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How to add new rt_field in Sphinx RT to an existing index?

Using sphinx RT (realtime), I have the current working setup.

But I want to add a new field for tracking: rt_field new_field

After adding the above to my sphinx.conf and issuing it /etc/init.d/sphinxsearch restart, trying to populate sphinx raises an error saying that mine new_fieldis an unknown column.
(The documentation does not explicitly state this for RT indices.)

Question:

Do I need to delete the index file and let sphinx recreate it or is there a way to update it and how?

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1 answer

Any changes to the structure of the Sphinx RT index necessary to recreate the index and reindex from scratch. So you need to create a new index and reindex all the data.

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