Series Generating Functions
http://www.postgresql.org/docs/9.4/static/functions-srf.html
原文链接：https://www.f2er.com/postgresql/195387.html
Series Generating Functions
http://www.postgresql.org/docs/9.4/static/functions-srf.html
原文链接：https://www.f2er.com/postgresql/195387.html