정적 필드 매핑으로 인덱스 빌드하기
개요
In this guide, you will learn how to index only specified fields in documents by creating an index with static field mappings. Static mappings allow you to independently index fields for specific use cases such as faceting.
소요 시간: 5분
준비물
MongoDB 계정 MongoDB 계정 가입을 참조하세요.
Atlas 클러스터 클러스터 생성을 참조합니다.
클러스터에 로드된 샘플 데이터 세트입니다.
절차
프로젝트의 데이터베이스 배포 페이지로 이동합니다.
클러스터 이름을 클릭합니다.
Create a static search index.
Click the Search tab.
Create Index를 클릭합니다.
Select the Visual Editor configuration method, then click Next.
For the Index Name, type static.
For the Database and Collection, select the sample_supplies database and the sales collection. Then, click Next.
Click Refine Your Index in the bottom left. Then, in the Index Configurations pane, toggle off Dynamic Mapping.
In the Field Mappings pane, click Add Field Mapping. In the modal window, select storeLocation from the Field Name dropdown menu.
From the Data Type dropdown menu, select String. Leave the Index Configurations values unchanged, and click Add at the bottom of the modal window.
Run a query on your index.
On the Search Tester page, type London into the search bar, then click Search.
Review the results.
This query returns all documents in the sales collection with a storeLocation of London. Your results should resemble the following sample documents:
SCORE: 0.8888952136039734 salesDate: 2017-12-03T18:39:48.253+00:00 items: Array storeLocation: "London" SCORE: 0.8888952136039734 salesDate: 2015-05-15T13:43:24.561+00:00 items: Array storeLocation: "London" SCORE: 0.8888952136039734 salesDate: 2016-02-06T09:35:02.820+00:00 items: Array storeLocation: "London"
Each record also includes a relevance score. You can expand Array and Object fields to view their contents by clicking on them.
Click Edit Query Syntax. The modal window displays the query sent through the Atlas Search API.
Type online into the search bar, then click Search.
Even though some records include the string online in the purchaseMethod field, no records appear. The index only has a mapping for the storeLocation field, which means that Atlas Search only returns records with matching values in the storeLocation field.
요약
If you successfully completed the procedure in this guide, you have created an Atlas Search index with a static field mapping and used it to perform a targeted relevance-based search. In the next guide, you will learn how to perform compound searches against specific fields using the aggregation pipeline.