A common error is to write the previous query without the square brackets in the XMLEXISTS function.
一种常见的错误是在xmlexists函数中不使用方括号来编写前面的查询。
Therefore, it might be worthwhile to restructure your spatial query to ensure just a single call to the constructor function using common table expressions.
因此，可能有必要使用公共表表达式重新构造空间查询，以确保只调用一次构造函数。
This kind of query can be used for various analytic processing needs, but the RegexMatches function can also be used for more common tasks.
此类查询可用于满足各种分析处理需求，而RegexMatches函数还可用于执行常见的任务。
This kind of query can be used for various analytic processing needs, but the RegexMatches function can also be used for more common tasks.
此类查询可用于满足各种分析处理需求，而RegexMatches函数还可用于执行常见的任务。
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