[Xapian-discuss] 答复: Does Xapian support value in [value1, value2, value3...]?

[Bruce Zhang]

Can any one help me on below question further? new to Xapian. many thanks,

On Thu, Jul 28, 2011 at 1:11 PM, Bruce Zhang <bruce.zhang at trustgo.com>wrote:

> I am still new to Xapian, and didn't make this successfully,****
>
> ** **
>
> for example, my data are:****
>
> document 1****
>
>   name=xxxx,xxx****
>
>   desc=...****
>
>   country=us, fr****
>
> ** **
>
> document 2:****
>
>   name=...****
>
>   desc=...****
>
>   country=jp,cn****
>
> ** **
>
> I want to be able to search by country, like query document by us or jp or
> cn****
>
> ** **
>
> I use scriptindex to build indexing database. then how should I wrote my
> index scripts?****
>
>   country : ???****
>
> ** **
>
> I use omega to query, then how should I create command line?****
>
> ./omega DB=default B=XCOUNTRY???****
>
> ** **
>
> thanks lot for help,****
>
> ** **
>
> Bruce****
>
> ** **
>
> ** **
>
> *发件人**:* Matt Goodall [mailto:matt.goodall at gmail.com]
> *发送时间**:* Wednesday, July 27, 2011 9:43 PM
> *收件人**:* Bruce Zhang
> *主题**:* Re: [Xapian-discuss] Does Xapian support value in [value1, value2,
> value3...]?****
>
> ** **
>
> On 27 July 2011 14:08, Bruce Zhang <bruce.zhang at trustgo.com> wrote:****
>
> Hi guys,
>
> I wonder if Xapian support the operations like value in [value1, value2,
> value3...]?
>
> from Xapian document, for query, the supported operations are index,
> boolean...
> but we have requirements to query see if a value is in a list of values.
>
> it is already supported or we need to add ourselves?****
>
> ** **
>
> You can achieve this by adding an exact (unstemmed, etc) term for each
> value and then querying for any one of the values in the usual way.****
>
> ** **
>
> For example. if you have a document that has some general, indexable
> content and a list of tags, ["foo", "bar"], you could add "Xtag:foo" and
> "Xtag:bar" terms for the tags. Then, configure a QueryParser with a
> "tag"->"Xtag:" prefix and you can search for "tag:foo", "tag:bar", "tag:foo
> AND tag:bar", etc.****
>
> ** **
>
> - Matt****
>