[ http://issues.apache.org/jira/browse/SOLR-71?page=all ]
Hoss Man updated SOLR-71:
-------------------------
Attachment: DateMath.patch
Code, and tests ... if you readd the exampledocs the "incubationdate_dt" field
is populated for the Solr product so you can play with it...
incubationdate_dt:[* TO NOW-1DAY+3HOURS/MINUTE] ... matches.
incubationdate_dt:[* TO NOW-2YEARS] ... does not match.
> New support for "Date Math" when adding/quering date fields
> -----------------------------------------------------------
>
> Key: SOLR-71
> URL: http://issues.apache.org/jira/browse/SOLR-71
> Project: Solr
> Issue Type: New Feature
> Components: search, update
> Reporter: Hoss Man
> Assigned To: Hoss Man
> Attachments: DateMath.patch
>
>
> New utility class and changes to DateField to support syntax like the
> following...
> startDate:[* TO NOW]
> startDate:[* TO NOW/DAY+1DAY]
> expirationDate:[NOW/DAY TO *]
> reviewDate:[NOW/DAY-1YEAR TO NOW/DAY]
> validDate:[NOW/MONTH TO NOW/MONTH+1MONTH-1MILLISECOND]
> ...where + and - mean what you think, and "/UNIT" rounds down to the nearest
> UNIT. The motivation for this being that date range queries like these are
> usefull for filters, but being date sensitve can't currently be "baked in" to
> a config as default params.
> a nice side effect of the implimentation, is that "timestamp" fields can be
> done with a document is added by using...
> <field name="myTimestampField">NOW</field>
> ...and Solr will compute the value when adding the document ... if we add
> default values to the schema.xml even that won't be neccessary.
> Comments?
> (I'd be particularly gratefull if smarter people then I would sanity check my
> use of ThreadLocal for managing the DateFormat in DateField ... i've never
> used ThreadLocal before. Any general comments on the syntax would also be
> appreciated: This left-to-right syntax seemed more intuative to write (and
> easier to parse) then some of the other syntaxes I'd considered)
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