Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/16826#discussion_r102292237
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/SessionCatalog.scala
---
@@ -1178,4 +1178,36 @@ class SessionCatalog(
}
}
+ /**
+ * Get an identical copy of the `SessionCatalog`.
+ * The temporary tables and function registry are retained.
+ * The table relation cache will not be populated.
+ * @note `externalCatalog` and `globalTempViewManager` are from shared
state, don't need deep copy
+ * `FunctionResourceLoader` is effectively stateless, also does not need
deep copy.
+ * All arguments passed in should be associated with a particular
`SparkSession`.
+ */
+ def copy(
+ conf: CatalystConf,
+ hadoopConf: Configuration,
+ functionRegistry: FunctionRegistry,
+ parser: ParserInterface): SessionCatalog = {
+
+ val catalog = new SessionCatalog(
+ externalCatalog,
+ globalTempViewManager,
+ functionResourceLoader,
+ functionRegistry,
+ conf,
+ hadoopConf,
+ parser)
+
+ synchronized {
--- End diff --
`synchronized` -> `catalog .synchronized`
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
