Jesse_Chen
19 lines
479 B
SQL
19 lines
479 B
SQL
lock table identity.verifications in share row exclusive mode;
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with ranked as (
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select
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id,
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row_number() over (
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partition by identifier
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order by created_at desc, id desc
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) as position
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from identity.verifications
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)
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delete from identity.verifications verification
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using ranked
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where verification.id = ranked.id
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and ranked.position > 1;
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create unique index if not exists identity_verifications_identifier_key
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on identity.verifications (identifier);
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