通用UNIX文件压缩程序compress产生的编码格式。
The encoding format produced by the common UNIX file compression program compress.
文件压缩程序gzip (GNU zip)产生的编码格式，由rfc 1952描述。
An encoding format produced by the file-compression program gzip (GNU zip) as described in RFC 1952.
要避免使用表的相关开销，应用程序可以一些字符串格式对项目列表进行编码，并使存储过程对该字符串进行解码以便提取项目。
To avoid the overhead associated with using a table, the application could encode the list of items in some string format and have the procedure decode the string to extract the items.
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