Folks;
playing with Solr and an existing (legacy) RDBMS structure which we
can't change much, I am trying to figure out how to best make Solrs
full/delta import work for me. A few thoughts:
(a) The usual tutorials outline something like
WHERE LASTMODIFIED > '${dih.last_index_time}
in order to select what needs to be re-imported. So far I didn't manage
to figure out which other informations the DataImportHandler does
expose. In my case, something like
WHERE ID > '${dih.last_indexed_id}
definitely would help as objects are just added to that very structure
and the ID is an auto-increment; however I couldn't find whether
DataImportHandler supports such an approach.
(b) I see that "last_index_time" returns a particularly fixed format.
In our database, with a modestly more complex SELECT, we also could
figure out which entities have been changed using some protocol table
which includes timestamps in seconds since EPOCH. Is there some way of
retrieving such a timestamp from DataImportHandler or will I have to do
so somehow on my own?
Thanks in advance and all the best,
Kristian
