Created
January 17, 2011 18:23
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http://www.alberton.info/postgresql_meta_info.html | |
SELECT tc.constraint_name, | |
tc.constraint_type, | |
tc.table_name, | |
kcu.column_name, | |
tc.is_deferrable, | |
tc.initially_deferred, | |
rc.match_option AS match_type, | |
rc.update_rule AS on_update, | |
rc.delete_rule AS on_delete, | |
ccu.table_name AS references_table, | |
ccu.column_name AS references_field | |
FROM information_schema.table_constraints tc | |
LEFT JOIN information_schema.key_column_usage kcu | |
ON tc.constraint_catalog = kcu.constraint_catalog | |
AND tc.constraint_schema = kcu.constraint_schema | |
AND tc.constraint_name = kcu.constraint_name | |
LEFT JOIN information_schema.referential_constraints rc | |
ON tc.constraint_catalog = rc.constraint_catalog | |
AND tc.constraint_schema = rc.constraint_schema | |
AND tc.constraint_name = rc.constraint_name | |
LEFT JOIN information_schema.constraint_column_usage ccu | |
ON rc.unique_constraint_catalog = ccu.constraint_catalog | |
AND rc.unique_constraint_schema = ccu.constraint_schema | |
AND rc.unique_constraint_name = ccu.constraint_name |
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