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    <title>Sequence on dbalog.dev</title>
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      <title>PostgreSQL 19 — logical replication이 드디어 sequence를 따라간다</title>
      <link>https://dbalog.dev/posts/postgresql-19-logical-replication-sequences/</link>
      <pubDate>Fri, 26 Jun 2026 10:00:00 +0900</pubDate>
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      <description>PostgreSQL 19부터 logical replication이 sequence 값을 subscriber로 동기화한다. failover 직후 첫 INSERT가 duplicate key로 터지던 오래된 함정이 ALL SEQUENCES 절과 REFRESH SEQUENCES 명령으로 정리됐다. 다만 연속 동기화가 아니라 시점 동기화라서, cutover runbook에 들어갈 자리가 정해져 있다.</description>
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