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From: Marc Millas <[email protected]>
To: [email protected] <[email protected]>
Subject: explain
Date: Thu, 24 Apr 2025 15:31:46 +0200
Message-ID: <CADX_1aZDtzTaoV5XNi__VbQCj7iPGaU6i5XANjjPwLwF7Acsww@mail.gmail.com> (raw)

hello,

there is something I seem missing in explain analyze buffers results when
track_io_timing is on:

this is the first lines of an explain: (the request is of no interest, such
a result is quite frequent)

Nested Loop Left Join  (cost=941400.77..966327.57 rows=3 width=653) (actual
time=52655.694..62533.811 rows=346 loops=1)
  Buffers: shared hit=10068265 read=396705 dirtied=1858 written=218, temp
read=429687 written=115187
  I/O Timings: read=79368.246 write=11.486

So, the total execution time is 52655 ms ok
and the total time for i/o is...79368 ms

how ???

thanks

Marc MILLAS
Senior Architect
+33607850334
www.mokadb.com

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