Useful PostgreSQL utilities
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BEGIN;
CREATE TEMP SEQUENCE tab_seq;
CREATE TEMP SEQUENCE seq_seq;
SELECT 'SET ADD TABLE (set id=@main, origin=@master, id='||nextval('tab_seq')||', fully qualified name = '''||fullname||''''||(case when have_pk then ');' else ', key='''||uniq_index||''');' end)
FROM (
SELECT
n.nspname||'.'||c.relname AS fullname,
(SELECT exists (SELECT indexrelid from pg_catalog.pg_index WHERE indisprimary is true AND indisvalid is true AND indrelid=c.oid)) AS have_pk,
(SELECT c1.relname from pg_catalog.pg_index i
JOIN pg_catalog.pg_class c1 ON c1.oid=i.indexrelid
WHERE
i.indisprimary is false AND
i.indisunique is true AND
i.indisvalid is true
AND i.indrelid=c.oid
AND NOT EXISTS (
SELECT i_attr.attname
FROM pg_catalog.pg_attribute t_attr
JOIN pg_catalog.pg_attribute i_attr ON i_attr.attname=t_attr.attname AND i_attr.attrelid = i.indexrelid
WHERE t_attr.attrelid = c.oid AND t_attr.attnotnull <> 't'
)
ORDER BY 1 LIMIT 1) AS uniq_index
FROM pg_catalog.pg_class c
JOIN pg_namespace n ON n.oid = c.relnamespace
WHERE c.relkind = 'r'::"char"
AND n.nspname NOT LIKE 'pg_%' AND n.nspname<>'_slony' AND n.nspname<>'information_schema'
ORDER BY have_pk desc, fullname
) AS t1
WHERE (have_pk IS TRUE OR uniq_index IS NOT NULL)
UNION ALL
SELECT 'SET ADD SEQUENCE (set id=@main, origin=@master, id='||nextval('seq_seq')||', fully qualified name = '''||fullname||''');'
FROM (
SELECT
n.nspname||'.'||c.relname AS fullname
FROM pg_catalog.pg_class c
JOIN pg_namespace n ON n.oid = c.relnamespace
WHERE c.relkind = 'S'::"char"
AND n.nspname NOT LIKE 'pg_%' AND n.nspname<>'_slony' AND n.nspname<>'information_schema'
ORDER BY fullname
) AS t1;
COMMIT;