HIVE-19481 : Tablesample uses incorrect logic to pick files corresponding to 
buckets. (Deepak Jaiswal, reviewed by Sergey Shelukhin)


Project: http://git-wip-us.apache.org/repos/asf/hive/repo
Commit: http://git-wip-us.apache.org/repos/asf/hive/commit/3f904ff7
Tree: http://git-wip-us.apache.org/repos/asf/hive/tree/3f904ff7
Diff: http://git-wip-us.apache.org/repos/asf/hive/diff/3f904ff7

Branch: refs/heads/branch-3
Commit: 3f904ff797ccdc4790944d2a66a541e4a995846e
Parents: 774a8ef
Author: Deepak Jaiswal <[email protected]>
Authored: Tue Jun 26 23:27:27 2018 -0700
Committer: Deepak Jaiswal <[email protected]>
Committed: Tue Jun 26 23:28:09 2018 -0700

----------------------------------------------------------------------
 .../test/resources/testconfiguration.properties |   1 +
 .../hadoop/hive/ql/metadata/Partition.java      |  13 +-
 .../hadoop/hive/ql/optimizer/SamplePruner.java  |   7 +-
 .../test/queries/clientpositive/sample10_mm.q   |  34 +
 .../archive_excludeHadoop20.q.out               | 135 +++
 .../clientpositive/beeline/smb_mapjoin_11.q.out |   8 +-
 .../test/results/clientpositive/input31.q.out   |   2 +-
 .../results/clientpositive/llap/sample10.q.out  |  20 +-
 .../clientpositive/llap/sample10_mm.q.out       | 346 ++++++++
 .../test/results/clientpositive/masking_5.q.out | 124 +++
 .../test/results/clientpositive/sample6.q.out   | 846 +++++++++++++++++--
 .../test/results/clientpositive/sample7.q.out   | 114 ++-
 .../test/results/clientpositive/sample9.q.out   | 258 +++++-
 .../results/clientpositive/smb_mapjoin_11.q.out |   8 +-
 .../infer_bucket_sort_bucketed_table.q.out      |   2 +-
 .../results/clientpositive/spark/sample10.q.out |  16 +-
 .../results/clientpositive/spark/sample2.q.out  |   4 +-
 .../results/clientpositive/spark/sample4.q.out  |   4 +-
 .../results/clientpositive/spark/sample6.q.out  | 126 +--
 .../results/clientpositive/spark/sample7.q.out  |   4 +-
 20 files changed, 1910 insertions(+), 162 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/itests/src/test/resources/testconfiguration.properties
----------------------------------------------------------------------
diff --git a/itests/src/test/resources/testconfiguration.properties 
b/itests/src/test/resources/testconfiguration.properties
index 02d8e90..12dad9f 100644
--- a/itests/src/test/resources/testconfiguration.properties
+++ b/itests/src/test/resources/testconfiguration.properties
@@ -628,6 +628,7 @@ minillaplocal.query.files=\
   results_cache_transactional.q,\
   results_cache_with_masking.q,\
   sample10.q,\
+  sample10_mm.q,\
   schema_evol_orc_acid_part_llap_io.q,\
   schema_evol_orc_acid_part.q,\
   schema_evol_orc_acid_part_update_llap_io.q,\

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/java/org/apache/hadoop/hive/ql/metadata/Partition.java
----------------------------------------------------------------------
diff --git a/ql/src/java/org/apache/hadoop/hive/ql/metadata/Partition.java 
b/ql/src/java/org/apache/hadoop/hive/ql/metadata/Partition.java
index 9dbd869..136709c 100644
--- a/ql/src/java/org/apache/hadoop/hive/ql/metadata/Partition.java
+++ b/ql/src/java/org/apache/hadoop/hive/ql/metadata/Partition.java
@@ -379,7 +379,18 @@ public class Partition implements Serializable {
     if (srcs == null) {
       return null;
     }
-    return srcs[bucketNum].getPath();
+
+    // Compute bucketid from srcs and return the 1st match.
+    for (FileStatus src : srcs) {
+      String bucketName = src.getPath().getName();
+      String bucketIdStr = 
Utilities.getBucketFileNameFromPathSubString(bucketName);
+      int bucketId = Utilities.getBucketIdFromFile(bucketIdStr);
+      if (bucketId == bucketNum) {
+        // match, return
+        return src.getPath();
+      }
+    }
+    return null;
   }
 
   @SuppressWarnings("nls")

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/java/org/apache/hadoop/hive/ql/optimizer/SamplePruner.java
----------------------------------------------------------------------
diff --git a/ql/src/java/org/apache/hadoop/hive/ql/optimizer/SamplePruner.java 
b/ql/src/java/org/apache/hadoop/hive/ql/optimizer/SamplePruner.java
index 8200e6a..75bce63 100644
--- a/ql/src/java/org/apache/hadoop/hive/ql/optimizer/SamplePruner.java
+++ b/ql/src/java/org/apache/hadoop/hive/ql/optimizer/SamplePruner.java
@@ -27,6 +27,7 @@ import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.Stack;
 
+import org.apache.hadoop.hive.metastore.TableType;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.apache.hadoop.fs.FileStatus;
@@ -192,8 +193,8 @@ public class SamplePruner extends Transform {
 
     // check if input pruning is possible
     // TODO: this code is buggy - it relies on having one file per bucket; no 
MM support (by design).
-    boolean isMmTable = 
AcidUtils.isInsertOnlyTable(part.getTable().getParameters());
-    if (sampleDescr.getInputPruning() && !isMmTable) {
+    boolean isManagedTable = part.getTable().getTableType() == 
TableType.MANAGED_TABLE;
+    if (sampleDescr.getInputPruning() && !isManagedTable) {
       LOG.trace("numerator = " + num);
       LOG.trace("denominator = " + den);
       LOG.trace("bucket count = " + bucketCount);
@@ -220,7 +221,7 @@ public class SamplePruner extends Transform {
       }
     } else {
       // need to do full scan
-      fullScanMsg = isMmTable ? "MM table" : "Tablesample not on clustered 
columns";
+      fullScanMsg = isManagedTable ? "Managed table" : "Tablesample not on 
clustered columns";
     }
     LOG.warn(fullScanMsg + ", using full table scan");
     Path[] ret = part.getPath();

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/queries/clientpositive/sample10_mm.q
----------------------------------------------------------------------
diff --git a/ql/src/test/queries/clientpositive/sample10_mm.q 
b/ql/src/test/queries/clientpositive/sample10_mm.q
new file mode 100644
index 0000000..f653e67
--- /dev/null
+++ b/ql/src/test/queries/clientpositive/sample10_mm.q
@@ -0,0 +1,34 @@
+--! qt:dataset:srcpart
+set hive.mapred.mode=nonstrict;
+set hive.exec.submitviachild=false;
+set hive.exec.submit.local.task.via.child=false;
+set hive.exec.dynamic.partition=true;
+set hive.exec.dynamic.partition.mode=nonstrict;
+
+set hive.exec.reducers.max=4;
+set hive.input.format=org.apache.hadoop.hive.ql.io.CombineHiveInputFormat;
+set hive.default.fileformat=RCFILE;
+set hive.exec.pre.hooks = 
org.apache.hadoop.hive.ql.hooks.PreExecutePrinter,org.apache.hadoop.hive.ql.hooks.EnforceReadOnlyTables,org.apache.hadoop.hive.ql.hooks.UpdateInputAccessTimeHook$PreExec;
+
+set hive.support.concurrency=true;
+set hive.txn.manager=org.apache.hadoop.hive.ql.lockmgr.DbTxnManager;
+
+create table srcpartbucket (key string, value string) partitioned by (ds 
string, hr string) clustered by (key) into 4 buckets stored as orc 
tblproperties ("transactional"="true", 
"transactional_properties"="insert_only");
+
+insert overwrite table srcpartbucket partition(ds, hr) select * from srcpart 
where ds is not null and key < 10;
+
+
+select * from srcpartbucket;
+explain select key from srcpartbucket tablesample (bucket 2 out of 4 on key);
+select key from srcpartbucket tablesample (bucket 1 out of 4 on key);
+select key from srcpartbucket tablesample (bucket 2 out of 4 on key);
+select key from srcpartbucket tablesample (bucket 3 out of 4 on key);
+select key from srcpartbucket tablesample (bucket 4 out of 4 on key);
+
+explain
+        select key from srcpartbucket tablesample (bucket 2 out of 4 on key) 
group by key;
+select key from srcpartbucket tablesample (bucket 1 out of 4 on key) group by 
key;
+select key from srcpartbucket tablesample (bucket 2 out of 4 on key) group by 
key;
+select key from srcpartbucket tablesample (bucket 3 out of 4 on key) group by 
key;
+select key from srcpartbucket tablesample (bucket 4 out of 4 on key) group by 
key;
+

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/archive_excludeHadoop20.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/archive_excludeHadoop20.q.out 
b/ql/src/test/results/clientpositive/archive_excludeHadoop20.q.out
index e4b390c..140da7b 100644
--- a/ql/src/test/results/clientpositive/archive_excludeHadoop20.q.out
+++ b/ql/src/test/results/clientpositive/archive_excludeHadoop20.q.out
@@ -215,7 +215,52 @@ POSTHOOK: type: QUERY
 POSTHOOK: Input: default@harbucket
 POSTHOOK: Input: default@harbucket@ds=1
 #### A masked pattern was here ####
+51
+51
+54
+69
+96
+133
+162
+163
+165
+165
+237
+237
+238
+238
+256
+256
 260
+289
+311
+311
+311
+332
+344
+344
+362
+369
+369
+369
+393
+397
+397
+407
+411
+432
+435
+453
+454
+454
+454
+466
+466
+466
+484
+498
+498
+498
 PREHOOK: query: ALTER TABLE tstsrcpart_n2 ARCHIVE PARTITION (ds='2008-04-08', 
hr='12')
 PREHOOK: type: ALTERTABLE_ARCHIVE
 PREHOOK: Input: default@tstsrcpart_n2
@@ -234,7 +279,52 @@ POSTHOOK: type: QUERY
 POSTHOOK: Input: default@harbucket
 POSTHOOK: Input: default@harbucket@ds=1
 #### A masked pattern was here ####
+51
+51
+54
+69
+96
+133
+162
+163
+165
+165
+237
+237
+238
+238
+256
+256
 260
+289
+311
+311
+311
+332
+344
+344
+362
+369
+369
+369
+393
+397
+397
+407
+411
+432
+435
+453
+454
+454
+454
+466
+466
+466
+484
+498
+498
+498
 PREHOOK: query: ALTER TABLE tstsrcpart_n2 UNARCHIVE PARTITION 
(ds='2008-04-08', hr='12')
 PREHOOK: type: ALTERTABLE_UNARCHIVE
 PREHOOK: Input: default@tstsrcpart_n2
@@ -253,7 +343,52 @@ POSTHOOK: type: QUERY
 POSTHOOK: Input: default@harbucket
 POSTHOOK: Input: default@harbucket@ds=1
 #### A masked pattern was here ####
+51
+51
+54
+69
+96
+133
+162
+163
+165
+165
+237
+237
+238
+238
+256
+256
 260
+289
+311
+311
+311
+332
+344
+344
+362
+369
+369
+369
+393
+397
+397
+407
+411
+432
+435
+453
+454
+454
+454
+466
+466
+466
+484
+498
+498
+498
 PREHOOK: query: CREATE TABLE old_name(key INT)
 PARTITIONED by (ds STRING)
 PREHOOK: type: CREATETABLE

