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CatalogHelper

CatalogHelper is a Scala implicit class that adds extensions methods to CatalogPlugin.

Tip

Learn more on implicit classes in the official documentation of Scala 2.

Creating Instance

CatalogHelper takes the following to be created:

asNamespaceCatalog

asNamespaceCatalog: SupportsNamespaces

asNamespaceCatalog returns the CatalogPlugin if it is a SupportsNamespaces or throws an AnalysisException otherwise:

Cannot use catalog [name]: does not support namespaces

asNamespaceCatalog is used when:

asTableCatalog

asTableCatalog: TableCatalog

asTableCatalog returns the CatalogPlugin if it is a TableCatalog or throws an AnalysisException otherwise:

Cannot use catalog [name]: not a TableCatalog

asTableCatalog is used when:


Last update: 2020-12-28