How to add index and query array within object in couchbase?
具有多个文档,其结构类似于以下内容:
1 2 3 4 5 6 7 8 | { 'key1':value, 'key2':value2, 'galaxy':{ 'planets':['earth','mars','welcomebackpluto'] 'sun': 'something' } } |
我想查询在
我创建的索引没有用,我无法查询它们,不知道该怎么做?
使用数组索引
1 2 3 4 5 | CREATE INDEX ix1 ON default (DISTINCT ARRAY (DISTINCT ARRAY p FOR p IN g.planets END) FOR g IN galaxy END) WHERE type ="xyz"; SELECT d.* FROM default AS d WHERE d.type ="xyz" AND ANY g IN d.galaxy SATISFIES (ANY p IN g.planets SATISFIES p ="mars" END) END; |
https://docs.couchbase.com/server/6.0/n1ql/n1ql-language-reference/indexing-arrays.html