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/beeline/smb_mapjoin_11.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/beeline/smb_mapjoin_11.q.out 
b/ql/src/test/results/clientpositive/beeline/smb_mapjoin_11.q.out
index afc7e95..51932e9 100644
--- a/ql/src/test/results/clientpositive/beeline/smb_mapjoin_11.q.out
+++ b/ql/src/test/results/clientpositive/beeline/smb_mapjoin_11.q.out
@@ -1931,7 +1931,7 @@ STAGE PLANS:
       Path -> Partition:
 #### A masked pattern was here ####
           Partition
-            base file name: 000001_0
+            base file name: ds=1
             input format: org.apache.hadoop.mapred.TextInputFormat
             output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
             partition values:
@@ -1981,7 +1981,7 @@ STAGE PLANS:
               name: default.test_table1_n1
             name: default.test_table1_n1
       Truncated Path -> Alias:
-        /test_table1_n1/ds=1/000001_0 [test_table1_n1]
+        /test_table1_n1/ds=1 [test_table1_n1]
 
   Stage: Stage-0
     Fetch Operator
@@ -2042,7 +2042,7 @@ STAGE PLANS:
       Path -> Partition:
 #### A masked pattern was here ####
           Partition
-            base file name: 000001_0
+            base file name: ds=1
             input format: org.apache.hadoop.mapred.TextInputFormat
             output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
             partition values:
@@ -2091,7 +2091,7 @@ STAGE PLANS:
               name: default.test_table3_n1
             name: default.test_table3_n1
       Truncated Path -> Alias:
-        /test_table3_n1/ds=1/000001_0 [test_table3_n1]
+        /test_table3_n1/ds=1 [test_table3_n1]
 
   Stage: Stage-0
     Fetch Operator

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/input31.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/input31.q.out 
b/ql/src/test/results/clientpositive/input31.q.out
index 308a5f5..0ea5f80 100644
--- a/ql/src/test/results/clientpositive/input31.q.out
+++ b/ql/src/test/results/clientpositive/input31.q.out
@@ -125,4 +125,4 @@ POSTHOOK: query: select * from tst_dest31
 POSTHOOK: type: QUERY
 POSTHOOK: Input: default@tst_dest31
 #### A masked pattern was here ####
-242
+496

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/llap/sample10.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/llap/sample10.q.out 
b/ql/src/test/results/clientpositive/llap/sample10.q.out
index 1b95314..cbceadc 100644
--- a/ql/src/test/results/clientpositive/llap/sample10.q.out
+++ b/ql/src/test/results/clientpositive/llap/sample10.q.out
@@ -89,7 +89,7 @@ STAGE PLANS:
             Path -> Partition:
 #### A masked pattern was here ####
                 Partition
-                  base file name: 000002_0
+                  base file name: hr=11
                   input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat
                   output format: 
org.apache.hadoop.hive.ql.io.RCFileOutputFormat
                   partition values:
@@ -140,7 +140,7 @@ STAGE PLANS:
                   name: default.srcpartbucket
 #### A masked pattern was here ####
                 Partition
-                  base file name: 000002_0
+                  base file name: hr=12
                   input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat
                   output format: 
org.apache.hadoop.hive.ql.io.RCFileOutputFormat
                   partition values:
@@ -191,7 +191,7 @@ STAGE PLANS:
                   name: default.srcpartbucket
 #### A masked pattern was here ####
                 Partition
-                  base file name: 000002_0
+                  base file name: hr=11
                   input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat
                   output format: 
org.apache.hadoop.hive.ql.io.RCFileOutputFormat
                   partition values:
@@ -242,7 +242,7 @@ STAGE PLANS:
                   name: default.srcpartbucket
 #### A masked pattern was here ####
                 Partition
-                  base file name: 000002_0
+                  base file name: hr=12
                   input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat
                   output format: 
org.apache.hadoop.hive.ql.io.RCFileOutputFormat
                   partition values:
@@ -292,10 +292,10 @@ STAGE PLANS:
                     name: default.srcpartbucket
                   name: default.srcpartbucket
             Truncated Path -> Alias:
-              /srcpartbucket/ds=2008-04-08/hr=11/000002_0 [srcpartbucket]
-              /srcpartbucket/ds=2008-04-08/hr=12/000002_0 [srcpartbucket]
-              /srcpartbucket/ds=2008-04-09/hr=11/000002_0 [srcpartbucket]
-              /srcpartbucket/ds=2008-04-09/hr=12/000002_0 [srcpartbucket]
+              /srcpartbucket/ds=2008-04-08/hr=11 [srcpartbucket]
+              /srcpartbucket/ds=2008-04-08/hr=12 [srcpartbucket]
+              /srcpartbucket/ds=2008-04-09/hr=11 [srcpartbucket]
+              /srcpartbucket/ds=2008-04-09/hr=12 [srcpartbucket]
         Reducer 2 
             Execution mode: vectorized, llap
             Needs Tagging: false
@@ -367,6 +367,8 @@ POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
 POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
 POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
 #### A masked pattern was here ####
+2008-04-08     14
+2008-04-09     14
 PREHOOK: query: select ds, count(1) from srcpartbucket tablesample (bucket 1 
out of 2 on key) where ds is not null group by ds ORDER BY ds ASC
 PREHOOK: type: QUERY
 PREHOOK: Input: default@srcpartbucket
@@ -383,6 +385,8 @@ POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
 POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
 POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
 #### A masked pattern was here ####
+2008-04-08     4
+2008-04-09     4
 PREHOOK: query: select * from srcpartbucket where ds is not null ORDER BY key 
ASC, value ASC, ds ASC, hr ASC
 PREHOOK: type: QUERY
 PREHOOK: Input: default@srcpartbucket

