David Gagnon wrote:
> " -> Index Scan using cr_pk on cr (cost=0.00..6.02 rows=1
> width=828) (actual time=0.073..0.077 rows=1 loops=13587)"
> " Index Cond: (((cr.crypnum)::text = 'M'::text) AND
> (cr.crnum = "outer".cscrnum))"
> " Filter: ((crdate + '00:00:00'::interval) <=
> '2005-01-28 00:00:00'::timestamp without time zone)"
> " -> Index Scan using rr_pk on rr (cost=0.00..5.99 rows=1
> width=5637) (actual time=0.062..0.069 rows=1 loops=8335)"
> " Index Cond: (("outer".crrrnum)::text = (rr.rrnum)::text)"
> " -> Index Scan using yr_idx1 on yr (cost=0.00..5.99 rows=1
> width=926) (actual time=0.127..17.379 rows=1154 loops=8335)"
Your loops are what is causing the time spent.
eg. "actual time=0.127..17.379 rows=1154 loops=8335)" ==
8335*(17.379-0.127)/1000=>143 secs (if my math is correct).
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