Amazon web services 如何从存储在Amazon Redshift列中的JSON数组中获取字符串？

我在Amazon Redshift中存储了一个数据库，在表列中以JSON格式存储了一个数组

如何从数组中提取字符串？

使用：

使用：

---

使用json_extract_path_text，您可以从列中检索值
此查询执行联接和查询以获得单独的列结果

SELECT json_extract_path_text(O._doc,'domain') AS Domain, 
       json_extract_path_text(P._doc,'email') AS Email
FROM   intelligense_mongo.organisations AS O
INNER JOIN    intelligense_mongo.people AS P
ON  json_extract_path_text(O._doc,'_id') = 
    json_extract_path_text(P._doc,'organisation_id')
Where 
json_extract_path_text(O._doc,'tools_name') = '%"WordPress"%'

---

使用json_extract_path_text，您可以从列中检索值
此查询执行联接和查询以获得单独的列结果

SELECT json_extract_path_text(O._doc,'domain') AS Domain, 
       json_extract_path_text(P._doc,'email') AS Email
FROM   intelligense_mongo.organisations AS O
INNER JOIN    intelligense_mongo.people AS P
ON  json_extract_path_text(O._doc,'_id') = 
    json_extract_path_text(P._doc,'organisation_id')
Where 
json_extract_path_text(O._doc,'tools_name') = '%"WordPress"%'