ATG Search interprets single quotes as a constraint on the case of the terms inside the quotes. ATG Search characterizes each query term into three types of case:
Upper—All upper-case letters
Lower—All lower-case letters
Mixed—Both upper and lower-case letters
Mixed includes the common title case (for example, The) as well as non-standard case forms, such as iPod and NeXT. If a query term is single-quoted, then it is constrained to retrieve only index terms that match its case. For example, a query with ‘IT’ will only retrieve results with the index term it in upper case.
