diff --git a/sql/catalyst/src/main/java/org/apache/spark/sql/catalog/v2/TableCatalog.java b/sql/catalyst/src/main/java/org/apache/spark/sql/catalog/v2/TableCatalog.java
index 4b9498d601c26..6e3851de42f80 100644
--- a/sql/catalyst/src/main/java/org/apache/spark/sql/catalog/v2/TableCatalog.java
+++ b/sql/catalyst/src/main/java/org/apache/spark/sql/catalog/v2/TableCatalog.java
@@ -89,7 +89,7 @@ default boolean tableExists(Identifier ident) {
* @param partitions transforms to use for partitioning data in the table
* @param properties a string map of table properties
* @return metadata for the new table
- * @throws TableAlreadyExistsException If a table already exists for the identifier
+ * @throws TableAlreadyExistsException If a table or view already exists for the identifier
* @throws UnsupportedOperationException If a requested partition transform is not supported
* @throws NoSuchNamespaceException If the identifier namespace does not exist (optional)
*/
diff --git a/sql/catalyst/src/main/java/org/apache/spark/sql/catalog/v2/View.java b/sql/catalyst/src/main/java/org/apache/spark/sql/catalog/v2/View.java
new file mode 100644
index 0000000000000..26961d6c82786
--- /dev/null
+++ b/sql/catalyst/src/main/java/org/apache/spark/sql/catalog/v2/View.java
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.sql.catalog.v2;
+
+public interface View {
+ /**
+ * A name to identify this view. Implementations should provide a meaningful name, like the
+ * database and view name from the catalog.
+ */
+ String name();
+
+ /**
+ * SQL text that defines the view.
+ *
+ * @return the SQL query text that defines this view
+ */
+ String sql();
+}
diff --git a/sql/catalyst/src/main/java/org/apache/spark/sql/catalog/v2/ViewCatalog.java b/sql/catalyst/src/main/java/org/apache/spark/sql/catalog/v2/ViewCatalog.java
new file mode 100644
index 0000000000000..70e2bd2f672a7
--- /dev/null
+++ b/sql/catalyst/src/main/java/org/apache/spark/sql/catalog/v2/ViewCatalog.java
@@ -0,0 +1,91 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.sql.catalog.v2;
+
+import org.apache.spark.sql.catalyst.analysis.NoSuchNamespaceException;
+import org.apache.spark.sql.catalyst.analysis.NoSuchViewException;
+import org.apache.spark.sql.catalyst.analysis.ViewAlreadyExistsException;
+
+/**
+ * Catalog methods for working with Views.
+ */
+public interface ViewCatalog extends CatalogPlugin {
+ /**
+ * List the views in a namespace from the catalog.
+ *
+ * If the catalog supports tables, this must return identifiers for only views and not tables.
+ *
+ * @param namespace a multi-part namespace
+ * @return an array of Identifiers for views
+ * @throws NoSuchNamespaceException If the namespace does not exist (optional).
+ */
+ Identifier[] listViews(String[] namespace) throws NoSuchNamespaceException;
+
+ /**
+ * Load view metadata by {@link Identifier identifier} from the catalog.
+ *
+ * If the catalog supports tables and contains a table for the identifier and not a view, this
+ * must throw {@link NoSuchViewException}.
+ *
+ * @param ident a view identifier
+ * @return the view's metadata
+ * @throws NoSuchViewException If the view doesn't exist or is a table
+ */
+ View loadView(Identifier ident) throws NoSuchViewException;
+
+ /**
+ * Test whether a view exists using an {@link Identifier identifier} from the catalog.
+ *
+ * If the catalog supports views and contains a view for the identifier and not a table, this
+ * must return false.
+ *
+ * @param ident a view identifier
+ * @return true if the view exists, false otherwise
+ */
+ default boolean viewExists(Identifier ident) {
+ try {
+ return loadView(ident) != null;
+ } catch (NoSuchViewException e) {
+ return false;
+ }
+ }
+
+ /**
+ * Create a view in the catalog.
+ *
+ * @param ident a view identifier
+ * @param sql SQL text that defines the view
+ * @return metadata for the new view
+ * @throws ViewAlreadyExistsException If a view or table already exists for the identifier
+ * @throws NoSuchNamespaceException If the identifier namespace does not exist (optional)
+ */
+ View createView(
+ Identifier ident,
+ String sql) throws ViewAlreadyExistsException, NoSuchNamespaceException;
+
+ /**
+ * Drop a view in the catalog.
+ *
+ * If the catalog supports tables and contains a table for the identifier and not a view, this
+ * must not drop the table and must return false.
+ *
+ * @param ident a view identifier
+ * @return true if a view was deleted, false if no view exists for the identifier
+ */
+ boolean dropView(Identifier ident);
+}
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/AlreadyExistException.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/AlreadyExistException.scala
index f5e9a146bf359..9eb140c81173a 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/AlreadyExistException.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/AlreadyExistException.scala
@@ -45,6 +45,12 @@ class TableAlreadyExistsException(message: String) extends AnalysisException(mes
}
}
+class ViewAlreadyExistsException(message: String) extends TableAlreadyExistsException(message) {
+ def this(tableIdent: Identifier) = {
+ this(s"View ${tableIdent.quoted} already exists")
+ }
+}
+
class TempTableAlreadyExistsException(table: String)
extends TableAlreadyExistsException(s"Temporary view '$table' already exists")
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/NoSuchItemException.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/NoSuchItemException.scala
index 7ac8ae61ed537..b4171660b2e1b 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/NoSuchItemException.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/NoSuchItemException.scala
@@ -46,6 +46,12 @@ class NoSuchTableException(message: String) extends AnalysisException(message) {
}
}
+class NoSuchViewException(message: String) extends NoSuchTableException(message) {
+ def this(tableIdent: Identifier) = {
+ this(s"View ${tableIdent.quoted} not found")
+ }
+}
+
class NoSuchPartitionException(
db: String,
table: String,