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From Jan Høydahl (Commented) (JIRA) <j...@apache.org>
Subject [jira] [Commented] (SOLR-2202) Money FieldType
Date Thu, 26 Jan 2012 00:22:40 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13193467#comment-13193467
] 

Jan Høydahl commented on SOLR-2202:
-----------------------------------

My biggest wish is human-friendly decimal support e.g. "1.5,USD". Are you sure you need to
change the index format for this, perhaps enough to add some parse/display code?

Reloading config would be nice, but as there is a known workaround by reloading core it's
not a blocker.
                
> Money FieldType
> ---------------
>
>                 Key: SOLR-2202
>                 URL: https://issues.apache.org/jira/browse/SOLR-2202
>             Project: Solr
>          Issue Type: New Feature
>          Components: Schema and Analysis
>    Affects Versions: 1.5
>            Reporter: Greg Fodor
>            Assignee: Jan Høydahl
>             Fix For: 3.6, 4.0
>
>         Attachments: SOLR-2022-solr-3.patch, SOLR-2202-lucene-1.patch, SOLR-2202-solr-1.patch,
SOLR-2202-solr-2.patch, SOLR-2202-solr-4.patch, SOLR-2202-solr-5.patch, SOLR-2202-solr-6.patch,
SOLR-2202-solr-7.patch, SOLR-2202-solr-8.patch, SOLR-2202-solr-9.patch, SOLR-2202.patch, SOLR-2202.patch
>
>
> Attached please find patches to add support for monetary values to Solr/Lucene with query-time
currency conversion. The following features are supported:
> - Point queries (ex: "price:4.00USD")
> - Range quries (ex: "price:[$5.00 TO $10.00]")
> - Sorting.
> - Currency parsing by either currency code or symbol.
> - Symmetric & Asymmetric exchange rates. (Asymmetric exchange rates are useful if
there are fees associated with exchanging the currency.)
> At indexing time, money fields can be indexed in a native currency. For example, if a
product on an e-commerce site is listed in Euros, indexing the price field as "10.00EUR" will
index it appropriately. By altering the currency.xml file, the sorting and querying against
Solr can take into account fluctuations in currency exchange rates without having to re-index
the documents.
> The new "money" field type is a polyfield which indexes two fields, one which contains
the amount of the value and another which contains the currency code or symbol. The currency
metadata (names, symbols, codes, and exchange rates) are expected to be in an xml file which
is pointed to by the field type declaration in the schema.xml.
> The current patch is factored such that Money utility functions and configuration metadata
lie in Lucene (see MoneyUtil and CurrencyConfig), while the MoneyType and MoneyValueSource
lie in Solr. This was meant to mirror the work being done on the spacial field types.
> This patch has not yet been deployed to production but will be getting used to power
the international search capabilities of the search engine at Etsy.

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