On Jul 28, 2005, at 8:36 AM, Paul Libbrecht wrote:
Dare I ask wether this implies that the fields are stored ?

I don't quite understand. The "reconstruct" feature of Luke (and thus the code you can borrow from) does not require that fields are stored - it pulls the indexed terms from the index and puts it back together. Again, this is risky business depending on the analysis process that you used to originally index a document.

Give Luke a try to see it first-hand.

    Erik



thanks

paul


Le 28 juil. 05, à 14:26, Erik Hatcher a écrit :

It is possible to reconstruct a document from the index, but it is a potentially lossy proposition, since stemming and other manglings might have gone on. Look at Luke and see how it does it (you can "reconstruct and edit" a document from its UI).

On Jul 28, 2005, at 5:37 AM, Paul Libbrecht wrote:

My mission is currently to update an index by marking adding a flag field on some documents.
For this, I seem to have the only following possibility:
- search for the documents in question, store them, filter them
- modify the documents in accordance
- delete the modified documents
- put back the documents

However, I seem to experiment and fear that unstored-fields will be lost underway... I, of course, do not wish to re-run the analysis process here (which is complex because of the xml-nature on the back).

Will these fields indeed be lost ?
Is there no way to "copy the token-streams" (as it's anyways stored in the index in some way) ?

thanks

paul


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