Try here for more details:
http://wiki.apache.org/solr/DataImportHandler#Using_delta-import_command
Any query can be put into deltaQuery - whatever makes the most sense for your
database, to select the id's that need updating. Then deltaImportQuery is used
to pick up the details of the data to be updated/added.
I'm no DIH expert here. It's very tricky to work with, IMO. But maybe a
little fiddling is all it'll take to get what you need.
Erik
On Oct 11, 2011, at 07:20 , vighnesh wrote:
> thanks erik,
>
> but give me any examples on writing delta query without using timestamp
> column.
> and explain me briefly.
>
>
>
>
> thanx in advance.
>
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