Postgres: Find table foreign keys (Faster alternative)
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Najera
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Published on 2012-11-15T15:15:59Z
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2012/11/15
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Is there faster alternative to this:
Take almost 1 minute in our server.
SELECT
tc.constraint_name, tc.table_name, kcu.column_name,
ccu.table_name AS foreign_table_name,
ccu.column_name AS foreign_column_name
FROM
information_schema.table_constraints AS tc
JOIN information_schema.key_column_usage AS kcu ON tc.constraint_name = kcu.constraint_name
JOIN information_schema.constraint_column_usage AS ccu ON ccu.constraint_name = tc.constraint_name
WHERE constraint_type = 'FOREIGN KEY' AND tc.table_name='mytable';
Maybe using pg_class metadata?, thanks.
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