Ticket #54221: 54221.diff

src/wp-includes/option.php

@@ -344 +344 @@
         return apply_filters( 'alloptions', $alloptions );
 }
 
+/**
+ * Filters autoloaded options.
+ * This is particularly useful when option is set to be autoloaded in DB,
+ * but has a large size and causing performance impact.
+ *
+ * @param string $query Query being executed.
+ *
+ * @return string Filtered query to exclude certain options from autoloading.
+ */
+function wp_filter_autoloaded_options( $query ) {
+    global $wpdb;
+
+    $alloptions_query = "SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes'";
+
+    // If this is not the alloptions query, return the original query.
+    if ( $query !== $alloptions_query ) {
+        return $query;
+    }
+
+        /**
+         * Filters the options which needs exclusion from autoloading.
+         *
+         * @since 6.1.2
+         *
+         * @return array List of options to exlude from autoloading.
+         */
+    $exclude_autoload_options = apply_filters( 'exlude_autoloaded_options', array( '_transient_dirsize_cache' ) );
+    $not_in_query             = implode( ', ', array_fill( 0, count( $exclude_autoload_options ), '%s' ) );
+    $alloptions_query         = $wpdb->prepare( $alloptions_query . " AND option_name NOT IN ( $not_in_query )", $exclude_autoload_options );
+
+    return $alloptions_query;
+}
+add_filter( 'query', 'wp_filter_autoloaded_options' );
+
 /**
  * Loads and caches certain often requested site options if is_multisite() and a persistent cache is not being used.
  *