[DRILL-4395] equi-inner join of two tables in Postgres returns null one of the projected columns

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.5.0
• Fix Version/s: 1.16.0
• Component/s: Storage - JDBC
• Assignee: Unassigned
• Reporter: N Campbell
• Created: 17/Feb/16 19:28
• Updated: 03/Mar/19 13:03
• Resolved: 03/Mar/19 13:03

Description

This query should return 1,2,3,4 in both columns but returns null in the second column. Both tables are in a Postgres 9.5 server mapped under Drill

select tint.rnum, tbint.rnum from postgres.public.tint , postgres.public.tbint where tint.cint = tbint.cbint

create table TINT ( RNUM integer not null , CINT integer ) ;
insert into TINT(RNUM, CINT) values ( 0, NULL);
insert into TINT(RNUM, CINT) values ( 1, -1);
insert into TINT(RNUM, CINT) values ( 2, 0);
insert into TINT(RNUM, CINT) values ( 3, 1);
insert into TINT(RNUM, CINT) values ( 4, 10);

create table TBINT ( RNUM integer not null , CBINT bigint ) ;
insert into TBINT(RNUM, CBINT) values ( 0, NULL);
insert into TBINT(RNUM, CBINT) values ( 1, -1);
insert into TBINT(RNUM, CBINT) values ( 2, 0);
insert into TBINT(RNUM, CBINT) values ( 3, 1);
insert into TBINT(RNUM, CBINT) values ( 4, 10);