WordPress Find ID of a Post with a specific meta value - php

Question

I have about 25,000 posts here (and rising). All of them under a Custom Post Type "lead".
Each post has meta information, including a variable called "uniqid".
this uniqid is a url parameter. now i need the post id where exactly this uniqid exists.
Now my question is if there is a way to speed up this determination.
I have tried 2 ways once a wp_query and get_results.
I ask because this function that determines the post id is always noted by plugin "query monitor" that it is slow.
These are the 2 approaches, both work. I just wonder if it is possible to speed up here?
The WP_Query solution.
$post_id = false;
$args = array(
'posts_per_page' => -1,
'post_type' => 'lead',
'fields' => 'ids',
'orderby' => 'date',
'order' => 'ASC',
'post_status' => 'publish',
'meta_key' => 'uniqid',
'meta_value' => $uniqid
);
$query = new WP_Query( $args );
if( $query->have_posts() ) {
while( $query->have_posts() ) {
$query->the_post();
// Get Post ID for return
$post_id = get_the_id();
// Break loop, when matching id was found
$uniqidGPM = get_post_meta( $post_id, 'uniqid' , true );
if($uniqidGPM == $uniqid) {
$post_found = true;
break;
}
}
}
wp_reset_postdata();
return $post_id;
The select get_results solution.
$post_id = false;
global $wpdb;
$selectQuery = "SELECT wp_wkdm_posts.ID FROM wp_wkdm_posts INNER JOIN wp_wkdm_postmeta ON ( wp_wkdm_posts.ID = wp_wkdm_postmeta.post_id ) WHERE 1=1 AND ( ( wp_wkdm_postmeta.meta_key = 'uniqid' AND wp_wkdm_postmeta.meta_value = '".$uniqid."' )) AND wp_wkdm_posts.post_type = 'lead' AND ((wp_wkdm_posts.post_status = 'publish')) GROUP BY wp_wkdm_posts.ID ORDER BY wp_wkdm_posts.post_date ASC";
$selectQueryResult = $wpdb->get_results($selectQuery);
if (empty($selectQueryResult)) {
return $post_id;
}else{
$post_id = $selectQueryResult[0]->ID;
return $post_id;
};

Answer 1

Please use this meta_query condition on the same query, it helps you.
$args = array(
'post_type' => 'lead',
'posts_per_page' => -1,
'post_status' => 'publish',
'meta_query' => array(
'key' => 'uniqid',
'value' => 'YOUR_VALUE'
)
);
$query = new WP_Query($args);