In response to Igor Katson :
> I think I need a built-in function to make a column from an array, like
> in the backwards operation SELECT ARRAY(column)
By David Fetter:
CREATE OR REPLACE FUNCTION unnest(ANYARRAY) RETURNS SETOF ANYELEMENT
LANGUAGE SQL AS $$SELECT $1[i] FROM
generate_series(array_lower($1,1),array_upper($1,1)) i;$$;
HTH, Andreas
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Andreas Kretschmer
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