PostgreSQL 9.3 发布第二个 Beta 版本，与 Beta1 比较，该版本主要是 bug 的修复，包括：
prevent xid gaps in Hot Standby startup
prevent insertion deadlocks with SP-GiST indexes
add user-visible "updatable" flag for foreign tables and views
fix two issues with JSON and Unicode
make sure that pg_isready displays correct connection info
fix pg_dump dependancy order for EventTriggers
fix regression tests for postgres_fdw
fix pg_xlogdump -r
array_remove() no longer emits broken empty arrays
fix formatting of automatically generated recovery.conf file
simplify handling of crashes after fast failover
allow CREATE FOREIGN TABLE to include SERIAL columns
make the word "FOREIGN" optional in "ALTER TABLE"
translation updates merged
many documentation updates
官方首页：http://www.postgresql.org/docs/devel/static/release-9-3.html
免费下载：http://www.enterprisedb.com/products-services-training/pgdownload
来自:开源中国社区
