I am attempting to create a new language implementation. The language is Andl (andl.org), so the handler is plandl. This is a question about executing SPI queries from inside plandl. The documentation makes it clear that SPI allows nested queries; that in some instances it will be necessary to call SPI_push() and SPI_pop(), but in others this will be handled automatically. Se http://www.postgresql.org/docs/9.5/interactive/spi-spi-push.html. It is an important design feature of plandl to allow nested queries. My question is: where are the transaction boundaries if the inner/outer query do or do not contain BEGIN/ABORT/COMMIT? Do they nest, or does an inner COMMIT finish a transaction started by an outer BEGIN, or is it ignored? Regards David M Bennett FACS Andl - A New Database Language - andl.org -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general