ulysses-you commented on a change in pull request #26627: [SPARK-29987][SQL]
Add CatalogTable cache in SessionCatalog to improve performance
URL: https://github.com/apache/spark/pull/26627#discussion_r349381340
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/SessionCatalog.scala
##########
@@ -1484,6 +1511,26 @@ class SessionCatalog(
require(functionBuilder.isDefined, s"built-in function '$f' is missing
function builder")
functionRegistry.registerFunction(f, expressionInfo.get,
functionBuilder.get)
}
+ invalidateAllCachedCatalogTable()
+ }
+
+ private[sql] def getCachedCatalogTable(qtn: QualifiedTableName):
Option[CatalogTable] = {
+ cachedCatalogTable.getIfPresent(qtn) match {
+ case null => None
+ case catalogTable => Some(catalogTable)
+ }
+ }
+
+ private[sql] def cacheCatalogTable(qtn: QualifiedTableName, catalogTable:
CatalogTable): Unit = {
Review comment:
OK, fix these.
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