在Postgres 10中,您可以全文搜索With
(select Count(distinct(follower_account_id) as followers
From pw_social_relation)
Select count(distinct(follower_account_id))/followers
From pw_social_relation
Where count(followee_account_id)>=3
数据结构:
Key: ga:productSku
Imported Data: ga:metric13
Overwrite hit data: Yes
请注意tsvector如何仅索引JSON对象(智能)的值
现在,我想合并多个JSONB
字段中的SELECT to_tsvector('english', '{"key":"value1"}'::jsonb);
>>> [tsvector]
>>> 'value1':1
...
我可以...
tsvector
请注意,因为我已经强制转换为JSONB
,所以我会得到键和值。...
我想合并多个tsvector()对象的输出-如何做到这一点?
答案 0 :(得分:2)
请注意,jsonb值可以为concatenated:
SELECT '{"key":"value1"}'::jsonb || '{"key2":"value2"}'::jsonb AS new_jsonb
new_jsonb
-------------------------------------
{"key": "value1", "key2": "value2"}
(1 row)
您无需将其转换为文本:
SELECT to_tsvector('{"key":"value1"}'::jsonb || '{"key2":"value2"}'::jsonb );
to_tsvector
-----------------------
'value1':1 'value2':3
(1 row)