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Update with.md #5759

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21 changes: 12 additions & 9 deletions docs/stable/sql/query_syntax/with.md
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Original file line number Diff line number Diff line change
Expand Up @@ -399,18 +399,21 @@ INSERT INTO edges VALUES
```

```sql
WITH RECURSIVE cc(id, comp) USING KEY (id) AS (
WITH RECURSIVE con_comp(id, comp) USING KEY (id) AS (
SELECT n.id, n.id AS comp
FROM nodes AS n
UNION
(SELECT DISTINCT ON (u.id) u.id, v.comp
FROM recurring.cc AS u, cc AS v, edges AS e
WHERE ((e.node1id, e.node2id) = (u.id, v.id)
OR (e.node2id, e.node1id) = (u.id, v.id))
AND v.comp < u.comp
ORDER BY u.id ASC, v.comp ASC)
UNION (
SELECT DISTINCT ON (previous_iter.id) previous_iter.id, initial_iter.comp
FROM
recurring.con_comp AS previous_iter,
con_comp AS initial_iter,
edges AS e
WHERE ((e.node1id, e.node2id) = (previous_iter.id, initial_iter.id)
OR (e.node2id, e.node1id) = (previous_iter.id, initial_iter.id))
AND initial_iter.comp < previous_iter.comp
ORDER BY initial_iter.id ASC, previous_iter.comp ASC)
)
TABLE cc
TABLE con_comp
ORDER BY id;
```

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