presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/cache/CachingHiveMetastore.java/CachingHiveMetastore/dropTable
class CachingHiveMetastore:    @Override
    public void dropTable(HiveIdentity identity, String databaseName, String tableName, boolean deleteData)
    {
        identity = updateIdentity(identity);
        try {
            delegate.dropTable(identity, databaseName, tableName, deleteData);
        }
        finally {
            invalidateTable(databaseName, tableName);
        }
    }