How to set meta_query of Group cloneable fields for search

Hi,

One of solution method most suitable for this topic was found.
For example I'd like to search for the maximum value and date period in group rows.

I make readonly text field for search condition 'meta_query'.
When post save with get value(min, max for search)
and update_post_meta() in post_save ()action.

A search could be sped up by readonly field for group data searches.

For example save_post action

add_action( 'save_post', 'savepost_update_meta' );
function savepost_update_meta($post_id){
    
    // check post type or category, etc.
    if(get_post_type($post_id) !== 'post_type_foo') return;
    

    // get group meta data
    $groupRows = rwmb_meta('goup_id', $args = array(), $post_id);
    $priceMin = '';
    $priceMax = '';
    
    if($groupRows){
        foreach($groupRows as $row){
            $price = isset($row['field_price']) ? $row['field_price'] : '';
                       
            // check value
            if(empty($priceMin)){
                $priceMin = $price;
            }else{
                if((int)$price < (int)$priceMin) $priceMin = $price;
            }
            if((int)$priceMax < (int)$price) $priceMax = $price;
        }
        
        // update readonly meta field
        update_post_meta($post_id, 'field_readonly_text_min_price', $priceMin);
        update_post_meta($post_id, 'field_readonly_text_max_price', $priceMax);
        
    }else{
        // delete readonly meta field when nothing group data
        delete_post_meta($post_id, 'field_readonly_text_min_price'); 
        delete_post_meta($post_id, 'field_readonly_text_max_price'); 
    }
}

$meta_query[] = array(
                'key' => 'field_readonly_text_min_price',
                'value' => $searchPrice,
                'compare' => '<=',
                'type' => 'NUMERIC'
            );

Thanks anyway!