我有以下巨大的要求:
$dia = 'P1D';
$data_desban = new DateTime($desde);
$data_desban->add(new DateInterval($dia));
echo $data_desban->format("Y-m-d H:i:s");
SELECT TOP (100000)
B.UserId AS [UserId], B.ProfileId AS [ProfileId]
FROM
tBounce AS B
JOIN
tBounceType AS BT ON BT.Id = B.BounceTypeId
WHERE
BT.IsHard = 1 AND B.IsProcessedByAutoUnsubscriber = 0
GROUP BY
B.UserId, B.ProfileId
HAVING
count(*) > 2
表包含数十亿条记录,我需要在索引中包含哪些列?我还需要添加分组字段吗?