When you perform simple queries while the metadata query engine is active, you need to specify search terms that are complete alphabetic or complete numeric values. For example, a simple query that contains the search term 2012 finds the object named Q1_2012.ppt. A simple query that contains the search term 12 does not find this object.
The metadata query engine treats strings of all-alphabetic characters and strings of all-numeric characters as search terms and treats all other characters as search term separators, both in the text you enter and in text being searched. Therefore, test123 is treated as two search terms, test and 123. Similarly, left-handed is treated as two separate search terms, left and handed. Therefore, an any search for test matches test123 and an any search for left matches left-handed.
For all searches, however, the metadata query engine:
•Treats special characters as search term separators. For example, the search string left-handed consists of two search terms, left and handed
•Treats any text that is not all-alphabetic or all numeric and does not contain spaces as a phrase. For example, the search string left-handed is treated as a phrase, as if it were surrounded by quotation marks.
As a result, the search string left-handed matches these strings:
left-handed
left handed
But does not match these strings:
handed left
left right handed
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