noaa-ghcn-daily.other_systems.mrql.q07_count_1940.mrql Maven / Gradle / Ivy
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* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
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*/
count(
select (toInt(text(rtmax.value))-toInt(text(rtmin.value)))
from rtmax in source(xml, args[0], {"data"}),
dtmax in rtmax.date,
rtmin in source(xml, args[2], {"data"}),
dtmin in rtmin.date
where text(rtmax.date) = text(rtmin.date)
and text(rtmax.station) = text(rtmin.station)
and text(rtmax.dataType) = "TMAX"
and toInt(substring(text(dtmax), 0, 4)) > 1960
and text(rtmin.dataType) = "TMIN"
and toInt(substring(text(dtmin), 0, 4)) > 1960
)
;