Updated on 5 Feb 2024
In the BricksLabs Facebook group a user asks:
Is there a way to output the data of a parent post in a child post?
Are there tutorials for this?
This Pro tutorial provides the steps to output the current single post’s parent post using a Bricks query loop for hierarchical post types.

When viewing the child post:

Step 1
Create and edit your single post type template with Bricks.

Add a Section for showing the parent post data (bottom Section in the screenshot).
Sample JSON provided near the end for copy-pasting.
Set up a query loop inside.
Click the query icon and enable PHP query editor.
Paste:
return [
'post_type' => 'page',
'posts_per_page' => 1,
'post__in' => [wp_get_post_parent_id()],
'no_found_rows' => true,
'update_post_meta_cache' => false,
'update_post_term_cache' => false,
];
Enter your post type on the right side in
'post_type' => 'page',
Step 2
Add a condition on the Section to output it only if the current post has a parent.

{echo:wp_get_post_parent_id}
Reference
https://developer.wordpress.org/reference/functions/wp_get_post_parent_id/