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Declaring empty, non-NULL array in plpgsql - Mailing list pgsql-general

From CSN
Subject Declaring empty, non-NULL array in plpgsql
Date
Msg-id 20031124051135.37111.qmail@web40601.mail.yahoo.com
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Responses Re: Declaring empty, non-NULL array in plpgsql  (Tom Lane <tgl@sss.pgh.pa.us>)
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Is there a way to declare an array in plpgsql so that
it's empty (not NULL)? The following causes arr to end
up being NULL:

arr varchar[];
-- do stuff with arr..
arr = array_append(arr, '','');


And this causes an unwanted element at the front:

arr varchar[] := array[''''];
-- do stuff with arr..
arr = array_append(arr, '','');


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