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/llap/sample10_mm.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/llap/sample10_mm.q.out 
b/ql/src/test/results/clientpositive/llap/sample10_mm.q.out
new file mode 100644
index 0000000..28d0cd0
--- /dev/null
+++ b/ql/src/test/results/clientpositive/llap/sample10_mm.q.out
@@ -0,0 +1,346 @@
+PREHOOK: query: create table srcpartbucket (key string, value string) 
partitioned by (ds string, hr string) clustered by (key) into 4 buckets stored 
as orc tblproperties ("transactional"="true", 
"transactional_properties"="insert_only")
+PREHOOK: type: CREATETABLE
+PREHOOK: Output: database:default
+PREHOOK: Output: default@srcpartbucket
+POSTHOOK: query: create table srcpartbucket (key string, value string) 
partitioned by (ds string, hr string) clustered by (key) into 4 buckets stored 
as orc tblproperties ("transactional"="true", 
"transactional_properties"="insert_only")
+POSTHOOK: type: CREATETABLE
+POSTHOOK: Output: database:default
+POSTHOOK: Output: default@srcpartbucket
+PREHOOK: query: insert overwrite table srcpartbucket partition(ds, hr) select 
* from srcpart where ds is not null and key < 10
+PREHOOK: type: QUERY
+PREHOOK: Input: default@srcpart
+PREHOOK: Input: default@srcpart@ds=2008-04-08/hr=11
+PREHOOK: Input: default@srcpart@ds=2008-04-08/hr=12
+PREHOOK: Input: default@srcpart@ds=2008-04-09/hr=11
+PREHOOK: Input: default@srcpart@ds=2008-04-09/hr=12
+PREHOOK: Output: default@srcpartbucket
+POSTHOOK: query: insert overwrite table srcpartbucket partition(ds, hr) select 
* from srcpart where ds is not null and key < 10
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@srcpart
+POSTHOOK: Input: default@srcpart@ds=2008-04-08/hr=11
+POSTHOOK: Input: default@srcpart@ds=2008-04-08/hr=12
+POSTHOOK: Input: default@srcpart@ds=2008-04-09/hr=11
+POSTHOOK: Input: default@srcpart@ds=2008-04-09/hr=12
+POSTHOOK: Output: default@srcpartbucket@ds=2008-04-08/hr=11
+POSTHOOK: Output: default@srcpartbucket@ds=2008-04-08/hr=12
+POSTHOOK: Output: default@srcpartbucket@ds=2008-04-09/hr=11
+POSTHOOK: Output: default@srcpartbucket@ds=2008-04-09/hr=12
+POSTHOOK: Lineage: srcpartbucket PARTITION(ds=2008-04-08,hr=11).key SIMPLE 
[(srcpart)srcpart.FieldSchema(name:key, type:string, comment:default), ]
+POSTHOOK: Lineage: srcpartbucket PARTITION(ds=2008-04-08,hr=11).value SIMPLE 
[(srcpart)srcpart.FieldSchema(name:value, type:string, comment:default), ]
+POSTHOOK: Lineage: srcpartbucket PARTITION(ds=2008-04-08,hr=12).key SIMPLE 
[(srcpart)srcpart.FieldSchema(name:key, type:string, comment:default), ]
+POSTHOOK: Lineage: srcpartbucket PARTITION(ds=2008-04-08,hr=12).value SIMPLE 
[(srcpart)srcpart.FieldSchema(name:value, type:string, comment:default), ]
+POSTHOOK: Lineage: srcpartbucket PARTITION(ds=2008-04-09,hr=11).key SIMPLE 
[(srcpart)srcpart.FieldSchema(name:key, type:string, comment:default), ]
+POSTHOOK: Lineage: srcpartbucket PARTITION(ds=2008-04-09,hr=11).value SIMPLE 
[(srcpart)srcpart.FieldSchema(name:value, type:string, comment:default), ]
+POSTHOOK: Lineage: srcpartbucket PARTITION(ds=2008-04-09,hr=12).key SIMPLE 
[(srcpart)srcpart.FieldSchema(name:key, type:string, comment:default), ]
+POSTHOOK: Lineage: srcpartbucket PARTITION(ds=2008-04-09,hr=12).value SIMPLE 
[(srcpart)srcpart.FieldSchema(name:value, type:string, comment:default), ]
+PREHOOK: query: select * from srcpartbucket
+PREHOOK: type: QUERY
+PREHOOK: Input: default@srcpartbucket
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+POSTHOOK: query: select * from srcpartbucket
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@srcpartbucket
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+5      val_5   2008-04-08      11
+2      val_2   2008-04-08      11
+5      val_5   2008-04-08      11
+5      val_5   2008-04-08      11
+0      val_0   2008-04-08      11
+0      val_0   2008-04-08      11
+0      val_0   2008-04-08      11
+9      val_9   2008-04-08      11
+8      val_8   2008-04-08      11
+4      val_4   2008-04-08      11
+5      val_5   2008-04-08      12
+2      val_2   2008-04-08      12
+5      val_5   2008-04-08      12
+5      val_5   2008-04-08      12
+0      val_0   2008-04-08      12
+0      val_0   2008-04-08      12
+0      val_0   2008-04-08      12
+9      val_9   2008-04-08      12
+8      val_8   2008-04-08      12
+4      val_4   2008-04-08      12
+5      val_5   2008-04-09      11
+2      val_2   2008-04-09      11
+5      val_5   2008-04-09      11
+5      val_5   2008-04-09      11
+0      val_0   2008-04-09      11
+0      val_0   2008-04-09      11
+0      val_0   2008-04-09      11
+9      val_9   2008-04-09      11
+8      val_8   2008-04-09      11
+4      val_4   2008-04-09      11
+5      val_5   2008-04-09      12
+2      val_2   2008-04-09      12
+5      val_5   2008-04-09      12
+5      val_5   2008-04-09      12
+0      val_0   2008-04-09      12
+0      val_0   2008-04-09      12
+0      val_0   2008-04-09      12
+9      val_9   2008-04-09      12
+8      val_8   2008-04-09      12
+4      val_4   2008-04-09      12
+PREHOOK: query: explain select key from srcpartbucket tablesample (bucket 2 
out of 4 on key)
+PREHOOK: type: QUERY
+POSTHOOK: query: explain select key from srcpartbucket tablesample (bucket 2 
out of 4 on key)
+POSTHOOK: type: QUERY
+STAGE DEPENDENCIES:
+  Stage-0 is a root stage
+
+STAGE PLANS:
+  Stage: Stage-0
+    Fetch Operator
+      limit: -1
+      Processor Tree:
+        TableScan
+          alias: srcpartbucket
+          Filter Operator
+            predicate: (((hash(key) & 2147483647) % 4) = 1) (type: boolean)
+            Select Operator
+              expressions: key (type: string)
+              outputColumnNames: _col0
+              ListSink
+
+PREHOOK: query: select key from srcpartbucket tablesample (bucket 1 out of 4 
on key)
+PREHOOK: type: QUERY
+PREHOOK: Input: default@srcpartbucket
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+POSTHOOK: query: select key from srcpartbucket tablesample (bucket 1 out of 4 
on key)
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@srcpartbucket
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+PREHOOK: query: select key from srcpartbucket tablesample (bucket 2 out of 4 
on key)
+PREHOOK: type: QUERY
+PREHOOK: Input: default@srcpartbucket
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+POSTHOOK: query: select key from srcpartbucket tablesample (bucket 2 out of 4 
on key)
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@srcpartbucket
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+5
+2
+5
+5
+0
+0
+0
+5
+2
+5
+5
+0
+0
+0
+5
+2
+5
+5
+0
+0
+0
+5
+2
+5
+5
+0
+0
+0
+PREHOOK: query: select key from srcpartbucket tablesample (bucket 3 out of 4 
on key)
+PREHOOK: type: QUERY
+PREHOOK: Input: default@srcpartbucket
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+POSTHOOK: query: select key from srcpartbucket tablesample (bucket 3 out of 4 
on key)
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@srcpartbucket
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+9
+8
+9
+8
+9
+8
+9
+8
+PREHOOK: query: select key from srcpartbucket tablesample (bucket 4 out of 4 
on key)
+PREHOOK: type: QUERY
+PREHOOK: Input: default@srcpartbucket
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+POSTHOOK: query: select key from srcpartbucket tablesample (bucket 4 out of 4 
on key)
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@srcpartbucket
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+4
+4
+4
+4
+PREHOOK: query: explain
+        select key from srcpartbucket tablesample (bucket 2 out of 4 on key) 
group by key
+PREHOOK: type: QUERY
+POSTHOOK: query: explain
+        select key from srcpartbucket tablesample (bucket 2 out of 4 on key) 
group by key
+POSTHOOK: type: QUERY
+STAGE DEPENDENCIES:
+  Stage-1 is a root stage
+  Stage-0 depends on stages: Stage-1
+
+STAGE PLANS:
+  Stage: Stage-1
+    Tez
+#### A masked pattern was here ####
+      Edges:
+        Reducer 2 <- Map 1 (SIMPLE_EDGE)
+#### A masked pattern was here ####
+      Vertices:
+        Map 1 
+            Map Operator Tree:
+                TableScan
+                  alias: srcpartbucket
+                  Statistics: Num rows: 40 Data size: 3400 Basic stats: 
COMPLETE Column stats: COMPLETE
+                  Filter Operator
+                    predicate: (((hash(key) & 2147483647) % 4) = 1) (type: 
boolean)
+                    Statistics: Num rows: 20 Data size: 1700 Basic stats: 
COMPLETE Column stats: COMPLETE
+                    Group By Operator
+                      keys: key (type: string)
+                      mode: hash
+                      outputColumnNames: _col0
+                      Statistics: Num rows: 3 Data size: 255 Basic stats: 
COMPLETE Column stats: COMPLETE
+                      Reduce Output Operator
+                        key expressions: _col0 (type: string)
+                        sort order: +
+                        Map-reduce partition columns: _col0 (type: string)
+                        Statistics: Num rows: 3 Data size: 255 Basic stats: 
COMPLETE Column stats: COMPLETE
+            Execution mode: vectorized, llap
+            LLAP IO: may be used (ACID table)
+        Reducer 2 
+            Execution mode: vectorized, llap
+            Reduce Operator Tree:
+              Group By Operator
+                keys: KEY._col0 (type: string)
+                mode: mergepartial
+                outputColumnNames: _col0
+                Statistics: Num rows: 3 Data size: 255 Basic stats: COMPLETE 
Column stats: COMPLETE
+                File Output Operator
+                  compressed: false
+                  Statistics: Num rows: 3 Data size: 255 Basic stats: COMPLETE 
Column stats: COMPLETE
+                  table:
+                      input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
+                      output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
+                      serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+
+  Stage: Stage-0
+    Fetch Operator
+      limit: -1
+      Processor Tree:
+        ListSink
+
+PREHOOK: query: select key from srcpartbucket tablesample (bucket 1 out of 4 
on key) group by key
+PREHOOK: type: QUERY
+PREHOOK: Input: default@srcpartbucket
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+POSTHOOK: query: select key from srcpartbucket tablesample (bucket 1 out of 4 
on key) group by key
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@srcpartbucket
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+PREHOOK: query: select key from srcpartbucket tablesample (bucket 2 out of 4 
on key) group by key
+PREHOOK: type: QUERY
+PREHOOK: Input: default@srcpartbucket
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+POSTHOOK: query: select key from srcpartbucket tablesample (bucket 2 out of 4 
on key) group by key
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@srcpartbucket
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+5
+0
+2
+PREHOOK: query: select key from srcpartbucket tablesample (bucket 3 out of 4 
on key) group by key
+PREHOOK: type: QUERY
+PREHOOK: Input: default@srcpartbucket
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+POSTHOOK: query: select key from srcpartbucket tablesample (bucket 3 out of 4 
on key) group by key
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@srcpartbucket
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+9
+8
+PREHOOK: query: select key from srcpartbucket tablesample (bucket 4 out of 4 
on key) group by key
+PREHOOK: type: QUERY
+PREHOOK: Input: default@srcpartbucket
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+PREHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+POSTHOOK: query: select key from srcpartbucket tablesample (bucket 4 out of 4 
on key) group by key
+POSTHOOK: type: QUERY
+POSTHOOK: Input: default@srcpartbucket
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-08/hr=12
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=11
+POSTHOOK: Input: default@srcpartbucket@ds=2008-04-09/hr=12
+#### A masked pattern was here ####
+4

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/masking_5.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/masking_5.q.out 
b/ql/src/test/results/clientpositive/masking_5.q.out
index 498fc11..420a680 100644
--- a/ql/src/test/results/clientpositive/masking_5.q.out
+++ b/ql/src/test/results/clientpositive/masking_5.q.out
@@ -788,3 +788,127 @@ POSTHOOK: Input: default@masking_test_n6
 484    val_484
 98     val_98
 86     val_86
+327    val_327
+437    val_437
+97     val_97
+435    val_435
+169    val_169
+19     val_19
+307    val_307
+255    val_255
+169    val_169
+307    val_307
+419    val_419
+399    val_399
+153    val_153
+287    val_287
+315    val_315
+97     val_97
+427    val_427
+369    val_369
+341    val_341
+77     val_77
+85     val_85
+169    val_169
+409    val_409
+369    val_369
+67     val_67
+137    val_137
+409    val_409
+407    val_407
+421    val_421
+133    val_133
+187    val_187
+233    val_233
+197    val_197
+221    val_221
+417    val_417
+353    val_353
+83     val_83
+249    val_249
+157    val_157
+317    val_317
+165    val_165
+325    val_325
+443    val_443
+169    val_169
+199    val_199
+417    val_417
+479    val_479
+43     val_43
+237    val_237
+491    val_491
+51     val_51
+119    val_119
+149    val_149
+163    val_163
+255    val_255
+351    val_351
+327    val_327
+291    val_291
+165    val_165
+397    val_397
+57     val_57
+187    val_187
+191    val_191
+199    val_199
+311    val_311
+201    val_201
+393    val_393
+197    val_197
+339    val_339
+119    val_119
+113    val_113
+17     val_17
+409    val_409
+105    val_105
+483    val_483
+463    val_463
+195    val_195
+325    val_325
+463    val_463
+229    val_229
+411    val_411
+327    val_327
+467    val_467
+365    val_365
+191    val_191
+397    val_397
+377    val_377
+353    val_353
+485    val_485
+239    val_239
+495    val_495
+113    val_113
+417    val_417
+67     val_67
+181    val_181
+69     val_69
+399    val_399
+83     val_83
+453    val_453
+137    val_137
+449    val_449
+149    val_149
+311    val_311
+41     val_41
+65     val_65
+119    val_119
+221    val_221
+289    val_289
+195    val_195
+199    val_199
+233    val_233
+229    val_229
+239    val_239
+27     val_27
+317    val_317
+51     val_51
+459    val_459
+497    val_497
+311    val_311
+177    val_177
+237    val_237
+187    val_187
+459    val_459
+369    val_369

