How do I delete all percolator queries in an Elasticsearch index

Question

I wish to delete all the percolator queries on an index, but leave the documents intact.

Is there an easy way to perform this?

Answer 1

Meanwhile this is fixed. The following command will delete all the percoaltor queries:

curl -XDELETE 'localhost:9200/my-index/.percolator/_query' -d '{
    "query" : {
        "match_all" : {}
    }
}'

Answer 2

Percolator is special type with name .percolator in your index.

Every query registered in percolator is just a document in this type.

Knowing this fact, you can delete all queries from percolator like this:

$client = new Elastica\Client();
$index = $client->getIndex('myindex');
$percolator = $index->getType('.percolator');
$percolator->delete();

Answer 3

It seems like you should be able to use delete-by-query and the match-all query on the .percolator type of the index. This does not work and is a long-reported ES bug (see here and then here).

The next best solution is to run a query against the .percolator type and then loop over the results, deleting each percolator document individually.

(Edited because initial answer was wrong.)