SPI_rollback, SPI_rollback_and_chain — abort the current transaction
void SPI_rollback(void)
void SPI_rollback_and_chain(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.
SPI_rollback_and_chain is the same, but a new
transaction is immediately started with the same transaction
characteristics as the just finished one, like with the SQL command
ROLLBACK AND CHAIN.
These functions can only be executed if the SPI connection has been set as
nonatomic in the call to SPI_connect_ext.