@Override
    public boolean tableExists(String dbName, String tableName) {
        return paimonNativeCatalog.tableExists(Identifier.create(dbName, tableName));
    }
@Test
    public void testTableExists(@Mocked FileStoreTable paimonNativeTable) {
        new Expectations() {
            {
                paimonNativeCatalog.tableExists((Identifier) any);
                result = true;
            }
        };
        Assert.assertTrue(metadata.tableExists("db1", "tbl1"));
    }