cloud-fan commented on a change in pull request #27900: [SPARK-31100][SQL]
Check namespace existens when setting namespace
URL: https://github.com/apache/spark/pull/27900#discussion_r393437946
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/connector/catalog/CatalogManager.scala
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@@ -106,13 +106,14 @@ class CatalogManager(
}
def setCurrentNamespace(namespace: Array[String]): Unit = synchronized {
- if (currentCatalog.name() == SESSION_CATALOG_NAME) {
- if (namespace.length != 1) {
+ currentCatalog match {
+ case _ if currentCatalog.name() == SESSION_CATALOG_NAME &&
namespace.length == 1 =>
+ v1SessionCatalog.setCurrentDatabase(namespace.head)
+ case catalog: SupportsNamespaces if catalog.namespaceExists(namespace) =>
+ logInfo(s"set current namespace to ${namespace.mkString(".")}")
+ _currentNamespace = Some(namespace)
+ case _ =>
throw new NoSuchNamespaceException(namespace)
Review comment:
It's very likely that the underlying catalog can't report namespace
existence directly, but can throw namespace not found error when calling APIs
like `loadTable(ident)`
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