Complex query with SQL

complex-sql-query.php

<?php

function get_order_meta_by_key3( $meta_key = 'order_status' ) {

		// Check if the data is already cached.
		$cache_key   = 'order_meta_cache_' . $meta_key;
		$cached_data = get_transient( $cache_key );

		if ( false !== $cached_data ) {
			return $cached_data;
		}

		global $wpdb;
		$posts_table    = $wpdb->prefix . 'posts';
		$postmeta_table = $wpdb->prefix . 'postmeta';
		$hub_paged      = 1;
		$posts_per_page = 10;

		$query = "
			SELECT COUNT(mt1.meta_value) AS total, mt1.meta_value
			FROM $posts_table
			INNER JOIN $postmeta_table ON ($posts_table.ID = $postmeta_table.post_id)
			INNER JOIN $postmeta_table AS mt1 ON ($posts_table.ID = mt1.post_id)
			INNER JOIN $postmeta_table AS mt2 ON ($posts_table.ID = mt2.post_id)
			WHERE
				$postmeta_table.meta_key = 'custom_color_match' AND $postmeta_table.meta_value = '0'
				AND mt1.meta_key = 'order_status'
				AND mt1.meta_value NOT IN ('Delivered', 'Invoice Sent', 'Waiting', 'Blockchain Pending', 'Pending')
				AND (
					(mt2.meta_key = 'product_cat' AND mt2.meta_value LIKE '%wood-hoods-product-category%')
					OR (mt2.meta_key = 'product_cat' AND mt2.meta_value LIKE '%hall-trees%')
					OR (mt2.meta_key = 'product_cat' AND mt2.meta_value LIKE '%island-wood-hoods%')
					OR (mt2.meta_key = 'origin' AND mt2.meta_value = 'Hub')
				)
				AND ( $posts_table.post_type = 'all_order' )
			GROUP BY mt1.meta_value
			ORDER BY total DESC;
		";

		$offset  = ( $hub_paged - 1 ) * $posts_per_page;
		$results = $wpdb->get_results( $wpdb->prepare( $query, $posts_per_page, $offset ), ARRAY_A ); // phpcs:ignore

		$count = array();
		foreach ( $results as $result ) {
			$order_status = trim( preg_replace( '/\s+/', ' ', $result['meta_value'] ) );
			if ( empty( $order_status ) ) {
				continue;
			}
			$count[ $order_status ] = $result['total'];
		}

		// Cache the data for future use.
		set_transient( $cache_key, $count, 12 * HOUR_IN_SECONDS );
		return $count;
	}