Json数组成行+ postgresql + node.js

Question

考虑我有一个json数组如下

[
{"a":1,"b":2},{"a":3,"b":4} ,{"a":5,"b":6}
]

我必须将其插入postgtreSQL，如下所示：

in  out
1  2
3  4
5  6

我在postgreSQL中读到了JSON数据类型，但我无法弄清楚如何实现这一点。请分享您的想法。提前致谢。

Answer 1

insert into my_table (in, out)
select a, b
from jsonb_to_recordset(
    '[{"a":1,"b":2},{"a":3,"b":4} ,{"a":5,"b":6}]'
) r (a int, b int)

https://www.postgresql.org/docs/current/static/functions-json.html#FUNCTIONS-JSON-PROCESSING-TABLE

在Javascript中转义单引号：

var query = 'insert into table (enroll_id, time) select enroll_id, time from jsonb_to_recordset(\'' + data + '\') r (enroll_id bigserial, time timestamp)';