分页搜索和深分页问题

课程大纲
1、讲解如何使用es进行分页搜索的语法
size,from
GET /_search?size=10 GET /_search?size=10&from=0 GET /_search?size=10&from=20
分页的上机实验
GET /test_index/test_type/_search
"hits": { "total": 9, "max_score": 1,
我们假设将这9条数据分成3页,每一页是3条数据,来实验一下这个分页搜索的效果
GET /test_index/test_type/_search?from=0&size=3
{ "took": 2, "timed_out": false, "_shards": { "total": 5, "successful": 5, "failed": 0 }, "hits": { "total": 9, "max_score": 1, "hits": [ { "_index": "test_index", "_type": "test_type", "_id": "8", "_score": 1, "_source": { "test_field": "test client 2" } }, { "_index": "test_index", "_type": "test_type", "_id": "6", "_score": 1, "_source": { "test_field": "tes test" } }, { "_index": "test_index", "_type": "test_type", "_id": "4", "_score": 1, "_source": { "test_field": "test4" } } ] } }
第一页:id=8,6,4
GET /test_index/test_type/_search?from=3&size=3
第二页:id=2,自动生成,7
GET /test_index/test_type/_search?from=6&size=3
第三页:id=1,11,3
2、什么是deep paging问题?为什么会产生这个问题,它的底层原理是什么?
deep paging性能问题,以及原理深度图解揭秘,很高级的知识点
notion image

search after