Eric Hanson created HIVE-4684:
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Summary: Query with filter constant on left of "=" and column
expression on right does not vectorize
Key: HIVE-4684
URL: https://issues.apache.org/jira/browse/HIVE-4684
Project: Hive
Issue Type: Sub-task
Components: Query Processor
Reporter: Eric Hanson
select dmachineid from factsqlengineam_vec_orc where 1073 = dmachineid + 1;
Does not go down the vectorization path.
Output:
hive> select dmachineid from factsqlengineam_vec_orc where 1073 = dmachineid +
1;
Total MapReduce jobs = 1
Launching Job 1 out of 1
Number of reduce tasks is set to 0 since there's no reduce operator
Validating if vectorized execution is applicable
Cannot vectorize the plan: org.apache.hadoop.hive.ql.metadata.HiveException:
java.lang.ClassNotFoundException: org.apache.hadoop.hiv
e.ql.exec.vector.expressions.gen.FilterLongScalarEqualLongColumn
Starting Job = job_201306061504_0038, Tracking URL =
http://localhost:50030/jobdetails.jsp?jobid=job_201306061504_0038
Kill Command = c:\Hadoop\hadoop-1.1.0-SNAPSHOT\bin\hadoop.cmd job -kill
job_201306061504_0038
Hadoop job information for Stage-1: number of mappers: 8; number of reducers: 0
2013-06-07 10:25:30,932 Stage-1 map = 0%, reduce = 0%
2013-06-07 10:25:39,953 Stage-1 map = 25%, reduce = 0%
2013-06-07 10:25:42,959 Stage-1 map = 49%, reduce = 0%, Cumulative CPU 8.172
sec
2013-06-07 10:25:43,962 Stage-1 map = 49%, reduce = 0%, Cumulative CPU 8.172
sec
...
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