2.2.13 SharePoint Search SQL Syntax v2
SharePoint Search SQL Syntax v2<19> specifies a syntax for search queries that is similar to the language used by SQL server. The syntax restricts the search query to the task of obtaining a list of search results from the protocol server.
The following is an ABNF description of the SharePoint Search SQL syntax, which is used in the Query and QueryEx operations. ABNF is specified in [RFC5234]. Following section 2.4 in [RFC5234], this description assumes Unicode as its external encoding. As such, the terminal values of this grammar represent Unicode code points.