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NOTICE: This is solely NOT a WordPress.com Question, but related to WordPress Migration and Export-Import.

I started blogging in WordPress.com and then shifted my blog to a self-hosted site. But even after that, I din't shut down my .com blog for some internal reasons. Though I stopped updating the .com blog, users are still commenting there. But after a long time, I now determined to shut down the .com site. But before that, I want to import some of the new comments, those posted after the migration.

Suppose, post#5 had 3 comments, when I migrated, now it has 5 comments — so, 2 new comments are in post#5.

As because I have to Export .xml data from the .com site, and the .xml contains all the post comments etc. in it. So, I've to find out a way that only import and add, but doesn't duplicate and/or delete and/or overwrite any of my site's present post content or comments or any other settings.

Is that really possible?

EDIT

What I got so far is the .xml, and I got that the comment resides under <wp:comment> under each <item> with the $post_id and others:

<item>
 <wp:post_id>$post_id</wp:post_id>
 <wp:comment>$comment</wp:comment>
</item>

I've actually no idea about how to proceed with WordPress .xml data file.

share|improve this question
    
have you try anything if yes then show, –  Dk-Macadamia Oct 28 '13 at 8:13
    
I made an edit to the Question with what I tried. –  Mayeenul Islam Oct 28 '13 at 8:29
1  
I'd try to search for an XML editor, where you can see all the nodes in hierarchy and remove the duplicate ones. Then, it should save the file preserving the importable structure. –  brasofilo Oct 28 '13 at 9:41
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