| (: |
| XQuery Filter Query |
| ------------------- |
| See historical data for Key West International Airport, FL (USW00012836) |
| station by selecting the weather readings for December 25 over the last |
| 10 years. |
| :) |
| let $collection := "../../../../../../../weather_data/dataset-tiny-local/data_links/local_speed_up/d0_p1_i0/sensors/?select=*.xml;recurse=yes" |
| for $r in collection($collection)/root/dataCollection/data |
| let $datetime := xs:dateTime(fn:data($r/date)) |
| where $r/station eq "GHCND:USW00012836" |
| and fn:year-from-dateTime($datetime) ge 2003 |
| and fn:month-from-dateTime($datetime) eq 12 |
| and fn:day-from-dateTime($datetime) eq 25 |
| return $r |
