Thanks both of you,
I ran EXPLAIN command on above suggested query and got following result:
"Aggregate (cost=2.77..2.79 rows=1 width=10)"
" -> Seq Scan on studentfeespayment (cost=0.00..2.77 rows=1 width=10)"
" Filter: (date_part('month'::text, (recieptmonthyear)::timestamp
without time zone) = 4::double precision)"
What does this mean? Can I optimize it better?
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