Postgresql 中文操作指南
本部分包含 PostgreSQL 客户端应用程序和实用程序的参考信息。并非所有这些命令都是常规实用程序；某些命令可能需要特殊权限。这些应用程序的共同特点是它们可以在任何主机上运行，而与数据库服务器所在的具体位置无关。
This part contains reference information for PostgreSQL client applications and utilities. Not all of these commands are of general utility; some might require special privileges. The common feature of these applications is that they can be run on any host, independent of where the database server resides.
当在命令行上指定时，用户名和数据库名的字母大小写将被保留—如果存在空格或特殊字符，则可能需要使用引号。表名和其他标识符的字母大小写不会被保留（已记录的情况除外），并且可能需要使用引号。
When specified on the command line, user and database names have their case preserved — the presence of spaces or special characters might require quoting. Table names and other identifiers do not have their case preserved, except where documented, and might require quoting.
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