matchAllQuery() in ElasticSearch

问题

matchAllQuery() in Elasticsearch gets me only 10 results how do I increase its output so that I can get as many results as per my requirement.

Code

 QueryBuilder query = QueryBuilders.matchAllQuery();

回答1:

Yes u can do , here you can pass aPageRequestcount whatever you want and If you want no of records exist in Elastic search than repository.count() will work for that :-

int aPageRequestcount = (int) repository.count();

NativeSearchQueryBuilder aNativeSearchQueryBuilder = new NativeSearchQueryBuilder();  
      aNativeSearchQueryBuilder.withIndices(indexName).withTypes(type).withPageable(new PageRequest(0, aPageRequestcount));
final BoolQueryBuilder aQuery = new BoolQueryBuilder();


NativeSearchQuery nativeSearchQuery = aNativeSearchQueryBuilder.withQuery(aQuery).build();
                = elasticsearchTemplate.queryForList(nativeSearchQuery, A.class);

回答2:

By default 10 results are returned, you need to increase the size parameter:

SearchRequestBuilder request = client.prepareSearch(index)
    .setQuery(QueryBuilders.matchAllQuery())
    .setSize(100);

来源：https://stackoverflow.com/questions/43601775/matchallquery-in-elasticsearch