hi, i am uanble to use vectorized reader with hive 1.2.1 i use this link from hive documentation
https://cwiki.apache.org/confluence/display/Hive/Vectorized+Query+Execution step1: create table check(id int) stored as ORC; OK Time taken: 0.521 seconds step2:hive> insert into check values(1); Query ID = hduser_20170713162335_9bb368e6-c11f-4d87-8edf-86484fb0a233 Total jobs = 1 Launching Job 1 out of 1 Number of reduce tasks is set to 0 since there's no reduce operator Job running in-process (local Hadoop) 2017-07-13 16:23:39,323 Stage-1 map = 0%, reduce = 0% 2017-07-13 16:23:40,390 Stage-1 map = 100%, reduce = 0% Ended Job = job_local800495047_0001 Stage-4 is selected by condition resolver. Stage-3 is filtered out by condition resolver. Stage-5 is filtered out by condition resolver. Moving data to: hdfs://localhost:54310/usr/hive/warehouse/check/.hive-staging_hive_2017-07-13_16-23-35_493_7294075038374724529-1/-ext-10000 Loading data to table default.check Table default.check stats: [numFiles=1, numRows=1, totalSize=199, rawDataSize=4] MapReduce Jobs Launched: Stage-Stage-1: HDFS Read: 4055 HDFS Write: 270 SUCCESS Total MapReduce CPU Time Spent: 0 msec OK Time taken: 5.505 seconds step3: hive> explain select * from check where id >1; OK STAGE DEPENDENCIES: Stage-0 is a root stage STAGE PLANS: Stage: Stage-0 Fetch Operator limit: -1 Processor Tree: TableScan alias: check Statistics: Num rows: 1 Data size: 4 Basic stats: COMPLETE Column stats: NONE Filter Operator predicate: (id > 1) (type: boolean) Statistics: Num rows: 1 Data size: 4 Basic stats: COMPLETE Column stats: NONE Select Operator expressions: 1 (type: int) outputColumnNames: _col0 Statistics: Num rows: 1 Data size: 4 Basic stats: COMPLETE Column stats: NONE explain command does not show that vectorized reader is applied -- Thanks and Regards * Anubhav Tarar * * Software Consultant* *Knoldus Software LLP <http://www.knoldus.com/home.knol> * LinkedIn <http://in.linkedin.com/in/rahulforallp> Twitter <https://twitter.com/RahulKu71223673> fb <rahulfora...@facebook.com> mob : 8588915184
