Re: Taking lot time

I have a Query it taking a lot of time to fetch results

so,explain query gave

"Hash Join  (cost=55078.00..202405.95 rows=728275 width=418)"

"  Hash Cond: (itd.tran_id = iad._adj__id)"

"  ->  Seq Scan on inv_detail itd  (cost=0.00..40784.18 rows=731029 width=95)"

"        Filter: (event_type = ANY ('{21,22,3,5}'::integer[]))"

"  ->  Hash  (cost=20590.78..20590.78 rows=610978 width=331)"

"        ->  Seq Scan on inv_adj  iad  (cost=0.00..20590.78 rows=610978 width=331)"

Can you Please let me know wt happen in query..?wt should i do..