1、pgsql 修改text内容sql

UPDATE my_table SET my_column = TEXT 'Text value';

2、修改json字段中json的某个key中的内容

update table set data = (data::jsonb || '{"key":"123"}') where id= 12; 

3、 修改json中多条item中的一条某key的值

UPDATE apppaymentrelation AS G

SET paydetails = REPLACE ( paydetails :: TEXT, '"option": [{"item": "908"}, {"item": "890"}, {"item": "789"}, { "item": "123"}, {"item": "456"}]', '"option": [{ "item": "123123"}]' ) :: JSON

WHERE

G.id IN (

SELECT G.id FROM apppaymentrelation AS G CROSS JOIN jsonb_array_elements(G.paydetails::jsonb) AS j WHERE  j ->> 'label' = 'py' ORDER BY G.id

);

4、查询json字段中某个值

SELECT data->>'name' from table where id=12

5、