This means that only global variables in the SQL path that were defined before the last explicit bind time stamp are considered for global variable name resolution.
这意味着，在SQL路径中，只有在最后一次显式绑定时间戳之前定义的全局变量才会进行名称解析。
When a global variable is referenced without the schema name, the SQL path is used to assist in the name resolution.
如果在没有使用模式名情况下引用全局变量，则使用SQL路径协助解析名称。
When a global variable is referenced without the schema name, the SQL path is used to assist in the name resolution.
如果在没有使用模式名情况下引用全局变量，则使用SQL路径协助解析名称。
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