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sqldb+graph/db: prune graph nodes in a single query

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Update the pruneGraphNodes routine to prune the graph nodes in a single
query instead of two.
This commit is contained in:
Elle Mouton
2025-06-26 10:10:10 +02:00
parent 714e528a3a
commit f1b7ccc6b2
4 changed files with 65 additions and 81 deletions
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30
sqldb/sqlc/queries/graph.sql
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@@ -65,21 +65,21 @@ SELECT EXISTS (
AND n.pub_key = $1
);
-- name: GetUnconnectedNodes :many
SELECT n.id, n.pub_key
FROM nodes n
-- Select all nodes that do not have any channels.
WHERE NOT EXISTS (
SELECT 1
FROM channels c
WHERE c.node_id_1 = n.id OR c.node_id_2 = n.id
)
-- Ignore any of our source nodes.
AND NOT EXISTS (
SELECT 1
FROM source_nodes sn
WHERE sn.node_id = n.id
);
-- name: DeleteUnconnectedNodes :many
DELETE FROM nodes
WHERE
-- Ignore any of our source nodes.
NOT EXISTS (
SELECT 1
FROM source_nodes sn
WHERE sn.node_id = nodes.id
)
-- Select all nodes that do not have any channels.
AND NOT EXISTS (
SELECT 1
FROM channels c
WHERE c.node_id_1 = nodes.id OR c.node_id_2 = nodes.id
) RETURNING pub_key;
-- name: DeleteNodeByPubKey :execresult
DELETE FROM nodes