explain analyze output: 0 rows, 1M loopa

From: Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>
To: "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: explain analyze output: 0 rows, 1M loopa
Date: 2017-11-01 18:59:11
Message-ID: CAOR=d=30NGEG=j6k4khHm59OG-Rg346AXmNN5yb6d4w1sT0bnw@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general

So some of my output from an explain analyze here has a line that says this:

ex Scan using warranty_order_item_warranty_order_id_idx on
warranty_order_item woi_1 (cost=0.57..277.53 rows=6 width=137) (actual
time=0.110..0.111 rows=0 loops=1,010,844)

How can you have 1M loops over 0 rows?

Running on PostgreSQL 9.5.6.

--
To understand recursion, one must first understand recursion.

Responses

Browse pgsql-general by date

  From Date Subject
Next Message David G. Johnston 2017-11-01 19:19:21 Re: explain analyze output: 0 rows, 1M loopa
Previous Message Peter Eisentraut 2017-11-01 18:36:02 Re: Monitoring of a hot standby with a largely idle master