A functional index can return any standard SQL type except for large objects.
除大型对象外，函数索引可以返回任何标准sql类型。
Only in 2008 did the IPD index of global commercial property show a negative return.
全球商业地产指数仅在2008年出现过负增长。
Given a string, find the first non-repeating character in it and return it's index.
给定一个字符串，寻找第一个不重复字符并返回其下标。
Given a string, find the first non-repeating character in it and return it's index.
给定一个字符串，找出其中第一个不重复出现的字符，返回其位置索引。
Given a string, find the first non-repeating character in it and return it's index.
给定一个字符串，找出其中第一个不重复出现的字符，返回其位置索引。
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