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Re: Attribute of type record has wrong type error with MERGE ... WHEN NOT MATCHED BY SOURCE THEN DELETE

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Dean Rasheed <dean.a.rasheed@gmail.com>
Cc: Tender Wang <tndrwang@gmail.com>, Duncan Sands <duncan.sands@deepbluecap.com>, pgsql-bugs@lists.postgresql.org
Date: 2025-03-10T20:08:46Z
Lists: pgsql-bugs 
Dean Rasheed <dean.a.rasheed@gmail.com> writes:
> However, that's not quite the end of it -- preprocess_function_rtes()
> / inline_set_returning_function() can turn a function RTE into a
> subquery RTE, leading to a similar problem:

> create table foo (a int, b int);
> insert into foo values (1,2);
> create or replace function f() returns setof foo as
>   $$ select * from foo offset 0 $$ language sql stable;
> update foo set b = f.b from f() as f(a,b) where f.a = foo.a returning f;

> ERROR:  attribute 3 of type record has wrong type
> DETAIL:  Table has type record, but query expects foo.

Double ugh.  I guess we could get preprocess_function_rtes to
insert the appropriate relid ...

			regards, tom lane

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Repair commits 317aba70e et al for -DWRITE_READ_PARSE_PLAN_TREES.

  2. Build whole-row Vars the same way during parsing and planning.

  3. Preserve RangeTblEntry.relid when expanding a view RTE.

  4. Fix incorrect non-strict join recheck in MERGE WHEN NOT MATCHED BY SOURCE.