You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
WHERE expressions are disregarded when their condition involves two columns of the same table which is being JOINed with another table in a nested SELECT expression, for example:
SELECT * FROM (SELECT * FROM t1 INNER JOIN t2 ON a = c) abc WHERE abc.a > abc.b;
when a and b originate in t1 (or t2).
However, inserting the WHERE expression inside the nested SELECT expression seems to produce the correct result.
Reproducible: Always
Steps to Reproduce:
CREATE TABLE t1 (a INT, b INT);
INSERT INTO t1 VALUES (1, 3);
CREATE TABLE t2 (c INT, d INT);
INSERT INTO t2 VALUES (1, 4);
SELECT * FROM (SELECT * FROM t1 INNER JOIN t2 ON a = c) abc WHERE abc.a > abc.b;
Actual Results:
+------+------+------+------+
| a | b | c | d |
+======+======+======+======+
| 1 | 3 | 1 | 4 |
+------+------+------+------+
Expected Results:
+---+---+---+---+
| a | b | c | d |
+===+===+===+===+
+---+---+---+---+
MonetDB 5 server v11.1.1 (64-bit, 32-bit oids)
Release Mar2011
Copyright (c) 1993-July 2008 CWI
Copyright (c) August 2008-2011 MonetDB B.V., all rights reserved
Visit http://monetdb.cwi.nl/ for further information
Found 8.0GiB available memory
Configured for prefix: C:\Users\sjoerd\Documents\src\MonetDB\stable\NTv64
Libraries:
libpcre: 7.9 2009-04-11
openssl: OpenSSL 1.0.0a 1 Jun 2010
libxml2: 2.7.7
Compiled by: sjoerd@ALGOL (x86_64-pc-winnt)
Compilation: cl -GF -W3 -wd4273 -wd4102 -MD -nologo -Ox
Linking : cl -GF -W3 -wd4273 -wd4102 -MD -nologo -Ox
Date: 2011-04-06 15:01:31 +0200
From: Alfred Nordman <<alfred.nordman>>
To: SQL devs <>
Version: -- development
CC: @njnes
Last updated: 2011-04-28 16:25:39 +0200
Comment 15727
Date: 2011-04-06 15:01:31 +0200
From: Alfred Nordman <<alfred.nordman>>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0) Gecko/20100101 Firefox/4.0
Build Identifier:
WHERE expressions are disregarded when their condition involves two columns of the same table which is being JOINed with another table in a nested SELECT expression, for example:
SELECT * FROM (SELECT * FROM t1 INNER JOIN t2 ON a = c) abc WHERE abc.a > abc.b;
when a and b originate in t1 (or t2).
However, inserting the WHERE expression inside the nested SELECT expression seems to produce the correct result.
Reproducible: Always
Steps to Reproduce:
CREATE TABLE t1 (a INT, b INT);
INSERT INTO t1 VALUES (1, 3);
CREATE TABLE t2 (c INT, d INT);
INSERT INTO t2 VALUES (1, 4);
SELECT * FROM (SELECT * FROM t1 INNER JOIN t2 ON a = c) abc WHERE abc.a > abc.b;
Actual Results:
+------+------+------+------+
| a | b | c | d |
+======+======+======+======+
| 1 | 3 | 1 | 4 |
+------+------+------+------+
Expected Results:
+---+---+---+---+
| a | b | c | d |
+===+===+===+===+
+---+---+---+---+
MonetDB 5 server v11.1.1 (64-bit, 32-bit oids)
Release Mar2011
Copyright (c) 1993-July 2008 CWI
Copyright (c) August 2008-2011 MonetDB B.V., all rights reserved
Visit http://monetdb.cwi.nl/ for further information
Found 8.0GiB available memory
Configured for prefix: C:\Users\sjoerd\Documents\src\MonetDB\stable\NTv64
Libraries:
libpcre: 7.9 2009-04-11
openssl: OpenSSL 1.0.0a 1 Jun 2010
libxml2: 2.7.7
Compiled by: sjoerd@ALGOL (x86_64-pc-winnt)
Compilation: cl -GF -W3 -wd4273 -wd4102 -MD -nologo -Ox
Linking : cl -GF -W3 -wd4273 -wd4102 -MD -nologo -Ox
Comment 15729
Date: 2011-04-08 15:48:46 +0200
From: @njnes
Changeset 1f35ebc64aea 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=1f35ebc64aea
Changeset description:
Comment 15730
Date: 2011-04-08 16:23:12 +0200
From: @njnes
fixed by pushing select down
Comment 15753
Date: 2011-04-28 16:25:39 +0200
From: @sjoerdmullender
The Apr2011 release has been uploaded.
The text was updated successfully, but these errors were encountered: