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https://issues.apache.org/jira/browse/SOLR-10303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15933087#comment-15933087
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Gethin James commented on SOLR-10303:
-------------------------------------
We could do with some documentation! Here is a start:
Date functions
Date Stream Evaluators can be used to evaluate the date part of other field
values in a tuple. Supported data types are String in the ISO_INSTANT date
format, Instant, java.util.Date, LocalDateTime or an instance of
TemporalAccessor.
eg.
{code}
year(fieldA) //where fieldA is a field with a String in the ISO_INSTANT date
format
month(fieldA)
hour(fieldA)
{code}
* year - The year part of a date
* month - The month of the year
* day - The day of the month
* dayOfYear - The day of the year
* dayOfQuarter - The day of the quarter
* hour - hour of the day, from 0 to 23.
* minute - minute of the hour
* quarter - quarter of the year
* week - Iso standard week of a year, 1 to 53 weeks.
* second - second of the minute
* epoch - number of milliseconds from the epoch
> Add date/time Stream Evaluators
> -------------------------------
>
> Key: SOLR-10303
> URL: https://issues.apache.org/jira/browse/SOLR-10303
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Attachments: SOLR-10303.patch
>
>
> This ticket will add Stream Evaluators that extract date/time values from a
> Solr date field. The following Evaluators will be supported:
> hour (date)
> minute (date)
> month (date)
> monthname(date)
> quarter(date)
> second (date)
> year(date)
> Syntax:
> {code}
> select(id,
> year(recdate) as year,
> month(recdate) as month,
> day(recdate) as day,
> search(logs, q="blah", fl="id, recdate", sort="recdate asc",
> qt="/export"))
> {code}
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