内容简介:PostgreSQL 11 beta 2 发布了,PostgreSQL (也叫 Postgres)是一个自由的对象-关系数据库服务器(数据库管理系统),它在灵活的 BSD-风格许可证下发行。它提供了相对其他开放源代码数据库系统(比如 MySQL 和 Fire...
PostgreSQL 11 beta 2 发布了,PostgreSQL (也叫 Postgres)是一个自由的对象-关系数据库服务器(数据库管理系统),它在灵活的 BSD-风格许可证下发行。它提供了相对其他开放源代码数据库系统(比如 MySQL 和 Firebird),和对专有系统比如 Oracle、Sybase、IBM 的 DB2 和 Microsoft SQL Server的一种选择。
此版本修复了众多 bug:
Several fixes for XML support, including using the document node as the context for XPath queries as defined in the SQL standard, which affects the
xpath
andxpath_exists
functions, as well as XMLTABLESeveral fixes related to VACUUM, including potential data corruption issues
Fixes for partitioning, including ensuring partitioning works with temporary tables, eliminating a needless additional partition constraint checks on
INSERT
s and generating incorrect paths for partitionwise aggregatesFix for potential replica server crashes where a replica would attempt to read a recycled WAL segment
Fixes for
pg_replication_slot_advance
including returningNULL
if slot is not advanced and changes for how the slot is updated depending on if it is a physical or logical replication slotEnsure
pg_resetwal
works with relative paths to data directoryFixes for query parallelism, including preventing a crash by ignoring "parallel append" for parallel unsafe paths in a query plan
Fix returning accurate results with
variance
and similar aggregate functions when executed using parallel queryFix issue where
COPY FROM .. WITH HEADER
would drop a line after every 4,294,967,296 lines processedEnsure the "B" (bytes) parameter is accepted by all memory-related configuration parameters
Several fixes for the JSONB transform in PL/Python and PL/Perl
Fix for plpgsql checking statements where it needs to check original write statement before rewrite, could cause crash
Fix for
SHOW ALL
to display superuser configuration settings to roles that are allowed to read all settingsFix for
pg_upgrade
that ensures defaults are written when using the "fast ALTER TABLE .. ADD COLUMN" feature with a non-NULL defaultSeveral fixes for memory leaks
Several fixes specific to the Windows platform
同时包含 tzdata 版本 2018e。
详情查看发布公告。
下载地址:https://www.postgresql.org/download/
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