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Re: Question on Rules

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-----Original Message-----
From: pgsql-general-owner@xxxxxxxxxxxxxx [mailto:pgsql-general-owner@xxxxxxxxxxxxxx] On Behalf Of mgould@xxxxxxxxxxxxxxxxxxxx
Sent: Saturday, February 18, 2012 5:17 AM
To: pgsql-general@xxxxxxxxxxxxxx
Subject:  Question on Rules

I am creating a rule which will copy a record when it is changed to a audittable.  My question is that the first column is a UUID data type with a defined as auditaccessorid uuid DEFAULT
isscontrib.uuid_generate_v4() NOT NULL,

Right now I've got that set to NULL to allow the parser to "compile". 
What value should I have in here since I want a newly created UUID?

CREATE RULE log_accessor AS ON UPDATE TO iss.accessor
    WHERE NEW.* <> OLD.*
    DO INSERT INTO iss.auditaccessor VALUES (NULL,
                                          'C',
                                          new.loaddtlid, 
                                          new.seqno, 
                                          new.billable,
                                          new.payind,
                                          new.code,
                                          new.description, 
                                          new.ref,
                                          new.tractororcarrierflag, 
                                          new.tractororcarrierno,
                                          new.tractorpct,
                                          new.charge,
                                          new.type,
                                          new.checkdate,
                                          new.checkno,
                                          new.processed,
                                          new.itemflag, 
                                          new.tractortermloc,
                                          new.cost,
                                          new.batchno,
                                          new.editdatetime,  
                                          new.edituser);

Best Regards,
 
Michael Gould
Intermodal Software Solutions, LLC
904-226-0978


--------------------------------------------------------------------

INSERT INTO table (serial_col1) VALUES (DEFAULT);

Also, I presume you have a good reason for using a RULE instead of a TRIGGER?  If not you should default to a TRIGGER for this kind of behavior.

David J.



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