Re: pg_sample

On 08/26/2018 11:03 PM, Naveen Dabas wrote:

Server encoding is UTF8
Client encoding is UTF8
Creating sample schema sampledb1
DBD::Pg::db do failed: ERROR:  cannot execute CREATE SCHEMA in a read-only transaction at ./pg_sample line 296.
main::__ANON__('DBD::Pg::db do failed: ERROR:  cannot execute CREATE SCHEMA i...', 'DBI::db=HASH(0xab2388)', undef) called at ./pg_sample line 478
Done.


can you help me in this

Yes, by suggesting you try something other then pg_sample. The last commit was 4 years ago and it does not seem to be up to date enough.

What sort of sampling do you want to do?

thanks

On Mon, Aug 27, 2018 at 11:16 AM, Naveen Dabas <naveen@paymonk.com <mailto:naveen@paymonk.com>> wrote:

    Thanks for the help.
    But now i'm getting some different error as i rum this command
    ./pg_sample -a -f file.sql --limit="user = 100" --schema=dbname -h
    hostname -U user -W password

    I am not getting output and one file opens , in that file there id
    guide for pg_sample
    ----
    /tmp/9REOT5C

    NAME
    pg_sample - extract a small, sample dataset from a larger PostgreSQL
    database while maintaining referential integrity.
    =head1 SYNOPSIS
    pg_sample [ option... ] [ dbname ]
    =head1 DESCRIPTION
    pg_sample is a utility for exporting a small, sample dataset from a
    larger PostgreSQL database. The output and command-line options closely
    resemble the pg_dump backup utility (although only the plain-text format
    is supported).
    The sample database produced includes all tables from the original,
    maintains referential integrity, and supports circular dependencies.
    To build an actual instance of the sample database, the output of
    this script
    can be piped to the psql utility. For example, assuming we have an
    existing
    PostgreSQL database named "mydb", a sample database could be
    constructed with:
       createdb sampledb
       pg_sample mydb | psql sampledb
    and so on .......

    On Mon, Aug 27, 2018 at 1:27 AM, Paul Carlucci

    <paul.carlucci@gmail.com <mailto:paul.carlucci@gmail.com>> wrote:

        sudo yum install perl-CPAN

        Also do a "yum search perl-" and you should find most, if not
        all what you need natively packaged for your particular Linux
        distro.  You're better off just sticking with the pre-packaged
        perl modules unless you specifically need something special.

        You'll find more modules if you also enable the EPEL yum repo by
        setting enabled=1 in the first section of
        /etc/yum.repos.d/epel.conf and rerunning that yum search command.

        On Sun, Aug 26, 2018, 2:20 PM Naveen Dabas <naveen@paymonk.com
        <mailto:naveen@paymonk.com>> wrote:

            Sir i'm getting error in both commands

            [root@ip-88-8-8-17 ~]#  perl -MCPAN -e 'install Bundle::DBI'
            Can't locate CPAN.pm in @INC (@INC contains:
            /usr/local/lib64/perl5 /usr/local/share/perl5
            /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl
            /usr/lib64/perl5 /usr/share/perl5 .).
            BEGIN failed--compilation aborted.
            [root@ip-88-8-8-17 ~]# perl -MCPAN -e 'install DBD::Pg'
            Can't locate CPAN.pm in @INC (@INC contains:
            /usr/local/lib64/perl5 /usr/local/share/perl5
            /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl
            /usr/lib64/perl5 /usr/share/perl5 .).
            BEGIN failed--compilation aborted.



            operating system =CentOS Linux release 7.5.1804 (Core)

            thanks


            On Fri, Aug 24, 2018 at 6:16 PM, Abhinav Mehta
            <abhinav@metarain.com <mailto:abhinav@metarain.com>> wrote:

                Solution, execute this on your linux terminal -

                $ perl -MCPAN -e 'install Bundle::DBI'
                $ perl -MCPAN -e 'install DBD::Pg'

                 > On 24-Aug-2018, at 6:13 PM, Ravi Krishna
                <sravikrishna@aol.com <mailto:sravikrishna@aol.com>> wrote:
                 >
                 >>
                 >> sir have taken pg_sample
                 >> Now i want to run pg_sample with credential but i'm
                getting this error
                 >>
                 >> Can't locate DBI.pm in @INC (@INC contains:
                /usr/local/lib64/perl5 /usr/local/share/perl5
                /usr/lib64/perl5/vendor_perl
                /usr/share/perl5/vendor_perl /usr/lib64/perl5
                /usr/share/perl5 .) at ./pg_sample line 192.
                 >> BEGIN failed--compilation aborted at ./pg_sample
                line 192.
                 >
                 > As is clear from the message, you need to install
                Perl DBI/DBD first.
                 >
                 >




            --             --
            With Regards
            Naveen Dabas
            Ph. 9017298370


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    --     --
    With Regards
    Naveen Dabas
    Ph. 9017298370




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With Regards
Naveen Dabas
Ph. 9017298370


*Important Disclaimer:* Information contained in this email is for the recipient primarily addressed to. If you are not the primary recipient or are not supposed to receive this email, you are advised to kindly delete the email or the thread and notify of the error. The logo is a registered and copyrighted property of *ACTAS TECHNOLOGIES PRIVATE LIMITED*. Do not use it without authorization.

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