noaa-ghcn-daily.other_systems.mrql.q07.mrql Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* 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
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
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* distributed under the License is distributed on an "AS IS" BASIS,
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* limitations under the License.
*/
avg(
select (toInt(text(rtmax.value))-toInt(text(rtmin.value)))
from rtmax in source(xml, args[0], {"data"}),
rtmin in source(xml, args[2], {"data"})
where text(rtmax.date) = text(rtmin.date)
and text(rtmax.station) = text(rtmin.station)
and text(rtmax.dataType) = "TMAX"
and text(rtmin.dataType) = "TMIN"
) / 10
;