Laljo John Pullokkaran created HIVE-12559:
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Summary: Vectorization on MR produces different results
Key: HIVE-12559
URL: https://issues.apache.org/jira/browse/HIVE-12559
Project: Hive
Issue Type: Bug
Reporter: Laljo John Pullokkaran
Assignee: Matt McCline
Vectorization on MR produces different results for semantically equivalent
queries.
SET hive.vectorized.execution.enabled=true;
SET hive.auto.convert.join=true;
SET hive.auto.convert.join.noconditionaltask=true;
SET hive.auto.convert.join.noconditionaltask.size=1000000000;
SET hive.cbo.enable=false;
select sum(v1.cdouble) from alltypesorc v3 join alltypesorc v1 on
v1.csmallint=v3.csmallint join alltypesorc v2 on v1.ctinyint=v2.ctinyint;
-- Produces 6.065190932488167E11
select sum(v1.cdouble) from alltypesorc v1 join alltypesorc v2 on
v1.ctinyint=v2.ctinyint join alltypesorc v3 on v1.csmallint=v3.csmallint;
-- Produces 6.065190932486892E11
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