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Note: This function isn’t meant to be used by plugins or themes. As explained later, there are better, more performant options to alter the main query. query_posts() is overly simplistic and problematic way to modify main query of a page by replacing it with new instance of the query. It is inefficient (re-runs SQL queries) and will outright fail in some circumstances (especially often when dealing with posts pagination).

Getting hierarchical custom post type permalinks to work just like pages

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I’ve dug through every question here on custom post type permalinks, but most seem to be either problems with custom taxonomy rewrites, or the obvious missing of flush_rewrite_rules(). But in my case, I’m only using a custom post type (no taxonomy), set to be hierarchical (so I can assign parent-child relationships), with the proper “support” for the attributes metabox, etc, etc. I’ve flushed rewrite rules a thousand different ways. I’ve tried different permalink structures. But child URLs always result in 404!

Show certain terms from custom taxonomy but exclude ‘parent’ terms?

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I have a custom post type “mycustom_products” (hierarchical) that has custom taxonomies called ‘categories’ and ‘tags’ (as many other custom post types do). My custom category is called “myprod_category” (also hierarchical) and my tag taxonomy is called “product_tag” (not hierarchical).