Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/16621#discussion_r96785980
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/SessionCatalog.scala
---
@@ -118,6 +118,14 @@ class SessionCatalog(
}
/**
+ * A cache of qualified table name to table relation plan.
+ */
+ val tableRelationCache: Cache[QualifiedTableName, LogicalPlan] = {
+ // TODO: create a config instead of hardcode 1000 here.
--- End diff --
Yep. Sure~
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