branch-3.0: [opt](show) let all types table support show index #45861 (…

…#45895)

Cherry-picked from #45861

Co-authored-by: morrySnow <[email protected]>

fe/fe-core/src/main/java/org/apache/doris/qe/ShowExecutor.java

@@ -1257,17 +1257,20 @@ private void handleShowIndex() throws AnalysisException {
                 .getCatalogOrAnalysisException(showStmt.getTableName().getCtl())
                 .getDbOrAnalysisException(showStmt.getDbName());
         if (db instanceof Database) {
-            OlapTable table = db.getOlapTableOrAnalysisException(showStmt.getTableName().getTbl());
-            table.readLock();
-            try {
-                List<Index> indexes = table.getIndexes();
-                for (Index index : indexes) {
-                    rows.add(Lists.newArrayList(showStmt.getTableName().toString(), "", index.getIndexName(),
-                            "", String.join(",", index.getColumns()), "", "", "", "",
-                            "", index.getIndexType().name(), index.getComment(), index.getPropertiesString()));
+            TableIf table = db.getTableOrAnalysisException(showStmt.getTableName().getTbl());
+            if (table instanceof OlapTable) {
+                OlapTable olapTable = (OlapTable) table;
+                olapTable.readLock();
+                try {
+                    List<Index> indexes = olapTable.getIndexes();
+                    for (Index index : indexes) {
+                        rows.add(Lists.newArrayList(showStmt.getTableName().toString(), "", index.getIndexName(),
+                                "", String.join(",", index.getColumns()), "", "", "", "",
+                                "", index.getIndexType().name(), index.getComment(), index.getPropertiesString()));
+                    }
+                } finally {
+                    olapTable.readUnlock();
                 }
-            } finally {
-                table.readUnlock();
             }
         }
         resultSet = new ShowResultSet(showStmt.getMetaData(), rows);

regression-test/suites/nereids_syntax_p0/test_show_keys.groovy

@@ -0,0 +1,44 @@
+// 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.
+
+suite("test_show_keys") {
+    sql """
+        DROP TABLE IF EXISTS test_show_keys
+    """
+
+    sql """
+        DROP TABLE IF EXISTS test_show_keys_v
+    """
+
+    sql """
+        CREATE TABLE IF NOT EXISTS test_show_keys (
+            c1 int
+        ) DISTRIBUTED BY HASH(c1) PROPERTIES('replication_num'='1')
+    """
+
+    sql """
+        CREATE VIEW IF NOT EXISTS test_show_keys_v AS SELECT * FROM test_show_keys
+    """
+
+    sql """
+        SHOW KEYS FROM test_show_keys
+    """
+
+    sql """
+        SHOW KEYS FROM test_show_keys_v
+    """
+}