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/sample6.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/sample6.q.out 
b/ql/src/test/results/clientpositive/sample6.q.out
index 7f853e5..a6a6f2c 100644
--- a/ql/src/test/results/clientpositive/sample6.q.out
+++ b/ql/src/test/results/clientpositive/sample6.q.out
@@ -95,7 +95,7 @@ STAGE PLANS:
       Path -> Partition:
 #### A masked pattern was here ####
           Partition
-            base file name: 000000_0
+            base file name: srcbucket
             input format: org.apache.hadoop.mapred.TextInputFormat
             output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
             properties:
@@ -144,7 +144,7 @@ STAGE PLANS:
               name: default.srcbucket
             name: default.srcbucket
       Truncated Path -> Alias:
-        /srcbucket/000000_0 [s]
+        /srcbucket [s]
       Needs Tagging: false
       Reduce Operator Tree:
         Group By Operator
@@ -437,55 +437,125 @@ POSTHOOK: Input: default@dest1_n27
 6      val_7
 10     val_10
 10     val_11
+17     val_17
+21     val_22
+21     val_22
+21     val_22
+21     val_22
+27     val_27
 30     val_30
 30     val_31
+31     val_32
 40     val_41
 40     val_41
+51     val_51
+51     val_51
+51     val_52
+57     val_57
 58     val_58
 58     val_58
 58     val_59
 58     val_59
 64     val_64
+65     val_65
+65     val_66
+65     val_66
 70     val_70
 70     val_70
 70     val_70
 70     val_71
 80     val_80
 80     val_81
+83     val_83
+83     val_83
 86     val_86
 86     val_87
 90     val_90
 90     val_90
 90     val_90
+91     val_92
 98     val_98
 98     val_98
+105    val_105
+105    val_106
+105    val_106
 110    val_111
+113    val_113
+113    val_113
 116    val_116
 116    val_117
+117    val_118
+117    val_118
+119    val_119
+119    val_119
+119    val_119
+119    val_120
+119    val_120
+119    val_120
+121    val_122
+121    val_122
+123    val_124
+123    val_124
 126    val_126
 126    val_127
 126    val_127
 134    val_134
 134    val_134
 134    val_135
+137    val_137
+137    val_137
+137    val_138
+153    val_153
+153    val_154
+153    val_154
 156    val_156
 156    val_157
 156    val_157
+157    val_157
+157    val_158
+157    val_158
 158    val_158
+163    val_163
+169    val_169
+169    val_169
+169    val_169
+169    val_169
+177    val_177
+177    val_178
+177    val_178
 178    val_178
 178    val_179
 178    val_179
 184    val_185
+187    val_187
+187    val_187
+187    val_187
+195    val_195
+195    val_195
+197    val_197
+197    val_197
+197    val_198
 206    val_207
 206    val_207
 206    val_207
 208    val_208
 208    val_208
 208    val_208
+221    val_221
+221    val_221
+229    val_229
+229    val_229
+237    val_237
+237    val_237
+243    val_244
+243    val_244
 244    val_244
 244    val_245
 244    val_245
 244    val_245
+249    val_249
+249    val_250
+249    val_250
 252    val_252
 252    val_253
 254    val_255
@@ -493,27 +563,40 @@ POSTHOOK: Input: default@dest1_n27
 256    val_256
 256    val_257
 266    val_266
+271    val_272
 272    val_272
 272    val_272
 272    val_273
 286    val_286
 286    val_287
+289    val_289
+289    val_290
 292    val_292
 292    val_293
 292    val_293
 304    val_305
+307    val_307
+307    val_307
 308    val_308
 308    val_309
 308    val_309
+315    val_315
 316    val_316
 316    val_316
 316    val_316
+317    val_317
+317    val_317
+317    val_318
 326    val_327
+327    val_327
+327    val_327
+327    val_327
 334    val_335
 336    val_336
 336    val_337
 338    val_338
 338    val_339
+339    val_339
 342    val_342
 342    val_342
 342    val_343
@@ -526,21 +609,45 @@ POSTHOOK: Input: default@dest1_n27
 348    val_348
 348    val_348
 348    val_349
+349    val_350
+349    val_350
+349    val_350
+349    val_350
 352    val_353
 352    val_353
+353    val_353
+353    val_353
+353    val_354
+355    val_356
+355    val_356
 360    val_360
 360    val_361
 362    val_362
 364    val_364
 364    val_365
+369    val_369
+369    val_369
+369    val_369
+369    val_370
+371    val_372
+371    val_372
+371    val_372
+371    val_372
+377    val_377
 378    val_378
 378    val_379
+391    val_392
+391    val_392
 392    val_392
 392    val_393
 392    val_393
 396    val_396
 396    val_396
 396    val_396
+399    val_399
+399    val_399
+399    val_400
+399    val_400
 402    val_402
 402    val_403
 402    val_403
@@ -550,15 +657,31 @@ POSTHOOK: Input: default@dest1_n27
 404    val_405
 404    val_405
 404    val_405
+407    val_407
+407    val_408
+407    val_408
+407    val_408
 408    val_409
 408    val_409
 410    val_411
+417    val_417
+417    val_417
+417    val_417
+419    val_419
+423    val_424
 426    val_427
+427    val_427
+427    val_428
+427    val_428
 440    val_441
 440    val_441
+449    val_449
 452    val_452
 458    val_458
 458    val_458
+463    val_463
+463    val_463
+463    val_464
 466    val_466
 466    val_466
 466    val_466
@@ -569,10 +692,14 @@ POSTHOOK: Input: default@dest1_n27
 478    val_478
 478    val_479
 478    val_479
+479    val_479
 482    val_482
 482    val_483
 484    val_484
 484    val_485
+497    val_497
+497    val_498
+497    val_498
 PREHOOK: query: EXPLAIN EXTENDED SELECT s.* FROM srcbucket TABLESAMPLE (BUCKET 
4 OUT OF 4 on key) s
 ORDER BY key, value
 PREHOOK: type: QUERY
@@ -613,7 +740,7 @@ STAGE PLANS:
       Path -> Partition:
 #### A masked pattern was here ####
           Partition
-            base file name: 000001_0
+            base file name: srcbucket
             input format: org.apache.hadoop.mapred.TextInputFormat
             output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
             properties:
@@ -662,7 +789,7 @@ STAGE PLANS:
               name: default.srcbucket
             name: default.srcbucket
       Truncated Path -> Alias:
-        /srcbucket/000001_0 [s]
+        /srcbucket [s]
       Needs Tagging: false
       Reduce Operator Tree:
         Select Operator
@@ -712,11 +839,20 @@ POSTHOOK: Input: default@srcbucket
 5      val_5
 5      val_5
 5      val_6
+12     val_12
+12     val_12
+12     val_13
 15     val_15
 15     val_15
 15     val_16
 15     val_16
+16     val_17
+16     val_17
+22     val_23
 23     val_24
+24     val_24
+24     val_24
+28     val_28
 33     val_33
 33     val_34
 35     val_35
@@ -725,20 +861,47 @@ POSTHOOK: Input: default@srcbucket
 35     val_36
 35     val_36
 35     val_36
+42     val_42
+42     val_42
+42     val_43
+42     val_43
+42     val_43
+44     val_44
 47     val_47
 47     val_48
 49     val_50
 49     val_50
+50     val_51
+52     val_53
+52     val_53
+52     val_53
+52     val_53
 53     val_53
 53     val_54
+56     val_57
 63     val_64
 75     val_76
+76     val_76
+76     val_76
+76     val_77
+76     val_77
+76     val_77
 87     val_87
 87     val_88
 87     val_88
+94     val_95
 95     val_95
 95     val_95
+104    val_104
+104    val_104
+104    val_105
+104    val_105
+104    val_105
 111    val_111
+114    val_114
+114    val_115
+114    val_115
+114    val_115
 125    val_125
 125    val_125
 125    val_126
@@ -746,6 +909,12 @@ POSTHOOK: Input: default@srcbucket
 129    val_129
 129    val_130
 129    val_130
+138    val_138
+138    val_138
+138    val_138
+138    val_138
+138    val_139
+138    val_139
 145    val_145
 147    val_148
 147    val_148
@@ -755,13 +924,28 @@ POSTHOOK: Input: default@srcbucket
 161    val_162
 161    val_162
 161    val_162
+166    val_166
 167    val_167
 167    val_167
 167    val_167
 167    val_168
+168    val_168
+168    val_169
+170    val_170
+170    val_171
+172    val_172
+172    val_172
+172    val_173
+180    val_180
+192    val_192
+192    val_193
 193    val_193
 193    val_193
 193    val_193
+196    val_196
+196    val_197
+196    val_197
+196    val_197
 203    val_203
 203    val_203
 207    val_207
@@ -775,17 +959,25 @@ POSTHOOK: Input: default@srcbucket
 213    val_214
 219    val_219
 219    val_219
+224    val_224
+224    val_224
+224    val_225
 227    val_228
 241    val_241
 241    val_242
 241    val_242
 241    val_242
 241    val_242
+242    val_242
+242    val_242
+242    val_243
 245    val_246
 245    val_246
 257    val_257
 257    val_258
 257    val_258
+258    val_258
+258    val_259
 259    val_260
 259    val_260
 263    val_263
@@ -793,10 +985,16 @@ POSTHOOK: Input: default@srcbucket
 265    val_265
 265    val_266
 267    val_268
+268    val_269
 273    val_273
 273    val_273
 273    val_273
 273    val_274
+274    val_274
+274    val_275
+278    val_278
+278    val_278
+278    val_279
 281    val_281
 281    val_281
 281    val_282
@@ -805,8 +1003,18 @@ POSTHOOK: Input: default@srcbucket
 283    val_283
 293    val_294
 293    val_294
+300    val_301
+300    val_301
 303    val_304
 303    val_304
+318    val_318
+318    val_318
+318    val_318
+318    val_319
+322    val_322
+322    val_322
+322    val_323
+330    val_331
 331    val_331
 331    val_331
 331    val_332
@@ -814,6 +1022,10 @@ POSTHOOK: Input: default@srcbucket
 335    val_335
 335    val_336
 335    val_336
+356    val_356
+356    val_357
+356    val_357
+358    val_359
 367    val_367
 367    val_367
 367    val_368
@@ -823,8 +1035,15 @@ POSTHOOK: Input: default@srcbucket
 379    val_379
 379    val_380
 381    val_382
+382    val_382
+382    val_382
+382    val_383
+382    val_383
 385    val_386
 385    val_386
+390    val_391
+390    val_391
+390    val_391
 395    val_395
 395    val_395
 395    val_396
@@ -839,7 +1058,16 @@ POSTHOOK: Input: default@srcbucket
 403    val_403
 403    val_403
 405    val_406
+406    val_406
+406    val_406
+406    val_406
+406    val_406
+406    val_407
+412    val_413
+412    val_413
 415    val_416
+416    val_417
+418    val_418
 429    val_429
 429    val_429
 429    val_430
@@ -848,8 +1076,21 @@ POSTHOOK: Input: default@srcbucket
 431    val_431
 431    val_431
 431    val_432
+436    val_436
+436    val_437
 441    val_442
 447    val_448
+448    val_448
+448    val_449
+468    val_468
+468    val_468
+468    val_468
+468    val_468
+468    val_469
+468    val_469
+468    val_469
+470    val_470
+470    val_471
 475    val_475
 475    val_476
 481    val_481
@@ -859,6 +1100,13 @@ POSTHOOK: Input: default@srcbucket
 489    val_489
 489    val_489
 489    val_490
+492    val_492
+492    val_492
+492    val_493
+492    val_493
+494    val_494
+494    val_495
+494    val_495
 PREHOOK: query: EXPLAIN EXTENDED SELECT s.* FROM srcbucket TABLESAMPLE (BUCKET 
1 OUT OF 2 on key) s
 ORDER BY key, value
 PREHOOK: type: QUERY
@@ -899,7 +1147,7 @@ STAGE PLANS:
       Path -> Partition:
 #### A masked pattern was here ####
           Partition
-            base file name: 000000_0
+            base file name: srcbucket
             input format: org.apache.hadoop.mapred.TextInputFormat
             output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
             properties:
@@ -948,7 +1196,7 @@ STAGE PLANS:
               name: default.srcbucket
             name: default.srcbucket
       Truncated Path -> Alias:
-        /srcbucket/000000_0 [s]
+        /srcbucket [s]
       Needs Tagging: false
       Reduce Operator Tree:
         Select Operator
@@ -996,75 +1244,185 @@ POSTHOOK: Input: default@srcbucket
 #### A masked pattern was here ####
 2      val_2
 2      val_3
+3      val_4
 6      val_7
 6      val_7
 10     val_10
 10     val_11
+17     val_17
+19     val_19
+19     val_20
 20     val_20
 20     val_21
 20     val_21
+21     val_22
+21     val_22
+21     val_22
+21     val_22
+27     val_27
+29     val_30
+29     val_30
 30     val_30
 30     val_31
+31     val_32
 40     val_41
 40     val_41
+41     val_41
+43     val_43
 46     val_47
 48     val_49
 48     val_49
+51     val_51
+51     val_51
+51     val_52
 54     val_54
+57     val_57
 58     val_58
 58     val_58
 58     val_59
 58     val_59
+59     val_60
 60     val_61
+61     val_62
 64     val_64
+65     val_65
+65     val_66
+65     val_66
+67     val_67
+67     val_67
 68     val_69
+69     val_69
+69     val_70
 70     val_70
 70     val_70
 70     val_70
 70     val_71
+77     val_77
+77     val_78
+77     val_78
 80     val_80
 80     val_81
+83     val_83
+83     val_83
 84     val_84
 84     val_84
+85     val_85
+85     val_86
 86     val_86
 86     val_87
+89     val_90
+89     val_90
+89     val_90
 90     val_90
 90     val_90
 90     val_90
+91     val_92
+93     val_94
+93     val_94
+93     val_94
 96     val_96
+97     val_97
+97     val_97
+97     val_98
+97     val_98
 98     val_98
 98     val_98
+99     val_100
+101    val_102
+105    val_105
+105    val_106
+105    val_106
 106    val_107
 110    val_111
+113    val_113
+113    val_113
 116    val_116
 116    val_117
+117    val_118
+117    val_118
+119    val_119
+119    val_119
+119    val_119
+119    val_120
+119    val_120
+119    val_120
+121    val_122
+121    val_122
+123    val_124
+123    val_124
 126    val_126
 126    val_127
 126    val_127
 132    val_133
 132    val_133
+133    val_133
+133    val_134
 134    val_134
 134    val_134
 134    val_135
+135    val_136
+135    val_136
+135    val_136
+137    val_137
+137    val_137
+137    val_138
 140    val_141
 146    val_146
 146    val_146
+149    val_149
+149    val_149
+149    val_150
+153    val_153
+153    val_154
+153    val_154
 156    val_156
 156    val_157
 156    val_157
+157    val_157
+157    val_158
+157    val_158
 158    val_158
 162    val_162
 162    val_163
+163    val_163
 164    val_164
 164    val_164
 164    val_165
 164    val_165
+165    val_165
+165    val_165
+165    val_166
+169    val_169
+169    val_169
+169    val_169
+169    val_169
+177    val_177
+177    val_178
+177    val_178
 178    val_178
 178    val_179
 178    val_179
+181    val_181
 182    val_183
 184    val_185
+185    val_186
+187    val_187
+187    val_187
+187    val_187
 190    val_190
+191    val_191
+191    val_191
+191    val_192
+195    val_195
+195    val_195
+197    val_197
+197    val_197
+197    val_198
+199    val_199
+199    val_199
+199    val_199
+199    val_200
+201    val_201
 202    val_202
 206    val_207
 206    val_207
@@ -1074,34 +1432,57 @@ POSTHOOK: Input: default@srcbucket
 208    val_208
 212    val_213
 214    val_214
+215    val_216
 216    val_216
 216    val_216
 216    val_217
+221    val_221
+221    val_221
 226    val_226
 226    val_227
 226    val_227
 226    val_227
 226    val_227
+229    val_229
+229    val_229
+231    val_232
+233    val_233
+233    val_233
+237    val_237
+237    val_237
 238    val_238
 238    val_238
 238    val_239
+239    val_239
+239    val_239
+239    val_240
+239    val_240
 240    val_241
+243    val_244
+243    val_244
 244    val_244
 244    val_245
 244    val_245
 244    val_245
 248    val_248
 248    val_249
+249    val_249
+249    val_250
+249    val_250
 252    val_252
 252    val_253
 254    val_255
+255    val_255
+255    val_255
 256    val_256
 256    val_256
 256    val_257
 260    val_260
 260    val_261
 260    val_261
+261    val_262
 266    val_266
+271    val_272
 272    val_272
 272    val_272
 272    val_273
@@ -1111,10 +1492,20 @@ POSTHOOK: Input: default@srcbucket
 284    val_285
 286    val_286
 286    val_287
+287    val_287
+287    val_288
+287    val_288
+289    val_289
+289    val_290
+291    val_291
+291    val_292
+291    val_292
 292    val_292
 292    val_293
 292    val_293
 304    val_305
+307    val_307
+307    val_307
 308    val_308
 308    val_309
 308    val_309
@@ -1122,37 +1513,81 @@ POSTHOOK: Input: default@srcbucket
 310    val_311
 310    val_311
 310    val_311
+311    val_311
+311    val_311
+311    val_311
+313    val_314
+315    val_315
 316    val_316
 316    val_316
 316    val_316
+317    val_317
+317    val_317
+317    val_318
 324    val_325
+325    val_325
+325    val_325
 326    val_327
+327    val_327
+327    val_327
+327    val_327
 332    val_332
 334    val_335
