Re: pg_dump gets attributes from tables in extensions - Mailing list pgsql-hackers

From Michael Paquier
Subject Re: pg_dump gets attributes from tables in extensions
Date
Msg-id CAB7nPqTyYdQeg+aR3sC1y45AfXZg8FiXsffz0P3c4KqkBxj_5Q@mail.gmail.com
Whole thread Raw
In response to Re: pg_dump gets attributes from tables in extensions  (Rushabh Lathia <rushabh.lathia@gmail.com>)
Responses Re: pg_dump gets attributes from tables in extensions  (Rushabh Lathia <rushabh.lathia@gmail.com>)
List pgsql-hackers
<div dir="ltr"><br /><br />On Mon, Feb 23, 2015 at 5:57 PM, Rushabh Lathia <<a
href="mailto:rushabh.lathia@gmail.com">rushabh.lathia@gmail.com</a>>wrote:<br />> Thanks to the easy handy
testcase,was able to replicate the test scenario<br />> on my local environment. And yes tbinfo->dobj.ext_member
checkinto<br />> getTableAttrs() do fix the issue.<br />><br />> Looking more into pg_dump code what I found
that,generally PG don't have<br />> tbinfo->dobj.ext_member check to ignore the object. Mostly we do this kind<br
/>>of check using tbinfo->dobj.dump (look at dumpTable() for reference). Do you<br />> have any particular
reasonif choosing dobj.ext_member over dobj.dump ?<br /><br />Hm. I have been pondering about this code more and I am
droppingthe patch as either adding a check based on the flag to track dumpable objects or ext_member visibly breaks the
logicthat binary upgrade and tables in extensions rely on. Particularly this portion makes me think so in
getExtensionMembership():<br/>                /*<br />                 * Normally, mark the member object as not to be
dumped. But in<br />                 * binary upgrades, we still dump the members individually, since the<br />       
        * idea is to exactly reproduce the database contents rather than<br />                 * replace the extension
contentswith something different.<br />                 */<br />                if (!dopt->binary_upgrade)<br />   
                   dobj->dump = false;<br />                else<br />                        dobj->dump =
refdobj->dump;<br/>Regards,<br />-- <br />Michael</div> 

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