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BEGIN;
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LOCK TABLE authorizations IN SHARE ROW EXCLUSIVE MODE;
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|
INSERT INTO authorizations
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|
(slug, shared_key, public_key)
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|
SELECT 'xxx-client-1', 'xxxx-yyyy-zzzz', 'somehash'
|
|
WHERE
|
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NOT EXISTS (
|
|
SELECT slug FROM authorizations WHERE slug = 'xxx-client-1'
|
|
);
|
|
COMMIT;
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