hugobessa

SELECT tc.table_schema, tc.constraint_name, tc.table_name, kcu.column_name, ccu.table_name
AS foreign_table_name, ccu.column_name AS foreign_column_name, cc.is_nullable AS column_is_nullable
FROM information_schema.table_constraints tc
JOIN information_schema.key_column_usage kcu ON tc.constraint_name = kcu.constraint_name
JOIN information_schema.constraint_column_usage ccu ON ccu.constraint_name = tc.constraint_name
JOIN information_schema.columns cc ON cc.column_name = kcu.column_name AND cc.table_name = kcu.table_name
WHERE constraint_type = 'FOREIGN KEY'
AND ccu.table_name='myTableName' -- replace this string with your table name