... yieldsΞs1,t1,s2;m1;s3(χm1:min(Πc2(σt1=t2(ˆe2)))(ˆe1))whereˆe1= Υt1:ΠD(d1//book/title)(χd1 :doc (✷))ˆe2= χc2:decimal (p2) (χ p2: b2/price(ˆe3))ˆe3= χt2:b2/title(Υb2:d2//book(χd2 :doc (✷))) and doc = doc( "prices.xml")s1 = "<minprice ... Böttcher and R. SteinmetzThe input of our tester are the two XPath expressions (the new query XP1 on theone hand and a query XP2 representing a cached query result on the other hand) and aDTD ... Article.docid, Article.iorder2. SELECT id, name, affiliationFROM AuthorWHERE parentid = ? and docid = ?ORDER BY iorder3. SELECT id, number, titleFROM SectionWHERE parentid = ? and docid...