RAQL parameters

Parameters are handed over to the RAQL engine as typed values along with the RAQL statement at execution time. RAQL statements are usually passed unchanged to the RAQL engine. If they contain list parameters, they are rewritten to use single value parameters as follows:

The last rule provides a valid RAQL statement for an empty list. Note that if the list of values is empty, both predicates IN and NOT-IN return the same result UNKNOWN and not FALSE.