presto-kinesis/src/main/java/io/prestosql/plugin/kinesis/KinesisMetadata.java/KinesisMetadata/listSchemaNames
class KinesisMetadata:    @Override
    public List<String> listSchemaNames(ConnectorSession session)
    {
        return tableDescriptionSupplier.get().keySet().stream()
                .map(SchemaTableName::getSchemaName)
                .collect(toImmutableList());
    }