Re: Get explain output of postgresql in Tables - Mailing list pgsql-hackers

From Richard Huxton
Subject Re: Get explain output of postgresql in Tables
Date
Msg-id 443D0D6E.1060804@archonet.com
Whole thread Raw
In response to Re: Get explain output of postgresql in Tables  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Get explain output of postgresql in Tables  (Thomas Hallgren <thomas@tada.se>)
List pgsql-hackers
Tom Lane wrote:
> 
> I dislike the thought of encouraging people to post stuff in a
> not-easily-readable format.  They won't do it anyway, if it's not
> default; look how we still can't get people to send EXPLAIN ANALYZE
> output the first time.

It certainly needs to be one format for both purposes.

> One idea that comes to mind is to work up some trivial little script
> that undoes the more common forms of cut-and-paste damage.
> 
> I wonder if it would help much just to change EXPLAIN to indent with
> something other than spaces?  Maybe instead of
> 
> Nested Loop  (cost=1.06..40.43 rows=5 width=244)
>   Join Filter: (public.tenk1.unique2 = int4_tbl.f1)
>   ->  HashAggregate  (cost=1.06..1.11 rows=5 width=4)
> 
> print
> 
> Nested Loop  (cost=1.06..40.43 rows=5 width=244)
> --Join Filter: (public.tenk1.unique2 = int4_tbl.f1)
> ----> HashAggregate  (cost=1.06..1.11 rows=5 width=4)
> 
> Not sure what would look nice, but this would at least remove the hazard
> from stuff that thinks whitespace isn't significant.

That's the sort of thing I was thinking of, or even something like:
1> Nested Loop ...
1.1> Join Filter...
1.1.1> HashAggregate...
1.2> etc

--   Richard Huxton  Archonet Ltd


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