followup to SELECT/INSERT problem - Mailing list pgsql-general

From Jim Mercer
Subject followup to SELECT/INSERT problem
Date
Msg-id 20000623104927.H24735@reptiles.org
Whole thread Raw
Responses Re: followup to SELECT/INSERT problem  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-general
ok, so i decided to run a test with just the one element of my pipeline.


the process does:

BEGIN WORK;
loop
    read stdin
    if changes
          UPDATE table1 SET ... WHERE KEY = ...;
    print to stdout
END WORK;

now i fire up:
$ cat file.dat | adjust-rec > /dev/null

it works fine until the first update, then the backend goes into UPDATE and
starts eating CPU.

it appears that each call to UPDATE seems to be taking a long, long time to
complete.

--
[ Jim Mercer                 jim@reptiles.org              +1 416 410-5633 ]
[          Reptilian Research -- Longer Life through Colder Blood          ]
[  Don't be fooled by cheap Finnish imitations; BSD is the One True Code.  ]

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