CREATE or replace FUNCTION test() RETURNS boolean AS $$
$filename = '/home/postgres';
if (-e $filename) {
exec /home/postgres/test.sh &
return true; }
return false;
$$ LANGUAGE plperlu;
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exec /home/postgres/test.sh及其显示的语法错误。您能帮忙如何将bash脚本调用到postgres函数/过程中吗