[GENERAL] Passing arrays to stored procedures

[William Garrison]

I have a stored procedure that takes a list of IDs and uses the ANY 
operator:

CREATE OR REPLACE FUNCTION CalculateTotals(
        customerList bytea[],
        out total bigint,
        out most_recent_login_date date)
AS $$
BEGIN
        SELECT
                SUM(totalsize), MAX(last_login)
        INTO
                $2,$3
        FROM
                customer
        WHERE
                customerid = ANY($1);
END;
$$ LANGUAGE 'plpgsql' STABLE;

I'm using npgsql and C#, and I've realized it doesn't support passing 
arrays.  Barring things like updating npgsql, what form of hackiness 
would work best here?

The customerIDs are GUIDs represented as 16-byte arrays.  I can pass 
them as encoded strings separated by commas or some such silliness.  But 
I don't see a nice clean split() function that returns me an array. :-(

I'm trying to find some way to pass a postgres array constructor syntax 
and have that evaluated, like ARRAY['binary':bytea,...,...] or 
{...,...,...} something like that.

Does anyone have any suggestions?

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