returns the name of a new or recycled temporary table and the list of SQL command that MUST be executed before the first use of the returned temporary

@effects this.tokens' = concat [ this.tokens, " ", token, " " ]

This is used to compute the predicate or value columns in the PH tables Deals with multiple hash functions @param columnName @return

Return true if the closure algorithm should continue with statements with this resource as subject. Applied to subject and object iof each statement t

Returns the super-fast hash of the identity hashcodes of the given objects. @return super-fast hash of the identity hashcodes of the given objects.

performs query reformulation @param q @return

@return true if expr is equal to a canonical empty expression

@return the language