[jira] [Resolved] (PHOENIX-3627) equi-join predicate should not return a row where null values are compared

["Istvan Toth (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-3627?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Istvan Toth resolved PHOENIX-3627.
----------------------------------
    Resolution: Duplicate

The issue is valid, but we already have a ticket for it.

> equi-join predicate should not return a row where null values are compared
> --------------------------------------------------------------------------
>
>                 Key: PHOENIX-3627
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3627
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.7.0
>         Environment: Hortonworks 2.5.3
>            Reporter: N Campbell
>            Priority: Major
>
> Following query should not return a row where NULL values are compared with an equality predicate.
> select TINT.RNUM, TSINT.RNUM, TINT.CINT , TSINT.CSINT from TINT , TSINT where TINT.CINT = TSINT.CSINT
> TINT.RNUM	TSINT.RNUM	TINT.CINT	TSINT.CSINT
> 0	0	<null>	<null>
> 1	1	-1	-1
> 2	2	0	0
> 3	3	1	1
> 4	4	10	10
> create table  if not exists TSINT ( RNUM integer  not null primary key , CSINT smallint   );
> create table  if not exists TINT ( RNUM integer  not null primary key , CINT integer   );
> upsert into TSINT(RNUM, CSINT) values ( 0, NULL);
> upsert into TSINT(RNUM, CSINT) values ( 1, -1);
> upsert into TSINT(RNUM, CSINT) values ( 2, 0);
> upsert into TSINT(RNUM, CSINT) values ( 3, 1);
> upsert into TSINT(RNUM, CSINT) values ( 4, 10);
> upsert into TINT(RNUM, CINT) values ( 0, NULL);
> upsert into TINT(RNUM, CINT) values ( 1, -1);
> upsert into TINT(RNUM, CINT) values ( 2, 0);
> upsert into TINT(RNUM, CINT) values ( 3, 1);
> upsert into TINT(RNUM, CINT) values ( 4, 10);



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