Need help to DeleteByQuery in NEST 2.1.1

Elastic Stack Elasticsearch
#1

i need to know if there is a way to delete all docs into one collection using nest 2.1.1,

this code:

elastic.DeleteByQuery<Doc>(del => del
    .Query(q => q
        .QueryString(qs=>qs.Query("*"))
    )
);

throw

Error 6 No overload for method 'DeleteByQuery' takes 1 arguments D:\tfs\Produzione Documentale\MES\Utilities\TestIndiciFisco\TestIndiciFisco\Form1.cs 1509 12 TestIndiciFisco

elastic is ElasticClient
Doc is the class mapping the index's documents.

thanks,

#2

NEST 2.x contains the methods for DeleteByQuery but the functionality has been removed from Elasticsearch in 2.x to a separate plugin that must be installed.

If you install the plugin with

bin/plugin install delete-by-query

start your cluster and then change your call to

elastic.DeleteByQuery<Document>(
	"index", 
	typeof(Document), 
	d => d.Query(q => q.QueryString(qs=> qs.Query("*")))
);

It'll work as expected.

For deleting all documents in an index though, it'd be much quicker to just delete the index, and create a new one.

1 Like
#3