我有一个相当基本的查询,如以下所示,我需要尽可能频繁地执行: B.ID, B.FirstName, B.LastName TableA as A TableB as B on A.ID = B.ID A.OtherID = @Input然而,我想进一步提高它,并认为也许指数可能会有所帮助。但我对索引处理得不多,只是读了一点点。此外,这个存
event_token, '')) AS counts FROM comment GROUP BY event_token ORDER BY counts DESC;";
$comment_count = array(); $comment_count$result) {
trigger_error('Invalid