 336    val_336
 336    val_337
+337    val_338
 338    val_338
 338    val_339
+339    val_339
+341    val_341
+341    val_342
+341    val_342
+341    val_342
 342    val_342
 342    val_342
 342    val_343
+343    val_344
 344    val_344
 344    val_344
 344    val_345
+347    val_348
+347    val_348
 348    val_348
 348    val_348
 348    val_348
 348    val_348
 348    val_348
 348    val_349
+349    val_350
+349    val_350
+349    val_350
+349    val_350
+351    val_351
+351    val_352
+351    val_352
 352    val_353
 352    val_353
+353    val_353
+353    val_353
+353    val_354
+355    val_356
+355    val_356
 360    val_360
 360    val_361
 362    val_362
 364    val_364
 364    val_365
+365    val_365
 368    val_368
+369    val_369
+369    val_369
+369    val_369
+369    val_370
+371    val_372
+371    val_372
+371    val_372
+371    val_372
+377    val_377
 378    val_378
 378    val_379
 384    val_384
@@ -1165,13 +1600,24 @@ POSTHOOK: Input: default@srcbucket
 386    val_387
 386    val_387
 388    val_389
+391    val_392
+391    val_392
 392    val_392
 392    val_393
 392    val_393
+393    val_393
+393    val_394
+393    val_394
 394    val_394
 396    val_396
 396    val_396
 396    val_396
+397    val_397
+397    val_397
+399    val_399
+399    val_399
+399    val_400
+399    val_400
 402    val_402
 402    val_403
 402    val_403
@@ -1181,13 +1627,36 @@ POSTHOOK: Input: default@srcbucket
 404    val_405
 404    val_405
 404    val_405
+407    val_407
+407    val_408
+407    val_408
+407    val_408
 408    val_409
 408    val_409
+409    val_409
+409    val_409
+409    val_409
+409    val_410
+409    val_410
 410    val_411
+411    val_411
+411    val_412
 414    val_414
 414    val_414
 414    val_415
+417    val_417
+417    val_417
+417    val_417
+419    val_419
+421    val_421
+421    val_422
+421    val_422
+423    val_424
+425    val_426
 426    val_427
+427    val_427
+427    val_428
+427    val_428
 428    val_429
 430    val_430
 430    val_430
@@ -1195,13 +1664,24 @@ POSTHOOK: Input: default@srcbucket
 430    val_431
 432    val_432
 432    val_433
+435    val_435
+435    val_436
+437    val_437
+437    val_438
 440    val_441
 440    val_441
+443    val_443
+443    val_444
+443    val_444
+443    val_444
 444    val_444
 446    val_446
 446    val_447
 446    val_447
+449    val_449
 452    val_452
+453    val_453
+453    val_454
 454    val_454
 454    val_454
 454    val_454
@@ -1209,10 +1689,19 @@ POSTHOOK: Input: default@srcbucket
 454    val_455
 458    val_458
 458    val_458
+459    val_459
+459    val_459
+459    val_460
+463    val_463
+463    val_463
+463    val_464
 466    val_466
 466    val_466
 466    val_466
+467    val_467
+467    val_468
 472    val_472
+473    val_474
 474    val_475
 474    val_475
 476    val_477
@@ -1221,6 +1710,7 @@ POSTHOOK: Input: default@srcbucket
 478    val_478
 478    val_479
 478    val_479
+479    val_479
 480    val_480
 480    val_480
 480    val_480
@@ -1228,11 +1718,23 @@ POSTHOOK: Input: default@srcbucket
 480    val_481
 482    val_482
 482    val_483
+483    val_483
 484    val_484
 484    val_485
+485    val_485
+485    val_486
+485    val_486
 488    val_489
 490    val_490
 490    val_491
+491    val_491
+491    val_492
+491    val_492
+495    val_495
+495    val_496
+497    val_497
+497    val_498
+497    val_498
 498    val_498
 498    val_498
 498    val_498
@@ -2239,57 +2741,7 @@ STAGE PLANS:
       Path -> Partition:
 #### A masked pattern was here ####
           Partition
-            base file name: 000000_0
-            input format: org.apache.hadoop.mapred.TextInputFormat
-            output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-            properties:
-              COLUMN_STATS_ACCURATE 
{"BASIC_STATS":"true","COLUMN_STATS":{"key":"true","value":"true"}}
-              bucket_count 4
-              bucket_field_name key
-              bucketing_version 2
-              column.name.delimiter ,
-              columns key,value
-              columns.comments 
-              columns.types int:string
-#### A masked pattern was here ####
-              name default.srcbucket2
-              numFiles 4
-              numRows 500
-              rawDataSize 5312
-              serialization.ddl struct srcbucket2 { i32 key, string value}
-              serialization.format 1
-              serialization.lib 
org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
-              totalSize 5812
-#### A masked pattern was here ####
-            serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
-          
-              input format: org.apache.hadoop.mapred.TextInputFormat
-              output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-              properties:
-                COLUMN_STATS_ACCURATE 
{"BASIC_STATS":"true","COLUMN_STATS":{"key":"true","value":"true"}}
-                bucket_count 4
-                bucket_field_name key
-                bucketing_version 2
-                column.name.delimiter ,
-                columns key,value
-                columns.comments 
-                columns.types int:string
-#### A masked pattern was here ####
-                name default.srcbucket2
-                numFiles 4
-                numRows 500
-                rawDataSize 5312
-                serialization.ddl struct srcbucket2 { i32 key, string value}
-                serialization.format 1
-                serialization.lib 
org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
-                totalSize 5812
-#### A masked pattern was here ####
-              serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
-              name: default.srcbucket2
-            name: default.srcbucket2
-#### A masked pattern was here ####
-          Partition
-            base file name: 000002_0
+            base file name: srcbucket2
             input format: org.apache.hadoop.mapred.TextInputFormat
             output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
             properties:
@@ -2338,8 +2790,7 @@ STAGE PLANS:
               name: default.srcbucket2
             name: default.srcbucket2
       Truncated Path -> Alias:
-        /srcbucket2/000000_0 [s]
-        /srcbucket2/000002_0 [s]
+        /srcbucket2 [s]
       Needs Tagging: false
       Reduce Operator Tree:
         Select Operator
@@ -2387,38 +2838,91 @@ POSTHOOK: Input: default@srcbucket2
 #### A masked pattern was here ####
 2      val_2
 10     val_10
+17     val_17
+19     val_19
 20     val_20
+27     val_27
 30     val_30
+41     val_41
+43     val_43
+51     val_51
+51     val_51
 54     val_54
+57     val_57
 58     val_58
 58     val_58
 64     val_64
+65     val_65
+67     val_67
+67     val_67
+69     val_69
 70     val_70
 70     val_70
 70     val_70
+77     val_77
 80     val_80
+83     val_83
+83     val_83
 84     val_84
 84     val_84
+85     val_85
 86     val_86
 90     val_90
 90     val_90
 90     val_90
 96     val_96
+97     val_97
+97     val_97
 98     val_98
 98     val_98
+105    val_105
+113    val_113
+113    val_113
 116    val_116
+119    val_119
+119    val_119
+119    val_119
 126    val_126
+133    val_133
 134    val_134
 134    val_134
+137    val_137
+137    val_137
 146    val_146
 146    val_146
+149    val_149
+149    val_149
+153    val_153
 156    val_156
+157    val_157
 158    val_158
 162    val_162
+163    val_163
 164    val_164
 164    val_164
+165    val_165
+165    val_165
+169    val_169
+169    val_169
+169    val_169
+169    val_169
+177    val_177
 178    val_178
+181    val_181
+187    val_187
+187    val_187
+187    val_187
 190    val_190
+191    val_191
+191    val_191
+195    val_195
+195    val_195
+197    val_197
+197    val_197
+199    val_199
+199    val_199
+199    val_199
+201    val_201
 202    val_202
 208    val_208
 208    val_208
@@ -2426,12 +2930,25 @@ POSTHOOK: Input: default@srcbucket2
 214    val_214
 216    val_216
 216    val_216
+221    val_221
+221    val_221
 226    val_226
+229    val_229
+229    val_229
+233    val_233
+233    val_233
+237    val_237
+237    val_237
 238    val_238
 238    val_238
+239    val_239
+239    val_239
 244    val_244
 248    val_248
+249    val_249
 252    val_252
+255    val_255
+255    val_255
 256    val_256
 256    val_256
 260    val_260
@@ -2440,15 +2957,33 @@ POSTHOOK: Input: default@srcbucket2
 272    val_272
 284    val_284
 286    val_286
+287    val_287
+289    val_289
+291    val_291
 292    val_292
+307    val_307
+307    val_307
 308    val_308
 310    val_310
+311    val_311
+311    val_311
+311    val_311
+315    val_315
 316    val_316
 316    val_316
 316    val_316
+317    val_317
+317    val_317
+325    val_325
+325    val_325
+327    val_327
+327    val_327
+327    val_327
 332    val_332
 336    val_336
 338    val_338
+339    val_339
+341    val_341
 342    val_342
 342    val_342
 344    val_344
@@ -2458,49 +2993,89 @@ POSTHOOK: Input: default@srcbucket2
 348    val_348
 348    val_348
 348    val_348
+351    val_351
+353    val_353
+353    val_353
 360    val_360
 362    val_362
 364    val_364
+365    val_365
 368    val_368
+369    val_369
+369    val_369
+369    val_369
+377    val_377
 378    val_378
 384    val_384
 384    val_384
 384    val_384
 386    val_386
 392    val_392
+393    val_393
 394    val_394
 396    val_396
 396    val_396
 396    val_396
+397    val_397
+397    val_397
+399    val_399
+399    val_399
 402    val_402
 404    val_404
 404    val_404
+407    val_407
+409    val_409
+409    val_409
+409    val_409
+411    val_411
 414    val_414
 414    val_414
+417    val_417
+417    val_417
+417    val_417
+419    val_419
+421    val_421
+427    val_427
 430    val_430
 430    val_430
 430    val_430
 432    val_432
+435    val_435
+437    val_437
+443    val_443
 444    val_444
 446    val_446
+449    val_449
 452    val_452
+453    val_453
 454    val_454
 454    val_454
 454    val_454
 458    val_458
 458    val_458
+459    val_459
+459    val_459
+463    val_463
+463    val_463
 466    val_466
 466    val_466
 466    val_466
+467    val_467
 472    val_472
 478    val_478
 478    val_478
+479    val_479
 480    val_480
 480    val_480
 480    val_480
 482    val_482
+483    val_483
 484    val_484
+485    val_485
 490    val_490
+491    val_491
+495    val_495
+497    val_497
 498    val_498
 498    val_498
 498    val_498
@@ -2544,7 +3119,7 @@ STAGE PLANS:
       Path -> Partition:
 #### A masked pattern was here ####
           Partition
-            base file name: 000001_0
+            base file name: srcbucket2
             input format: org.apache.hadoop.mapred.TextInputFormat
             output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
             properties:
@@ -2593,7 +3168,7 @@ STAGE PLANS:
               name: default.srcbucket2
             name: default.srcbucket2
       Truncated Path -> Alias:
-        /srcbucket2/000001_0 [s]
+        /srcbucket2 [s]
       Needs Tagging: false
       Reduce Operator Tree:
         Select Operator
@@ -2639,38 +3214,132 @@ ORDER BY key, value
 POSTHOOK: type: QUERY
 POSTHOOK: Input: default@srcbucket2
 #### A masked pattern was here ####
+0      val_0
+0      val_0
+0      val_0
+4      val_4
+8      val_8
 9      val_9
+11     val_11
+18     val_18
+18     val_18
+26     val_26
+26     val_26
+34     val_34
 37     val_37
 37     val_37
+66     val_66
+72     val_72
+72     val_72
+74     val_74
+78     val_78
+82     val_82
+92     val_92
+100    val_100
+100    val_100
+103    val_103
+103    val_103
+118    val_118
+118    val_118
+120    val_120
+120    val_120
+128    val_128
+128    val_128
+128    val_128
+131    val_131
+136    val_136
+143    val_143
+150    val_150
+152    val_152
+152    val_152
+155    val_155
+160    val_160
+174    val_174
+174    val_174
+175    val_175
+175    val_175
+176    val_176
+176    val_176
+179    val_179
+179    val_179
+183    val_183
+186    val_186
 189    val_189
+194    val_194
+200    val_200
+200    val_200
 205    val_205
 205    val_205
 217    val_217
 217    val_217
+218    val_218
+222    val_222
+223    val_223
+223    val_223
+228    val_228
+230    val_230
+230    val_230
+230    val_230
+230    val_230
+230    val_230
+235    val_235
+247    val_247
+262    val_262
+275    val_275
 277    val_277
 277    val_277
 277    val_277
 277    val_277
+280    val_280
+280    val_280
+282    val_282
+282    val_282
 285    val_285
+288    val_288
+288    val_288
+296    val_296
+298    val_298
+298    val_298
+298    val_298
+302    val_302
 305    val_305
+306    val_306
 309    val_309
 309    val_309
 321    val_321
 321    val_321
+323    val_323
 333    val_333
 333    val_333
 345    val_345
+366    val_366
+374    val_374
+375    val_375
 389    val_389
+400    val_400
 413    val_413
 413    val_413
+424    val_424
+424    val_424
+438    val_438
+438    val_438
+438    val_438
+439    val_439
+439    val_439
+455    val_455
 457    val_457
+460    val_460
+462    val_462
+462    val_462
 469    val_469
 469    val_469
 469    val_469
 469    val_469
 469    val_469
 477    val_477
+487    val_487
 493    val_493
+496    val_496
 PREHOOK: query: CREATE TABLE empty_bucket (key int, value string) CLUSTERED BY 
(key) INTO 2 BUCKETS STORED AS TEXTFILE
 PREHOOK: type: CREATETABLE
 PREHOOK: Output: database:default
@@ -2714,6 +3383,61 @@ STAGE PLANS:
                   tag: -1
                   auto parallelism: false
       Execution mode: vectorized
+      Path -> Alias:
+#### A masked pattern was here ####
+      Path -> Partition:
+#### A masked pattern was here ####
+          Partition
+            base file name: empty_bucket
+            input format: org.apache.hadoop.mapred.TextInputFormat
+            output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+            properties:
+              COLUMN_STATS_ACCURATE 
{"BASIC_STATS":"true","COLUMN_STATS":{"key":"true","value":"true"}}
+              bucket_count 2
+              bucket_field_name key
+              bucketing_version 2
+              column.name.delimiter ,
+              columns key,value
+              columns.comments 
+              columns.types int:string
+#### A masked pattern was here ####
+              name default.empty_bucket
+              numFiles 0
+              numRows 0
+              rawDataSize 0
+              serialization.ddl struct empty_bucket { i32 key, string value}
+              serialization.format 1
+              serialization.lib 
org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+              totalSize 0
+#### A masked pattern was here ####
+            serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+          
+              input format: org.apache.hadoop.mapred.TextInputFormat
+              output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+              properties:
+                COLUMN_STATS_ACCURATE 
{"BASIC_STATS":"true","COLUMN_STATS":{"key":"true","value":"true"}}
+                bucket_count 2
+                bucket_field_name key
+                bucketing_version 2
+                column.name.delimiter ,
+                columns key,value
+                columns.comments 
+                columns.types int:string
+#### A masked pattern was here ####
+                name default.empty_bucket
+                numFiles 0
+                numRows 0
+                rawDataSize 0
+                serialization.ddl struct empty_bucket { i32 key, string value}
+                serialization.format 1
+                serialization.lib 
org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+                totalSize 0
+#### A masked pattern was here ####
+              serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+              name: default.empty_bucket
+            name: default.empty_bucket
+      Truncated Path -> Alias:
+        /empty_bucket [s]
       Needs Tagging: false
       Reduce Operator Tree:
         Select Operator

