[HIVE-18238] Driver execution may not have configuration changing sideeffects

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: Logical Optimizer
• Assignee: Zoltan Haindrich
• Reporter: Zoltan Haindrich
• Created: 06/Dec/17 16:02
• Updated: 22/May/18 23:17
• Resolved: 13/Feb/18 13:48

Description

Driver executes sql statements which use "hiveconf" settings;
but the Driver itself may not change the configuration...

I've found an example; which shows how hazardous this is...

set hive.mapred.mode=strict;
select "${hiveconf:hive.mapred.mode}";
create table t (a int);
analyze table t compute statistics;
select "${hiveconf:hive.mapred.mode}";

currently; the last select returns nonstrict because of this

Issue Links

• is blocked by: HIVE-18243 Cartesian error for joins defined in where clause
• is blocked by: HIVE-18224 Introduce interface above driver
• links to: rb