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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