PostgreSQL 10 Beta 3 已发布，这是 PostgreSQL 10 的第三个 beta 版，此版本包含 PostgreSQL 10 最终将提供的所有可用功能的预览，还包括对第二个 beta 版本中发现的许多问题的修复。 升级到 Beta3 从 PostgreSQL 10 beta1、beta2 进行升级 通过使用 pg_dump/pg_restore 或 pg_upgrade 从更早的版本进行升级 自 Beta 1 以来的变更 任何针对 9.6 或更早版本，且会影响 10 的错误修复程序都包含在 beta3 中，还修复了部分用户和贡献者反馈的关于 beta2 的错误，包括： hash: Fix write-ahead logging bugs related to init forks Fix oddity in error handling of constraint violation in ExecConstraints for partitioned tables Use a real RT index when setting up partition tuple routing Fix serious performance problems in json(b) to_tsvector() Fix problems defining multi-column range partition bounds Fix partitioning crashes during error reporting Fix race conditions in replication slot operations Fix very minor memory leaks in psql's command.c PL/Perl portability fix: avoid including XSUB.h in plperl.c Fix inadequate stack depth checking in the wake of expression execution changes Allow creation of C/POSIX collations without depending on libc behavior Fix OBJECT_TYPE/OBJECT_DOMAIN confusion Remove duplicate setting of SSL_OP_SINGLE_DH_USE option Fix crash with logical replication on a function index Teach map_partition_varattnos to handle whole-row expressions Fix lock upgrade hazard in ATExecAttachPartition Apply ALTER ... SET NOT NULL recursively in ALTER ... ADD PRIMARY KEY hash: Increase the number of possible overflow bitmaps by 8x Only kill sync workers at commit time in subscription DDL Fix bug in deciding whether to scan newly-attached partition Make pg_stop_backup's wait_for_archive flag work on standbys Fix handling of dropped columns in logical replication Fix local/remote attribute mix-up in logical replication 请注意，有一些已知的问题仍未解决。按照发布路线图，官方表示将于 2017 年底发布最终版。 除了发布 PostgreSQL 10 Beta 3，还对所有支持的版本进行了更新，包括 9.6.4, 9.5.8, 9.4.13, 9.3.18, 和 9.2.22。 发布主页和下载地址 PostgreSQL 10 Beta 3 发布，以及对所有支持版本的更新下载地址
