转换查找 meaning in English

forward lookup

Column to ensure that it will fail to produce a match during the transformations lookup
列，以确保该列在转换查找期间无法生成匹配项。
To maximize the efficiency of lookups , only a subset of the tokens in each row in the table is indexed in the inverted index structure that the fuzzy lookup transformation uses to locate matches
若要最大程度提高查找效率，请以模糊查找转换查找匹配项时所用的倒排索引结构仅对表内每行中的一个令牌子集建立索引。