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create temp table t as ( select 'james'::text as fn, array ['bond', 'milner'] as ln ); create temp table tt as ( select 'james'::text as fn, array ['mcface', 'milner'] as ln ); -- expected value: james, 3
SELECT 1
select x.fn, count(elem) from ( select fn, unnest(ln) as elem from t union select fn, unnest(ln) as elem from tt ) as x group by x.fn
fn
count
james
3
SELECT 1