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Re: CTE with JOIN of two tables is much faster than a regular query

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Subject: Re: CTE with JOIN of two tables is much faster than a regular query
From: Andreas Kretschmer <andreas@xxxxxxxxxxxxxxx>
Date: Sat, 18 Aug 2018 12:26:30 +0200
In-reply-to: <004b01d436d6$ff96c840$fec458c0$@gmail.com>
References: <004b01d436d6$ff96c840$fec458c0$@gmail.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0



Am 18.08.2018 um 11:36 schrieb kpi6288@xxxxxxxxx:

What can I do to improve the performance of the regular query withoutusing a CTE?


try to rewrite it to a subselect:

select ... from ... join (selec ... from ... where ...) x on ...


Regards, Andreas

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