如何从雪花中的json对象数组中选择数据

Question

我拥有的数据：

ID	Value
1	[{"code": "SM", "place": "San Mateo, CA, USA"},{"code": "IND", "place": "Indianapolis, IN, USA"}]

我希望它变成什么：

ID	Value
1	San Mateo, CA, USA; Indianapolis, IN, USA

这是我所能得到的（表格只是一个示例）

SELECT 
INDEX, 
PARSE_JSON(f.THIS),
ARRAY_TO_STRING(PARSE_JSON(f.THIS),';')
FROM TABLE(FLATTEN(input => parse_json('[{"code": "SM","place": "San Mateo, CA, USA"},{"code": "IND","place": "Indianapolis, IN, USA"}]'))) f LIMIT 1;

Answer 1

你已经接近了：

SELECT 
seq, 
listagg(f.value:place, '; ')
FROM TABLE(FLATTEN(input => parse_json('[{"code": "SM","place": "San Mateo, CA, USA"},{"code": "IND","place": "Indianapolis, IN, USA"}]'))) f 
group by seq

-- San Mateo, CA, USA; Indianapolis, IN, USA