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fix: MCOL-5778 sum return null value due to nullif function

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mariadb-KristinaPavlova
2025-09-24 10:58:17 +03:00
committed by Leonid Fedorov
parent af6a716079
commit b01be6ae2d
3 changed files with 39 additions and 0 deletions
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2
dbcon/mysql/ha_mcs_execplan_helpers.cpp
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@@ -30,6 +30,8 @@ bool nonConstFunc(Item_func* ifp)
{
if (ifp->arguments()[i]->type() == Item::FUNC_ITEM && nonConstFunc(((Item_func*)ifp->arguments()[i])))
return true;
if (ifp->arguments()[i]->type() == Item::CACHE_ITEM)
return true;
}
return false;

16
mysql-test/columnstore/bugfixes/mcol-5778.result Normal file
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@@ -0,0 +1,16 @@
DROP DATABASE IF EXISTS mcol5778;
CREATE DATABASE mcol5778;
USE mcol5778;
create table test ( a double, b double ) engine=columnstore;
insert into test values (100,100);
select sum(a)/NULLIF(sum(b),0) from test;
sum(a)/NULLIF(sum(b),0)
1
select sum(a)/NULLIF(b,0) from test;
sum(a)/NULLIF(b,0)
1
select sum(a)/NULLIF(100,0) from test;
sum(a)/NULLIF(100,0)
1
drop table test;
DROP DATABASE mcol5778;

21
mysql-test/columnstore/bugfixes/mcol-5778.test Normal file
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@@ -0,0 +1,21 @@
-- source ../include/have_columnstore.inc
--disable_warnings
DROP DATABASE IF EXISTS mcol5778;
--enable_warnings
CREATE DATABASE mcol5778;
USE mcol5778;
create table test ( a double, b double ) engine=columnstore;
insert into test values (100,100);
select sum(a)/NULLIF(sum(b),0) from test;
select sum(a)/NULLIF(b,0) from test;
select sum(a)/NULLIF(100,0) from test;
drop table test;
DROP DATABASE mcol5778;