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filter is not described

posts_join_request filter-hook . WP 2.5.0

Filters the JOIN clause of the query.

For use by caching plugins.


add_filter( 'posts_join_request', 'filter_function_name_1762', 10, 2 );
function filter_function_name_1762( $join, $query ){
	// filter...

	return $join;
The JOIN clause of the query.
The WP_Query instance (passed by reference).

Where the hook is called

wp-includes/class-wp-query.php 2840
$join = apply_filters_ref_array( 'posts_join_request', array( $join, &$this ) );

Where in WP core the hook is used WordPress

Usage not found.