Re: BUG #17476: ERROR: "variable not found in subplan target list" when running SELECT COUNT(*)

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От Miloš Urbánek
Тема Re: BUG #17476: ERROR: "variable not found in subplan target list" when running SELECT COUNT(*)
Дата
Msg-id d4.wBKh.7WBaDbIyNTm.1YUQCP@scif.cz
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Hi,

the simplest script is something like:

create extension if not exists postgis;
CREATE TABLE IF NOT EXISTS public.table_with_geom
(
    id integer NOT NULL,
    geom geometry(Point,5514)
);
CREATE INDEX IF NOT EXISTS table_with_geom_id ON table_with_geom USING gist (geom);
SET enable_seqscan = OFF;
SET enable_bitmapscan = OFF;
explain select count(*) from table_with_geom;

This should print:

NOTICE: extension "postgis" already exists, skipping ERROR: variable not found in subplan target list SQL state: XX000

Regards

--
Milosh

---------- Původní e-mail ----------
Od: Tom Lane <tgl@sss.pgh.pa.us>
Komu: milos.urbanek@email.cz
Datum: 9. 5. 2022 2:22:10
Předmět: Re: BUG #17476: ERROR: "variable not found in subplan target list" when running SELECT COUNT(*)
PG Bug reporting form <noreply@postgresql.org> writes:
> Trying to run simple SELECT COUNT(*) from some table gives me the following
> error (either running by hand or trying to run EXPLAIN using pgadmin or by
> hand):

> 2022-05-09 00:06:30.428 CEST [1196] ERROR: variable not found in subplan
> target list
> 2022-05-09 00:06:30.428 CEST [1196] STATEMENT: SELECT COUNT(*) FROM
> "domino_efekty_havarijniprojev"

Is that really just a table? I could believe a bug like this for
some types of views, but it's a bit hard to credit for a plain table.

In any case, we can't do much with this report unless you can provide
a reproducer case --- preferably a SQL script that creates an object
that triggers the problem.

regards, tom lane

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