| set hive.auto.convert.join=true; |
| set hive.auto.convert.sortmerge.join=true; |
| set hive.default.rcfile.serde=org.apache.hadoop.hive.serde2.columnar.LazyBinaryColumnarSerDe; |
| set hive.enforce.sortmergebucketmapjoin=true; |
| set hive.exec.reducers.bytes.per.reducer=67108864; |
| set hive.fetch.output.serde=org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe; |
| set hive.limit.optimize.enable=true; |
| set hive.limit.pushdown.memory.usage=0.04; |
| set hive.llap.io.enabled=true; |
| set hive.map.aggr.hash.min.reduction=0.99; |
| set hive.mapjoin.bucket.cache.size=10000; |
| set hive.mapjoin.hybridgrace.hashtable=false; |
| set hive.merge.mapfiles=false; |
| set hive.merge.nway.joins=false; |
| set hive.optimize.bucketmapjoin=true; |
| set hive.optimize.index.filter=true; |
| set hive.stats.fetch.bitvector=false; |
| set hive.stats.fetch.column.stats=true; |
| set hive.support.quoted.identifiers=none; |
| set hive.tez.auto.reducer.parallelism=true; |
| set hive.tez.bucket.pruning=true; |
| set hive.vectorized.execution.enabled=true; |
| set hive.vectorized.execution.mapjoin.minmax.enabled=true; |
| set hive.vectorized.execution.mapjoin.native.fast.hashtable.enabled=true; |
| set hive.vectorized.groupby.checkinterval=4096; |
| |
| drop table if exists TLIMITOFFSET; |
| create table if not exists TLIMITOFFSET (name string, id int, flag string) STORED AS orc; |
| create table if not exists TLIMITOFFSETSTAGE (name string, id int, flag string) ROW FORMAT DELIMITED FIELDS TERMINATED BY '|' LINES TERMINATED BY '\n' STORED AS TEXTFILE ; |
| LOAD DATA LOCAL INPATH '../../data/files/tjoin3.txt' OVERWRITE INTO TABLE TLIMITOFFSETSTAGE; |
| INSERT INTO TABLE TLIMITOFFSET SELECT * from TLIMITOFFSETSTAGE; |
| |
| SELECT name,id FROM TLIMITOFFSET where name='testname' ORDER BY id LIMIT 20; |
| SELECT name,id FROM TLIMITOFFSET where name='testname' ORDER BY id LIMIT 20 OFFSET 10; |
