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From: Tom Lane <[email protected]>
To: Israel Brewster <[email protected]>
Cc: Ruben Morais <[email protected]>
Cc: PostgreSQL General <[email protected]>
Subject: Re: PostgreSQL 15-->18 slowdown?
Date: Fri, 26 Jun 2026 14:44:25 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<CAG8sLzuG6wwUR3XmMDQtvUWk3DCQNL2Zq-OLCx_PnOarskbUdg@mail.gmail.com>
	<[email protected]>

Israel Brewster <[email protected]> writes:

>          SubPlan 1
>            ->  Limit  (cost=0.00..0.48 rows=1 width=1)
>                  ->  Nested Loop  (cost=0.00..13833793.79 rows=29105774 width=1)
>                        ->  Seq Scan on tilt_data  (cost=0.00..13469970.40 rows=29105774 width=16)
>                              Filter: (station = stations.id)
>                        ->  Materialize  (cost=0.00..1.22 rows=1 width=16)
>                              ->  Seq Scan on tilt_orientation  (cost=0.00..1.21 rows=1 width=16)
>                                    Filter: (station = stations.id)

Can you show us the EXPLAIN output for this part of the plan in v15?

			regards, tom lane

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