Prasanth J created HIVE-6968:
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Summary: list bucketing feature does not update the location map
for unpartitioned tables
Key: HIVE-6968
URL: https://issues.apache.org/jira/browse/HIVE-6968
Project: Hive
Issue Type: Bug
Affects Versions: 0.12.0, 0.11.0, 0.13.0, 0.14.0
Reporter: Prasanth J
Assignee: Prasanth J
list bucketing feature maintains a map of skewed columns/values to location in
metastore. This map is not getting updated for unpartitioned tables. For
partitioned tables the location map gets updated properly. To reproduce the
issue
{code}
hive>set hive.mapred.supports.subdirectories=true;
hive>set mapred.input.dir.recursive=true;
hive>create table t(col1 string, col2 string);
hive>load data local inpath '/home/hadoop/a.txt' into table t;
hive> select * from t;
OK
1 a
2 b
3 c
4 a
5 b
6 a
hive>create tablet1(r1 string, r2 string) skewed by (r2) on (‘a’) stored as
directories;
hive>insert into table t1 select * from t;
hive>desc extended t1;
OK
r1 string
r2 string
Detailed Table Information Table(tableName:t1, dbName:default,
owner:pjayachandran, createTime:1398295903, lastAccessTime:0, retention:0,
sd:StorageDescriptor(cols:[FieldSchema(name:r1, type:string, comment:null),
FieldSchema(name:r2, type:string, comment:null)],
location:file:/app/warehouse/t1,
inputFormat:org.apache.hadoop.mapred.TextInputFormat,
outputFormat:org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat,
compressed:false, numBuckets:-1, serdeInfo:SerDeInfo(name:null,
serializationLib:org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe,
parameters:{serialization.format=1}), bucketCols:[], sortCols:[],
parameters:{}, skewedInfo:SkewedInfo(skewedColNames:[r2],
skewedColValues:[[a]], skewedColValueLocationMaps:{}),
storedAsSubDirectories:true), partitionKeys:[], parameters:{numFiles=6,
COLUMN_STATS_ACCURATE=true, transient_lastDdlTime=1398297887, numRows=6,
totalSize=72, rawDataSize=18}, viewOriginalText:null, viewExpandedText:null,
tableType:MANAGED_TABLE)
Time taken: 0.119 seconds, Fetched: 4 row(s)
{code}
as seen from describe output *skewedColValueLocationMaps* is empty
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