Postgresql 如何在pgsql中的函数调用期间锁定（独占）记录？
在pgsql中，如何在函数运行期间锁定记录？考虑以下功能Postgresql 如何在pgsql中的函数调用期间锁定（独占）记录？,postgresql,Postgresql,在pgsql中，如何在函数运行期间锁定记录？考虑以下功能 create or replace function foo.bar_func(int)returns int as $$ with s as (select * from foo.bar where id=$1);-- <--lock the fetched row [BEGIN] /* Some query, update, insert, ... */ select coalesce(s.id,-1) from s;--r
create or replace function foo.bar_func(int)returns int as $$
with s as (select * from foo.bar where id=$1);-- <--lock the fetched row [BEGIN]
/*
Some query, update, insert, ...
*/
select coalesce(s.id,-1) from s;--return something.
-- <-- release the locked row [END]
$$ language sql;