您有一个列级联，可防止任何索引的使用
尝试不存在将分别支持2列
SELECT distinct
o.casino_id, g.game_id
FROM
game g
INNER JOIN
Bet b ON g.game_id = b.game_id
INNER JOIN
CasinoUser u ON b.user_id = u.user_id
INNER JOIN
onewalletcasino o ON u.casino_id = o.casino_id
WHERE
game_start between dateadd(mi, -180, getdate())
and dateadd(mi, -5, getdate())
and
b.[status] <> 'P'
AND
NOT EXISTS (SELECT *
FROM
thirdpartysettlecalled tp
WHERE
tp.[status] = 'Y'
AND
tp.casino_id = o.casino_id AND tp.game_id = g.game_id)
ORDER BY
casino_id
之后，检查您的索引或课程…
这也是EXCEPT的一个很好的用法（ORDER BY像UNION一样结束了：感谢@Damien_The_Unbeliever）
SELECT distinct
o.casino_id, g.game_id
FROM
game g
INNER JOIN
Bet b ON g.game_id = b.game_id
INNER JOIN
CasinoUser u ON b.user_id = u.user_id
INNER JOIN
onewalletcasino o ON u.casino_id = o.casino_id
WHERE
game_start between dateadd(mi, -180, getdate())
and dateadd(mi, -5, getdate())
and
b.[status] <> 'P'
EXCEPT
SELECT tp.casino_id, tp.game_id
FROM thirdpartysettlecalled tp
WHERE tp.[status] = 'Y'
ORDER BY
casino_id
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