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Re: migrating data from an old postgres version

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On 07/15/2016 07:22 AM, Melvin Davidson wrote:

On Fri, Jul 15, 2016 at 10:19 AM, Adrian Klaver
<adrian.klaver@xxxxxxxxxxx <mailto:adrian.klaver@xxxxxxxxxxx>> wrote:

    On 07/15/2016 07:07 AM, Willy-Bas Loos wrote:


        On Fri, Jul 15, 2016 at 3:55 PM, Melvin Davidson
        <melvin6925@xxxxxxxxx <mailto:melvin6925@xxxxxxxxx>
        <mailto:melvin6925@xxxxxxxxx <mailto:melvin6925@xxxxxxxxx>>> wrote:


            Why can't he just do a
            pg_dump -F p his_dbname > his_dbname.sql
            Then copy dbname.sql to a jump/thumb drive on the old laptop
            copy the data from the jump/thumb drive to the new laptop
            create the new db in 9.5
            and use pg_restore to load the his_dbname.sql ?


        Because it's not the same version, so that will cause some errors.


    pg_dump is backwards compatible to version 7.0.


        But i guess we should be able to live with that.
        Thanks, i guess i was thinking a bit too rigid.

        Cheers,
        --
        Willy-Bas Loos



    --
    Adrian Klaver
    adrian.klaver@xxxxxxxxxxx <mailto:adrian.klaver@xxxxxxxxxxx>


As Adrian and I have said, pg_dump and pg_dumpall as backwards
compatible and the recommended method for porrting data from one version
to another. You will NOT get errors if you use plain format.

Remember you can reconstitute a plain format dump from a custom format dump by doing:

pg_restore ... -f plain_sql.txt custom_dump.out

Not sure what errors you are talking about?




--
*Melvin Davidson*
I reserve the right to fantasize.  Whether or not you
wish to share my fantasy is entirely up to you.


--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx


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