Re: [GENERAL] Question about accessing current row data inside trigger
Hello, This issue is resolved. I was using the wrong struct. Peter Tom Lane wrote: peter Willis [EMAIL PROTECTED] writes: I have a trigger function written in C. ... Since the trigger is called after each row update the actual row data should be available in some way to the trigger. Sure: tg_trigtuple or tg_newtuple depending on which state you want. See http://www.postgresql.org/docs/8.0/static/trigger-interface.html regards, tom lane ---(end of broadcast)--- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
Re: [GENERAL] Question about accessing current row data inside trigger
Hello, I resolved this issue already. The trigger now works fine. I was looking at the wrong structure. Thanks, Peter Michael Fuhr wrote: On Tue, Mar 08, 2005 at 11:37:14AM -0800, peter Willis wrote: 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? See Writing Trigger Functions in C and C-Language Functions in the documentation. Here are links to documentation for the latest version of PostgreSQL: http://www.postgresql.org/docs/8.0/interactive/trigger-interface.html http://www.postgresql.org/docs/8.0/interactive/xfunc-c.html ---(end of broadcast)--- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
Re: [GENERAL] Question about accessing current row data inside trigger
On Tue, Mar 08, 2005 at 11:37:14AM -0800, peter Willis wrote: 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? See Writing Trigger Functions in C and C-Language Functions in the documentation. Here are links to documentation for the latest version of PostgreSQL: http://www.postgresql.org/docs/8.0/interactive/trigger-interface.html http://www.postgresql.org/docs/8.0/interactive/xfunc-c.html -- Michael Fuhr http://www.fuhr.org/~mfuhr/ ---(end of broadcast)--- TIP 7: don't forget to increase your free space map settings
Re: [GENERAL] Question about accessing current row data inside trigger
peter Willis [EMAIL PROTECTED] writes: I have a trigger function written in C. ... Since the trigger is called after each row update the actual row data should be available in some way to the trigger. Sure: tg_trigtuple or tg_newtuple depending on which state you want. See http://www.postgresql.org/docs/8.0/static/trigger-interface.html regards, tom lane ---(end of broadcast)--- TIP 7: don't forget to increase your free space map settings
