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Subquery in select part goes wrong #2988

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monetdb-team opened this issue Nov 30, 2020 · 0 comments
Closed

Subquery in select part goes wrong #2988

monetdb-team opened this issue Nov 30, 2020 · 0 comments

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@monetdb-team monetdb-team commented Nov 30, 2020

Date: 2012-01-28 16:00:48 +0100
From: @skinkie
To: SQL devs <>
Version: -- development
CC: @njnes

Last updated: 2012-03-16 14:56:54 +0100

Comment 16838

Date: 2012-01-28 16:00:48 +0100
From: @skinkie

User-Agent: Mozilla/5.0 (X11; Linux i686) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.83 Safari/535.2
Build Identifier:

sql>select 1, (select 1) as x;
+------+------+------+
| L12 | L11 | x |
+======+======+======+
| 1 | 1 | 1 |
+------+------+------+

select 1, (select 1 as y, 2 as z) as x;
+------+------+------+------+
| L21 | y | L20 | x |
+======+======+======+======+
| 1 | 1 | 2 | 2 |
+------+------+------+------+

Reproducible: Always

Expected Results:

PostgreSQL says;
select 1, (select 1 as y) as x;
?column? | x
----------+---
1 | 1

select 1, (select 1 as y, 2 as z) as x;
ERROR: subquery must return only one column

(actually trying to find the crash that caused my group by bug)

Comment 17002

Date: 2012-02-26 23:07:46 +0100
From: @njnes

corrected bug in simple_select, need alway to project full list of outer projection.

Comment 17003

Date: 2012-02-26 23:09:17 +0100
From: @njnes

Changeset 85e9bea7a75f made by Niels Nes niels@cwi.nl in the MonetDB repo, refers to this bug.

For complete details, see http//devmonetdborg/hg/MonetDB?cmd=changeset;node=85e9bea7a75f

Changeset description:

added test for bug #2988

fixed bug in rel_simple_select outer projection handling.

Comment 17010

Date: 2012-02-27 19:26:47 +0100
From: @njnes

*** Bug #2985 has been marked as a duplicate of this bug. ***

Comment 17099

Date: 2012-03-16 14:56:54 +0100
From: @grobian

Released in Dec2011-SP2

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