Re: function returning array

Dennis wrote:
> pg 7.4.1
>
> I should have listed the source for the function. Here is a simplified
> parseString function and the foo that calls it.
>
> dennis=# create or replace function parseString (varchar, varchar)
> dennis-# RETURNS varchar[] AS '
> dennis'# DECLARE
> dennis'# pParsed varchar[];

Make that last line:
pParsed varchar[] := ''{}'';

That initializes pParsed to an *empty* array. Otherwise pParsed is NULL,
and when you attempt to extend a NULL array, e.g. "pParsed[1] =
''blah''" you still get NULL. It is similar to this:

regression=# select NULL || 'blah';
?column?
----------

(1 row)

HTH,

Joe