Hi,
On 05/22/2009 05:54 PM, Tom Lane wrote:
This sort of ties into the discussions we have periodically about
allowing EXPLAIN to output XML or some other more-machine-friendly
data format. The barrier for adding additional output fields would
be a lot lower in such a format.
So the best thing
On Fri, May 22, 2009 at 4:54 PM, Tom Lane wrote:
>
> It doesn't really seem useful enough to justify breaking client-side
> code that looks at EXPLAIN output.
Fwiw at least pgadmin I don't think would be confused by this. These
tool authors aren't enamoured of fragile assumptions and the
maintena
Andres Freund writes:
> On 05/22/2009 03:42 PM, Heikki Linnakangas wrote:
>> Isn't the discarded count always equal to (# of rows in table - matched
>> tuples)? Seems pretty redundant to me.
> Not for EXISTS(), LIMIT and similar.
It doesn't really seem useful enough to justify breaking client-si
Hi,
On 05/22/2009 03:42 PM, Heikki Linnakangas wrote:
Andres Freund wrote:
When analyzing the plan of a query I often find myself questioning
whether an additional index may be sensible, or if it is sensible that
a SeqScan is used if an index is available.
The current EXPLAIN ANALYZE only show
Andres Freund wrote:
When analyzing the plan of a query I often find myself questioning
whether an additional index may be sensible, or if it is sensible that a
SeqScan is used if an index is available.
The current EXPLAIN ANALYZE only shows the number of tuples matching the
qualifier of an
...
>From 4865950d8bb66ee29cead3ecb17b07812677bfdf Mon Sep 17 00:00:00 2001
From: Andres Freund
Date: Fri, 22 May 2009 15:37:13 +0200
Subject: [PATCH] Feature: discarded tuple count display in EXPLAIN ANALYZE
---
src/backend/commands/explain.c|5 +++--
src/backend/executor/execScan.c
Hi,
When analyzing the plan of a query I often find myself questioning
whether an additional index may be sensible, or if it is sensible that a
SeqScan is used if an index is available.
The current EXPLAIN ANALYZE only shows the number of tuples matching the
qualifier of an SeqScan Node - fo
