Delete the cache entry when the post is changed or deleted

static/dbstructure.config.php

@@ -1055,12 +1055,14 @@ return [
 		"comment" => "Stores temporary data",
 		"fields" => [
 			"page" => ["type" => "varbinary(255)", "not null" => "1", "primary" => "1", "comment" => "Page"],
+			"uri-id" => ["type" => "int unsigned", "foreign" => ["item-uri" => "id"], "comment" => "Id of the item-uri table that contains the uri the page belongs to"],
 			"content" => ["type" => "mediumtext", "comment" => "Page content"],
 			"fetched" => ["type" => "datetime", "comment" => "date when the page had been fetched"],
 		],
 		"indexes" => [
 			"PRIMARY" => ["page"],
 			"fetched" => ["fetched"],
+			"uri-id" => ["uri-id"],
 		],
 	],
 	"parsed_url" => [