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Why postgresql 8.3.5 created temporary files of size less then work_mem on disk ? - Mailing list pgsql-admin

From Yves D'Astous
Subject Why postgresql 8.3.5 created temporary files of size less then work_mem on disk ?
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Msg-id 6807f2cf0905061156o79351fa7pfacf3357cbd72e5a@mail.gmail.com
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Responses Re: Why postgresql 8.3.5 created temporary files of size less then work_mem on disk ?
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Hello,

On a test postgresql server I have set work_mem to 200MB, and I have
stop/start postgressql.
I have also enable the  "log_temp_files = 0"

After restarting my server and executing some sql statements I see in
the postgres log:

LOG:  temporary file: path "base/pgsql_tmp/pgsql_tmp6655.10", size 122869324

So in what case temporary file of size less then work_mem are created on
disk ?


Yves D'Astous

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