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/sample7.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/sample7.q.out 
b/ql/src/test/results/clientpositive/sample7.q.out
index 8763041..8df78fe 100644
--- a/ql/src/test/results/clientpositive/sample7.q.out
+++ b/ql/src/test/results/clientpositive/sample7.q.out
@@ -96,7 +96,7 @@ STAGE PLANS:
       Path -> Partition:
 #### A masked pattern was here ####
           Partition
-            base file name: 000000_0
+            base file name: srcbucket
             input format: org.apache.hadoop.mapred.TextInputFormat
             output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
             properties:
@@ -145,7 +145,7 @@ STAGE PLANS:
               name: default.srcbucket
             name: default.srcbucket
       Truncated Path -> Alias:
-        /srcbucket/000000_0 [s]
+        /srcbucket [s]
       Needs Tagging: false
       Reduce Operator Tree:
         Group By Operator
@@ -434,33 +434,86 @@ order by key, value
 POSTHOOK: type: QUERY
 POSTHOOK: Input: default@dest1_n160
 #### A masked pattern was here ####
+105    val_105
+105    val_106
+105    val_106
 110    val_111
+113    val_113
+113    val_113
 116    val_116
 116    val_117
+117    val_118
+117    val_118
+119    val_119
+119    val_119
+119    val_119
+119    val_120
+119    val_120
+119    val_120
+121    val_122
+121    val_122
+123    val_124
+123    val_124
 126    val_126
 126    val_127
 126    val_127
 134    val_134
 134    val_134
 134    val_135
+137    val_137
+137    val_137
+137    val_138
+153    val_153
+153    val_154
+153    val_154
 156    val_156
 156    val_157
 156    val_157
+157    val_157
+157    val_158
+157    val_158
 158    val_158
+163    val_163
+169    val_169
+169    val_169
+169    val_169
+169    val_169
+177    val_177
+177    val_178
+177    val_178
 178    val_178
 178    val_179
 178    val_179
 184    val_185
+187    val_187
+187    val_187
+187    val_187
+195    val_195
+195    val_195
+197    val_197
+197    val_197
+197    val_198
 206    val_207
 206    val_207
 206    val_207
 208    val_208
 208    val_208
 208    val_208
+221    val_221
+221    val_221
+229    val_229
+229    val_229
+237    val_237
+237    val_237
+243    val_244
+243    val_244
 244    val_244
 244    val_245
 244    val_245
 244    val_245
+249    val_249
+249    val_250
+249    val_250
 252    val_252
 252    val_253
 254    val_255
@@ -468,27 +521,40 @@ POSTHOOK: Input: default@dest1_n160
 256    val_256
 256    val_257
 266    val_266
+271    val_272
 272    val_272
 272    val_272
 272    val_273
 286    val_286
 286    val_287
+289    val_289
+289    val_290
 292    val_292
 292    val_293
 292    val_293
 304    val_305
+307    val_307
+307    val_307
 308    val_308
 308    val_309
 308    val_309
+315    val_315
 316    val_316
 316    val_316
 316    val_316
+317    val_317
+317    val_317
+317    val_318
 326    val_327
+327    val_327
+327    val_327
+327    val_327
 334    val_335
 336    val_336
 336    val_337
 338    val_338
 338    val_339
+339    val_339
 342    val_342
 342    val_342
 342    val_343
@@ -501,21 +567,45 @@ POSTHOOK: Input: default@dest1_n160
 348    val_348
 348    val_348
 348    val_349
+349    val_350
+349    val_350
+349    val_350
+349    val_350
 352    val_353
 352    val_353
+353    val_353
+353    val_353
+353    val_354
+355    val_356
+355    val_356
 360    val_360
 360    val_361
 362    val_362
 364    val_364
 364    val_365
+369    val_369
+369    val_369
+369    val_369
+369    val_370
+371    val_372
+371    val_372
+371    val_372
+371    val_372
+377    val_377
 378    val_378
 378    val_379
+391    val_392
+391    val_392
 392    val_392
 392    val_393
 392    val_393
 396    val_396
 396    val_396
 396    val_396
+399    val_399
+399    val_399
+399    val_400
+399    val_400
 402    val_402
 402    val_403
 402    val_403
@@ -525,15 +615,31 @@ POSTHOOK: Input: default@dest1_n160
 404    val_405
 404    val_405
 404    val_405
+407    val_407
+407    val_408
+407    val_408
+407    val_408
 408    val_409
 408    val_409
 410    val_411
+417    val_417
+417    val_417
+417    val_417
+419    val_419
+423    val_424
 426    val_427
+427    val_427
+427    val_428
+427    val_428
 440    val_441
 440    val_441
+449    val_449
 452    val_452
 458    val_458
 458    val_458
+463    val_463
+463    val_463
+463    val_464
 466    val_466
 466    val_466
 466    val_466
@@ -544,7 +650,11 @@ POSTHOOK: Input: default@dest1_n160
 478    val_478
 478    val_479
 478    val_479
+479    val_479
 482    val_482
 482    val_483
 484    val_484
 484    val_485
+497    val_497
+497    val_498
+497    val_498

