Provided by: postgresql-doc-11_11.5-1_all bug


       SPI_rollback - abort the current transaction


       void SPI_rollback(void)


       SPI_rollback rolls back the current transaction. It is approximately equivalent to running
       the SQL command ROLLBACK. After a transaction is rolled back, a new transaction has to be
       started using SPI_start_transaction before further database actions can be executed.

       This function can only be executed if the SPI connection has been set as nonatomic in the
       call to SPI_connect_ext.