Please tell me What is the best way to optimize this query
select
s.*,a.actid,a.phone,d.domid,d.domname,d.domno,a.actno,a.actname,p.descr
as svcdescr from vwsubsmin s inner join packages p on s.svcno=p.pkgno inner
join
account a on a.actno=s.actno inner join ssgdom d on a.domno=d.domno inner
join (select subsno from
getexpiringsubs($1,cast($2 as integer),cast($3 as double precision), $4) as
(subsno int,expirydt timestamp without time zone,balcpt double precision))
as e on s.subsno=e.subsno where s.status <=15 and d.domno=$5 order by
d.domname,s.expirydt,a.actname
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