chore: Include RENAME in DDL statement list (#2784)

Fixes #2783

Author: killah777

google-cloud-spanner/src/main/java/com/google/cloud/spanner/connection/AbstractStatementParser.java

@@ -356,7 +356,7 @@ ClientSideStatement getClientSideStatement() {
   }
 
   static final Set<String> ddlStatements =
-      ImmutableSet.of("CREATE", "DROP", "ALTER", "ANALYZE", "GRANT", "REVOKE");
+      ImmutableSet.of("CREATE", "DROP", "ALTER", "ANALYZE", "GRANT", "REVOKE", "RENAME");
   static final Set<String> selectStatements = ImmutableSet.of("SELECT", "WITH", "SHOW");
   static final Set<String> dmlStatements = ImmutableSet.of("INSERT", "UPDATE", "DELETE");
   private final Set<ClientSideStatementImpl> statements;

google-cloud-spanner/src/test/java/com/google/cloud/spanner/connection/StatementParserTest.java

@@ -553,6 +553,19 @@ public void testIsDdlStatement() {
     assertTrue(parser.parse(Statement.of("\t ANALYZE\n ")).isDdl());
     assertTrue(parser.parse(Statement.of("/* This is a comment */ ANALYZE ")).isDdl());
     assertTrue(parser.parse(Statement.of("-- comment\n ANALYZE ")).isDdl());
+    assertTrue(parser.parse(Statement.of("RENAME TABLE foo TO foo2")).isDdl());
+    assertTrue(
+        parser.parse(Statement.of("/* Fix typo */ RENAME TABLE studens TO students")).isDdl());
+    assertTrue(
+        parser.parse(Statement.of("/* Fix typo */ rename TABLE studens TO students")).isDdl());
+    assertTrue(
+        parser.parse(Statement.of("RENAME INDEX idx_foo TO idx_students_last_name")).isDdl());
+    assertTrue(
+        parser.parse(Statement.of("/* Fix typo */ Rename TABLE studens TO students")).isDdl());
+    assertTrue(
+        parser
+            .parse(Statement.of("   \t\nRENAME\n  INDEX idx_foo TO idx_students_last_name"))
+            .isDdl());
   }
 
   @Test