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如何减少我sql用户界定的职能?
原标题:How to debug mysql user-defined function?

I have a mysql function, i want to debug it, set breakboints, see variables values on that time period etc. How to do it ?

最佳回答

当我SQL要求UDF发挥职能时,你不能回避。 但我认为你可以尝试这些变量:

  • debug your functions without MySQL, just pass test parameter values into function.
  • try to output values into the file when UDF is called, this will help you to view internal variables and understand what is happen.
问题回答

从我目前至今的搜索来看(尽管我可能错过一些东西)。 我必须同意Devart的说法,即你不能削弱民主力量联盟的职能。

给你的一种额外建议是利用梯子进行脱胎。 我撰写了一些非常简单的工作:

void udf_debug( char *msg, ... ) {
#ifdef DEBUG
  va_list ap;

  va_start(ap, msg);
  vfprintf(stderr, msg, ap);
  va_end(ap);

  fflush(stderr);
#endif
}




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