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OpenAccess SDK SQL Engine Core Functions API : Custom scalar functions : Using custom scalar functions in a WHERE clause
 

Using custom scalar functions in a WHERE clause

Your IP can use custom scalar functions that are specified in a WHERE clause. For example, the following query specifies a scalar function named NEAR:
SELECT * FROM curvalue WHERE name = NEAR('tom', 'jones');
The OpenAccess SDK SQL engine allows the IP to obtain information about the custom scalar conditions and evaluate them, returning each set of custom conditions as a list of OR predicates. Your IP must complete the following procedure to evaluate and use custom scalar functions.
Note: This feature is not supported for .NET.