Re: retrieving fields in plpgsql

Started by Tom Laneabout 23 years ago1 messagesgeneral
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#1Tom Lane
tgl@sss.pgh.pa.us

James Gregory <james@anchor.net.au> writes:

I need to be able to get the value of a field in the new record provided
to triggers. The catch is that the name of the variable that I need will
be constructed at run time, it will then be used as part of a dynamic
query. So basically I want
x := "fieldname";
y := new.x;
Can it be done? how?

I think pltcl can do this. plpgsql is too eager to precompile things.
Of course, pltcl is a bit slower by the same token (but if you're
desperate for speed, you should be writing the trigger in C ...)

regards, tom lane