update partial document

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update partial document

Brian Lucas
Hi, I wanted to inquire if anybody would find an update flag useful that
only replaced the subset of data (ie a certain field) getting passed in,
instead of the whole record.  

 

Pseudo-code for what I'm describing:

 

<id>125125</id>

<update-partial>true</update-partial>

------------------------

+ <language>RU</language>

------------------------

- <language>EN</language>

 

Instead of deleting and reinserting an entire document, which is ostensibly
what SOLR does each time an update is performed, it's sometimes preferable
to simply replace a single field's value like one does in a database.  

 

Any thoughts on the feasibility or limitations of this?

 

Brian

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Re: update partial document

Simon Willnauer
I'm not into the code of Solr at all but I know that Solr is based on
the lucene core which has no kind of update mechanism. To update a
document using lucene you have to delete and reinsert the document.
That might be the reason for the solr behaviour as well.

You should consider that lucene is not a database!

best regards simon

On 9/18/06, Brian Lucas <[hidden email]> wrote:

> Hi, I wanted to inquire if anybody would find an update flag useful that
> only replaced the subset of data (ie a certain field) getting passed in,
> instead of the whole record.
>
>
>
> Pseudo-code for what I'm describing:
>
>
>
> <id>125125</id>
>
> <update-partial>true</update-partial>
>
> ------------------------
>
> + <language>RU</language>
>
> ------------------------
>
> - <language>EN</language>
>
>
>
> Instead of deleting and reinserting an entire document, which is ostensibly
> what SOLR does each time an update is performed, it's sometimes preferable
> to simply replace a single field's value like one does in a database.
>
>
>
> Any thoughts on the feasibility or limitations of this?
>
>
>
> Brian
>
>
>