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What is Advanced Query Syntax and where is it used?
Advanced Query Syntax (AQS) is a syntax that enables end-users to define targeted search queries, and is supported in a number of Microsoft products (for example: Windows Vista, Outlook 2007, and Windows Desktop Search).
Here is an example of a search query defined using AQS that will return all the email items, sent by me today, that include the word "Vista".
Vista author:catherine kind:email sent:today
For information on the specifics of the syntax, check out the documentation on MSDN.
Why should I care about AQS?
As a user (and developers are users too :-), AQS can help you find things faster on products that support AQS. For example, on Windows Vista with Outlook 2007, I can enter the above query directly in the Start menu's instant search box!
As a developer, if you're using the OLE DB Provider for Windows Search to run user-specified queries, you may want to consider supporting AQS.
How do I support AQS in my application?
There's no need to parse AQS yourself, just use the ISearchQueryHelper interface. This interface has a method called GenerateSQLFromUserQuery that converts AQS to a SQL query that can be sent to the OLE DB Provider for Windows Search.
Comments
- Anonymous
December 06, 2006
ISearchQueryHelper is a COM interface that can be used to convert from Advanced Query Syntax (AQS) to - Anonymous
June 18, 2007
Apologies for the delay of this post, I’ve been busy with MIX07. Charles Torre and I organized the MIX07