[GENERAL] Question about accessing current row data inside trigger

[peter Willis]

Hello,

I have a trigger function written in C.
The trigger function is called via:

CREATE TRIGGER after_update AFTER UPDATE ON some_table
   FOR EACH ROW EXECUTE PROCEDURE  my_trigger_function();

   Since the trigger is called after each row update the actual row data
should be available in some way to the trigger.
   What functionality (SPI ?) do I use to use the column values from
the current row in the actual trigger?

thanks for any insight,

Peter

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