Select/delete all items in Solr
To select all items for a field in Solr you can use the query : some_item:[* TO *], but if this field is missing from some documents you will not select those documents.
To select all documents you can use the id defined in /conf/schema.xml, for example: <uniqueKey>solr_id</uniqueKey> you can use solr_id:[* TO *].
Now that you have all documents selected you can delete them :D
To delete all documents in Solr use this update xml:
and of course you have to commit:
That’s all !