presto-redis/src/main/java/io/prestosql/plugin/redis/RedisTableDescriptionSupplier.java/RedisTableDescriptionSupplier/parseTableName
class RedisTableDescriptionSupplier:    private static SchemaTableName parseTableName(String schemaTableName)
    {
        checkArgument(!isNullOrEmpty(schemaTableName), "schemaTableName is null or is empty");
        List<String> parts = Splitter.on('.').splitToList(schemaTableName);
        checkArgument(parts.size() == 2, "Invalid schemaTableName: %s", schemaTableName);
        return new SchemaTableName(parts.get(0), parts.get(1));
    }