SPI_register_trigger_data — make ephemeral trigger data available in SPI queries
int SPI_register_trigger_data(TriggerData *
SPI_register_trigger_data makes any ephemeral relations captured by a trigger available to queries planned and executed through the current SPI connection. Currently, this means the transition tables captured by an
AFTER trigger defined with a
REFERENCING OLD/NEW TABLE AS ... clause. This function should be called by a PL trigger handler function after connecting.
TriggerData object passed to a trigger handler function as
If the execution of the command was successful then the following (nonnegative) value will be returned:
if the captured trigger data (if any) has been successfully registered
On error, one of the following negative values is returned:
if called from an unconnected procedure
if the name of any trigger data transient relation is already registered for this connection
If you see anything in the documentation that is not correct, does not match your experience with the particular feature or requires further clarification, please use this form to report a documentation issue.