Re: plpgsql handling a set of values

pobox(at)verysmall(dot)org wrote:
> I am writing a plpgsql (PostgreSQL 8.x) trigger function that should do
> something on a number of records. The records are in a very simple table
> with two columns - 'parent_id' and 'child_id'. A 'child' can be as well
> a 'parent' to one or more children - in this case its ID appears as many
> times in the 'parent_id' column as many children it has. The input the
> plpgsql function gets is the ID of the top 'parent'. Then it should find
> all children and do something with them.

I think you should have a look at the ltree contrib package. It
implements tree-like structures, and probably makes your problem much
simpler.

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Alban Hertroys
alban(at)magproductions(dot)nl

magproductions b.v.

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