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Re: Function Scan costs

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Andy Halsall <halsall_andy(at)hotmail(dot)com>
Cc: "postgresql (dot)org novice list" <pgsql-novice(at)postgresql(dot)org>
Subject: Re: Function Scan costs
Date: 2012-06-27 17:54:58
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Lists: pgsql-novice
On 27 June 2012 16:56, Andy Halsall <halsall_andy(at)hotmail(dot)com> wrote:

> LOG:  duration: 0.497 ms  plan:
>         Query Text: select * from sp_select_by_node_rel($1,$2)
>         Function Scan on public.sp_select_by_node_rel  (cost=0.25..0.26
> rows=1 width=296) (actual time=0.482..0.483 rows=1 loo
> ps=1)
>           Output: tn_type, rel_type, tn_c_state, tn_sort, tn_d_state,
> tn_create_order, stn_guid, tsn_guid, tn_gen_perms, tn_au
> dit, rel_state, sp_perms, rel_control, prime_key, prime_key_len, sec_key,
> sec_key_len, u_prime_key, u_prime_key_len, u_sec_key
> , u_sec_key_len
>           Function Call: sp_select_by_node_rel(82677::bigint, 71346::bigint)
>           Buffers: shared hit=6

Seems OK to me.

 Simon Riggs         
 PostgreSQL Development, 24x7 Support, Training & Services

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Subject: The use of cpu_index_tuple_cost by the query planner
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