[SPARK-56672][SQL] Rename TableViewCatalog.listRelationSummaries to listTableAndViewSummaries

sql/catalyst/src/main/java/org/apache/spark/sql/connector/catalog/TableViewCatalog.java

@@ -109,8 +109,8 @@
  *       a regular {@link Table} for a table, or a {@link MetadataTable} wrapping a
  *       {@link ViewInfo} for a view. Saves the {@code loadTable} -> {@code loadView} fallback
  *       on a cold cache.</li>
- *   <li>{@link #listRelationSummaries(String[])} -- a unified listing of tables and views with the
- *       kind preserved on each {@link TableSummary}. Default impl performs both
+ *   <li>{@link #listTableAndViewSummaries(String[])} -- a unified listing of tables and views
+ *       with the kind preserved on each {@link TableSummary}. Default impl performs both
  *       {@link TableCatalog#listTableSummaries} and {@link ViewCatalog#listViews}; override to
  *       fetch in one round trip.</li>
  * </ul>
@@ -149,7 +149,7 @@ public interface TableViewCatalog extends TableCatalog, ViewCatalog {
    * @throws NoSuchTableException if a table listed by the underlying enumeration disappears
    *                              before its summary can be assembled (default impl only)
    */
-  default TableSummary[] listRelationSummaries(String[] namespace)
+  default TableSummary[] listTableAndViewSummaries(String[] namespace)
       throws NoSuchNamespaceException, NoSuchTableException {
     TableSummary[] tableSummaries = listTableSummaries(namespace);
     Identifier[] viewIdentifiers = listViews(namespace);

sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/ShowTablesExec.scala

@@ -30,7 +30,7 @@ import org.apache.spark.sql.execution.LeafExecNode
  * Physical plan node for showing tables.
  *
  * For a [[TableViewCatalog]] (one that exposes both tables and views in a shared identifier
- * namespace), this routes through [[TableViewCatalog#listRelationSummaries]] so that views are
+ * namespace), this routes through [[TableViewCatalog#listTableAndViewSummaries]] so that views are
  * included in the listing -- matching the v1 `SHOW TABLES` semantics where views appear
  * alongside tables. Pure [[TableCatalog]] catalogs continue to use `listTables` and return
  * tables only.
@@ -44,7 +44,8 @@ case class ShowTablesExec(
     val rows = new ArrayBuffer[InternalRow]()
 
     val identifiers: Array[Identifier] = catalog match {
-      case mc: TableViewCatalog => mc.listRelationSummaries(namespace.toArray).map(_.identifier())
+      case mc: TableViewCatalog =>
+        mc.listTableAndViewSummaries(namespace.toArray).map(_.identifier())
       case _ => catalog.listTables(namespace.toArray)
     }
     identifiers.foreach { ident =>

sql/core/src/test/scala/org/apache/spark/sql/connector/DataSourceV2MetadataViewSuite.scala

@@ -377,7 +377,7 @@ class DataSourceV2MetadataViewSuite extends QueryTest with SharedSparkSession {
 
   test("SHOW TABLES on a TableViewCatalog returns both tables and views (v1-parity)") {
     // For a `TableViewCatalog` (a catalog exposing both tables and views in a shared
-    // identifier namespace), SHOW TABLES routes through `listRelationSummaries` so views
+    // identifier namespace), SHOW TABLES routes through `listTableAndViewSummaries` so views
     // appear alongside tables -- matching the v1 SHOW TABLES output. Pure `TableCatalog`
     // catalogs (no view mixin) continue to use `listTables` and return tables only.
     seedV2View("v_in_show_tables")