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gaoxueyu merged 1 commit into from
Jul 27, 2025
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Update maser branch 4.4.adoc #136

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2 changes: 1 addition & 1 deletion CN/modules/ROOT/pages/master/4.4.adoc
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Expand Up @@ -28,7 +28,7 @@ IvorySQL版本号由主要版本和次要版本组成。例如，IvorySQL 3.2

=== 通过pg_dumpall升级数据

传统的跨版本升级方法利用pg_dump/pg_dumpall逻辑备份到处数据库，然后在新版本中通过pg_restore进行还原。导出旧版本数据库时推荐使用新版本的pg_dump/pg_dumpall工具，可以利用最新的并行导出和还原功能，同时可以减少数据库膨胀问题。
传统的跨版本升级方法利用pg_dump/pg_dumpall逻辑备份导出数据库，然后在新版本中通过pg_restore进行还原。导出旧版本数据库时推荐使用新版本的pg_dump/pg_dumpall工具，可以利用最新的并行导出和还原功能，同时可以减少数据库膨胀问题。

​逻辑备份与还原非常简单但速度比较慢，停机时间取决于数据库的大小，因此适合中小型数据库的升级。

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