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XPath doesn't allow you to make queries with Cyrillic symbols unless you disable XML pre-processing by adding this code in your child themes functions.php file (or in a plugin like Code Snippets: https://wordpress.org/plugins/code-snippets/):

function wpai_is_xml_preprocess_enabled( $is_enabled ) {
	return false;
}
add_filter( 'is_xml_preprocess_enabled', 'wpai_is_xml_preprocess_enabled', 10, 1 );

Once that code is in place, upload your file to an import and queries like this will be possible:

We did it! We broke gist.github.com ;) So head over to the new home! Thank you all!
2021.10.20: https://github.com/AveYo/MediaCreationTool.bat now open for interaction

Not just an Universal MediaCreationTool wrapper script with ingenious support for business editions,

A powerful yet simple windows 10 / 11 deployment automation tool as well!

discuss on MDL

WP All Import Optimizations

If you have a slow import, or if you're running into a lot of server timeouts, then you can follow these steps to optimize your import.

Slow Import Guide

Follow all of the steps listed here: http://www.wpallimport.com/documentation/troubleshooting/slow-imports/.

Skip posts if their data has not changed

You can manually delete the physical log files via FTP by deleting the sub-folder(s) inside the /wp-content/uploads/wpallimport/logs/ folder. As for the history log entries in the database (what you see on the "History Logs" page), you'll need to run an SQL query to delete them in bulk (you can run queries with this: https://wordpress.org/plugins/ari-adminer/). For example:

DELETE
FROM `wp_pmxi_history`

Some things to keep in mind here:

Always back up your database before deleting things like this.

Migrate shortcode image IDs with WP All Export and WP All Import

Convert the IDs to URLs during the export

Use a custom PHP function ( https://www.wpallimport.com/documentation/export/pass-data-through-php-functions/ ) on the content field to convert the image IDs to URLs. Example shortcode:

[vc_single_image image="177" img_size="full" add_caption="yes" alignment="center" style="vc_box_shadow_border"]

Example function:

	<?php
	/**
	* WP All Import: Upload media to a directory named after the Import ID.
	*
	* @link https://gist.github.com/cliffordp/fc0fa5686d6a127246224f1565b60128 This snippet.
	* @link https://github.com/soflyy/wp-all-import-action-reference/blob/master/all-import/wp_all_import_images_uploads_dir.php
	*
	* @see PMXI_Import_Record::process()
	* @see wp_upload_dir()
	*