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From: Tom Lane <tgl@sss.pgh.pa.us>
To: 2467882606@qq.com
cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #18520: Different results when analyze a relation with UDT.
In-reply-to: <18520-12e5636a81c059f2@postgresql.org>
References: <18520-12e5636a81c059f2@postgresql.org>
Comments: In-reply-to PG Bug reporting form <noreply@postgresql.org>
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Date: Mon, 24 Jun 2024 10:57:51 -0400
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PG Bug reporting form <noreply@postgresql.org> writes:
> When analyzing a relation with UDT, an error will be encountered if there is
> a join before the analyze stmts. Error message is "ERROR:  missing support
> function 1(16386,16386) in opfamily 16392".

What your example shows is a buggy (very incomplete) operator class.
This is not a Postgres bug.

			regards, tom lane