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/sample9.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/sample9.q.out 
b/ql/src/test/results/clientpositive/sample9.q.out
index 0de49a6..4819dc1 100644
--- a/ql/src/test/results/clientpositive/sample9.q.out
+++ b/ql/src/test/results/clientpositive/sample9.q.out
@@ -55,7 +55,7 @@ STAGE PLANS:
       Path -> Partition:
 #### A masked pattern was here ####
           Partition
-            base file name: 000000_0
+            base file name: srcbucket
             input format: org.apache.hadoop.mapred.TextInputFormat
             output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
             properties:
@@ -104,7 +104,7 @@ STAGE PLANS:
               name: default.srcbucket
             name: default.srcbucket
       Truncated Path -> Alias:
-        /srcbucket/000000_0 [s:a]
+        /srcbucket [s:a]
 
   Stage: Stage-0
     Fetch Operator
@@ -126,75 +126,185 @@ POSTHOOK: Input: default@srcbucket
 #### A masked pattern was here ####
 2      val_2
 2      val_3
+3      val_4
 6      val_7
 6      val_7
 10     val_10
 10     val_11
+17     val_17
+19     val_19
+19     val_20
 20     val_20
 20     val_21
 20     val_21
+21     val_22
+21     val_22
+21     val_22
+21     val_22
+27     val_27
+29     val_30
+29     val_30
 30     val_30
 30     val_31
+31     val_32
 40     val_41
 40     val_41
+41     val_41
+43     val_43
 46     val_47
 48     val_49
 48     val_49
+51     val_51
+51     val_51
+51     val_52
 54     val_54
+57     val_57
 58     val_58
 58     val_58
 58     val_59
 58     val_59
+59     val_60
 60     val_61
+61     val_62
 64     val_64
+65     val_65
+65     val_66
+65     val_66
+67     val_67
+67     val_67
 68     val_69
+69     val_69
+69     val_70
 70     val_70
 70     val_70
 70     val_70
 70     val_71
+77     val_77
+77     val_78
+77     val_78
 80     val_80
 80     val_81
+83     val_83
+83     val_83
 84     val_84
 84     val_84
+85     val_85
+85     val_86
 86     val_86
 86     val_87
+89     val_90
+89     val_90
+89     val_90
 90     val_90
 90     val_90
 90     val_90
+91     val_92
+93     val_94
+93     val_94
+93     val_94
 96     val_96
+97     val_97
+97     val_97
+97     val_98
+97     val_98
 98     val_98
 98     val_98
+99     val_100
+101    val_102
+105    val_105
+105    val_106
+105    val_106
 106    val_107
 110    val_111
+113    val_113
+113    val_113
 116    val_116
 116    val_117
+117    val_118
+117    val_118
+119    val_119
+119    val_119
+119    val_119
+119    val_120
+119    val_120
+119    val_120
+121    val_122
+121    val_122
+123    val_124
+123    val_124
 126    val_126
 126    val_127
 126    val_127
 132    val_133
 132    val_133
+133    val_133
+133    val_134
 134    val_134
 134    val_134
 134    val_135
+135    val_136
+135    val_136
+135    val_136
+137    val_137
+137    val_137
+137    val_138
 140    val_141
 146    val_146
 146    val_146
+149    val_149
+149    val_149
+149    val_150
+153    val_153
+153    val_154
+153    val_154
 156    val_156
 156    val_157
 156    val_157
+157    val_157
+157    val_158
+157    val_158
 158    val_158
 162    val_162
 162    val_163
+163    val_163
 164    val_164
 164    val_164
 164    val_165
 164    val_165
+165    val_165
+165    val_165
+165    val_166
+169    val_169
+169    val_169
+169    val_169
+169    val_169
+177    val_177
+177    val_178
+177    val_178
 178    val_178
 178    val_179
 178    val_179
+181    val_181
 182    val_183
 184    val_185
+185    val_186
+187    val_187
+187    val_187
+187    val_187
 190    val_190
+191    val_191
+191    val_191
+191    val_192
+195    val_195
+195    val_195
+197    val_197
+197    val_197
+197    val_198
+199    val_199
+199    val_199
+199    val_199
+199    val_200
+201    val_201
 202    val_202
 206    val_207
 206    val_207
@@ -204,34 +314,57 @@ POSTHOOK: Input: default@srcbucket
 208    val_208
 212    val_213
 214    val_214
+215    val_216
 216    val_216
 216    val_216
 216    val_217
+221    val_221
+221    val_221
 226    val_226
 226    val_227
 226    val_227
 226    val_227
 226    val_227
+229    val_229
+229    val_229
+231    val_232
+233    val_233
+233    val_233
+237    val_237
+237    val_237
 238    val_238
 238    val_238
 238    val_239
+239    val_239
+239    val_239
+239    val_240
+239    val_240
 240    val_241
+243    val_244
+243    val_244
 244    val_244
 244    val_245
 244    val_245
 244    val_245
 248    val_248
 248    val_249
+249    val_249
+249    val_250
+249    val_250
 252    val_252
 252    val_253
 254    val_255
+255    val_255
+255    val_255
 256    val_256
 256    val_256
 256    val_257
 260    val_260
 260    val_261
 260    val_261
+261    val_262
 266    val_266
+271    val_272
 272    val_272
 272    val_272
 272    val_273
@@ -241,10 +374,20 @@ POSTHOOK: Input: default@srcbucket
 284    val_285
 286    val_286
 286    val_287
+287    val_287
+287    val_288
+287    val_288
+289    val_289
+289    val_290
+291    val_291
+291    val_292
+291    val_292
 292    val_292
 292    val_293
 292    val_293
 304    val_305
+307    val_307
+307    val_307
 308    val_308
 308    val_309
 308    val_309
@@ -252,37 +395,81 @@ POSTHOOK: Input: default@srcbucket
 310    val_311
 310    val_311
 310    val_311
+311    val_311
+311    val_311
+311    val_311
+313    val_314
+315    val_315
 316    val_316
 316    val_316
 316    val_316
+317    val_317
+317    val_317
+317    val_318
 324    val_325
+325    val_325
+325    val_325
 326    val_327
+327    val_327
+327    val_327
+327    val_327
 332    val_332
 334    val_335
 336    val_336
 336    val_337
+337    val_338
 338    val_338
 338    val_339
+339    val_339
+341    val_341
+341    val_342
+341    val_342
+341    val_342
 342    val_342
 342    val_342
 342    val_343
+343    val_344
 344    val_344
 344    val_344
 344    val_345
+347    val_348
+347    val_348
 348    val_348
 348    val_348
 348    val_348
 348    val_348
 348    val_348
 348    val_349
+349    val_350
+349    val_350
+349    val_350
+349    val_350
+351    val_351
+351    val_352
+351    val_352
 352    val_353
 352    val_353
+353    val_353
+353    val_353
+353    val_354
+355    val_356
+355    val_356
 360    val_360
 360    val_361
 362    val_362
 364    val_364
 364    val_365
+365    val_365
 368    val_368
+369    val_369
+369    val_369
+369    val_369
+369    val_370
+371    val_372
+371    val_372
+371    val_372
+371    val_372
+377    val_377
 378    val_378
 378    val_379
 384    val_384
@@ -295,13 +482,24 @@ POSTHOOK: Input: default@srcbucket
 386    val_387
 386    val_387
 388    val_389
+391    val_392
+391    val_392
 392    val_392
 392    val_393
 392    val_393
+393    val_393
+393    val_394
+393    val_394
 394    val_394
 396    val_396
 396    val_396
 396    val_396
+397    val_397
+397    val_397
+399    val_399
+399    val_399
+399    val_400
+399    val_400
 402    val_402
 402    val_403
 402    val_403
@@ -311,13 +509,36 @@ POSTHOOK: Input: default@srcbucket
 404    val_405
 404    val_405
 404    val_405
+407    val_407
+407    val_408
+407    val_408
+407    val_408
 408    val_409
 408    val_409
+409    val_409
+409    val_409
+409    val_409
+409    val_410
+409    val_410
 410    val_411
+411    val_411
+411    val_412
 414    val_414
 414    val_414
 414    val_415
+417    val_417
+417    val_417
+417    val_417
+419    val_419
+421    val_421
+421    val_422
+421    val_422
+423    val_424
+425    val_426
 426    val_427
+427    val_427
+427    val_428
+427    val_428
 428    val_429
 430    val_430
 430    val_430
@@ -325,13 +546,24 @@ POSTHOOK: Input: default@srcbucket
 430    val_431
 432    val_432
 432    val_433
+435    val_435
+435    val_436
+437    val_437
+437    val_438
 440    val_441
 440    val_441
+443    val_443
+443    val_444
+443    val_444
+443    val_444
 444    val_444
 446    val_446
 446    val_447
 446    val_447
+449    val_449
 452    val_452
+453    val_453
+453    val_454
 454    val_454
 454    val_454
 454    val_454
@@ -339,10 +571,19 @@ POSTHOOK: Input: default@srcbucket
 454    val_455
 458    val_458
 458    val_458
+459    val_459
+459    val_459
+459    val_460
+463    val_463
+463    val_463
+463    val_464
 466    val_466
 466    val_466
 466    val_466
+467    val_467
+467    val_468
 472    val_472
+473    val_474
 474    val_475
 474    val_475
 476    val_477
@@ -351,6 +592,7 @@ POSTHOOK: Input: default@srcbucket
 478    val_478
 478    val_479
 478    val_479
+479    val_479
 480    val_480
 480    val_480
 480    val_480
@@ -358,11 +600,23 @@ POSTHOOK: Input: default@srcbucket
 480    val_481
 482    val_482
 482    val_483
+483    val_483
 484    val_484
 484    val_485
+485    val_485
+485    val_486
+485    val_486
 488    val_489
 490    val_490
 490    val_491
+491    val_491
+491    val_492
+491    val_492
+495    val_495
+495    val_496
+497    val_497
+497    val_498
+497    val_498
 498    val_498
 498    val_498
 498    val_498

