We read every piece of feedback, and take your input very seriously.
To see all available qualifiers, see our documentation.
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
Date: 2014-08-25 19:01:28 +0200 From: Frédéric Jolliton <<frederic.jolliton+monetdb>> To: SQL devs <> Version: 11.17.21 (Jan2014-SP3) CC: @njnes
Last updated: 2014-10-31 14:14:33 +0100
Date: 2014-08-25 19:01:28 +0200 From: Frédéric Jolliton <<frederic.jolliton+monetdb>>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 Build Identifier:
While a test is made to prevent a division by 0, the computation is performed nonetheless before the test causing the query to fail.
Reproducible: Always
CREATE FUNCTION my_avg(total INT, cnt INT) RETURNS INT BEGIN RETURN CASE WHEN cnt <> 0 THEN total / cnt ELSE -1 END; END;
SELECT my_avg(0, 0); division by zero.
EXPLAIN SELECT my_avg(0, 0); .. | X_25 := calc.!=(A1,0:int); | | X_26 := calc.isnil(X_25); | | X_28 := calc.ifthenelse(X_26,false,X_25); | | X_29 := calc./(A0,A1); | | X_30 := calc.ifthenelse(X_28,X_29,-1:int); | ..
-1 was expected because the condition should have prevented the division by 0.
I'm not sure if the SQL standard cover this detail.
Date: 2014-08-27 21:38:22 +0200 From: @njnes
Fixed by handling the expressions from the persistent stored modules also in the rel_case_fixup optimizer.
Date: 2014-08-27 21:40:30 +0200 From: MonetDB Mercurial Repository <>
Changeset f900af1e70a0 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=f900af1e70a0
Changeset description:
handle psm expressions in exp_print and exp_case_fixup (solving the div_by_zero bug #3555)
Date: 2014-10-31 14:14:33 +0100 From: @sjoerdmullender
Oct2014 has been released.
The text was updated successfully, but these errors were encountered:
No branches or pull requests
Date: 2014-08-25 19:01:28 +0200
From: Frédéric Jolliton <<frederic.jolliton+monetdb>>
To: SQL devs <>
Version: 11.17.21 (Jan2014-SP3)
CC: @njnes
Last updated: 2014-10-31 14:14:33 +0100
Comment 20090
Date: 2014-08-25 19:01:28 +0200
From: Frédéric Jolliton <<frederic.jolliton+monetdb>>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0
Build Identifier:
While a test is made to prevent a division by 0, the computation is performed nonetheless before the test causing the query to fail.
Reproducible: Always
Steps to Reproduce:
CREATE FUNCTION my_avg(total INT, cnt INT) RETURNS INT
BEGIN
RETURN CASE WHEN cnt <> 0 THEN total / cnt ELSE -1 END;
END;
Actual Results:
Expected Results:
-1 was expected because the condition should have prevented the division by 0.
I'm not sure if the SQL standard cover this detail.
Comment 20100
Date: 2014-08-27 21:38:22 +0200
From: @njnes
Fixed by handling the expressions from the persistent stored modules also in the rel_case_fixup optimizer.
Comment 20101
Date: 2014-08-27 21:40:30 +0200
From: MonetDB Mercurial Repository <>
Changeset f900af1e70a0 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=f900af1e70a0
Changeset description:
Comment 20378
Date: 2014-10-31 14:14:33 +0100
From: @sjoerdmullender
Oct2014 has been released.
The text was updated successfully, but these errors were encountered: