoryCatalog`. The default is `InMemoryCatalog`
if the build is not with the Hive profile. Users are able to run `ANALYZE
TABLE` against the tables when we using `InMemoryCatalog`.
You can try this command when you using `InMemoryCatalog`. You might
understand what I said above.
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