Hi,

I have a query which is optimized in a curious way in BaseX 9.0.2 (yesterday's snapshot).

This is the original query:

xquery version "3.1";
declare namespace tei = "http://www.tei-c.org/ns/1.0";
let $string := "string"
let $fuzzy := false()

return (
  collection('ZK')/tei:TEI[
    if (false())
      then (.[descendant::text() contains text {$string} using fuzzy])
      else (.[descendant::text() contains text {$string}])
  ],
  collection('ZK')/tei:TEI[
    if ($fuzzy)
    then (.[descendant::text() contains text {$string} using fuzzy])
    else (.[descendant::text() contains text {$string}])
  ]
)

And this is the optimized one (newlines inserted by me for better readability):

(
ft:search("ZK", "string" using language 'English')/ancestor::tei:TEI[parent::document-node()],
ft:search("ZK", "string" using fuzzy using language 'English')/ancestor::tei:TEI[parent::document-node()]
)
I'm curious why the second search is using fuzzy, even though the variable $fuzzy is false. I presume that query optimization is independent of the data, so you won't need the data to reproduce. But if you do, I can provide it. A database with enabled full-text index is required obviously.

Best regards,
Sebastian Zimmer

--
Sebastian Zimmer
sebastian.zimmer@uni-koeln.de

Cologne Center for eHumanities
DH Center at the University of Cologne
@CCeHum