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/smb_mapjoin_11.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/smb_mapjoin_11.q.out 
b/ql/src/test/results/clientpositive/smb_mapjoin_11.q.out
index d35a207..b2de1d0 100644
--- a/ql/src/test/results/clientpositive/smb_mapjoin_11.q.out
+++ b/ql/src/test/results/clientpositive/smb_mapjoin_11.q.out
@@ -1931,7 +1931,7 @@ STAGE PLANS:
       Path -> Partition:
 #### A masked pattern was here ####
           Partition
-            base file name: 000001_0
+            base file name: ds=1
             input format: org.apache.hadoop.mapred.TextInputFormat
             output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
             partition values:
@@ -1981,7 +1981,7 @@ STAGE PLANS:
               name: default.test_table1_n1
             name: default.test_table1_n1
       Truncated Path -> Alias:
-        /test_table1_n1/ds=1/000001_0 [test_table1_n1]
+        /test_table1_n1/ds=1 [test_table1_n1]
 
   Stage: Stage-0
     Fetch Operator
@@ -2042,7 +2042,7 @@ STAGE PLANS:
       Path -> Partition:
 #### A masked pattern was here ####
           Partition
-            base file name: 000001_0
+            base file name: ds=1
             input format: org.apache.hadoop.mapred.TextInputFormat
             output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
             partition values:
@@ -2091,7 +2091,7 @@ STAGE PLANS:
               name: default.test_table3_n1
             name: default.test_table3_n1
       Truncated Path -> Alias:
-        /test_table3_n1/ds=1/000001_0 [test_table3_n1]
+        /test_table3_n1/ds=1 [test_table3_n1]
 
   Stage: Stage-0
     Fetch Operator

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/spark/infer_bucket_sort_bucketed_table.q.out
----------------------------------------------------------------------
diff --git 
a/ql/src/test/results/clientpositive/spark/infer_bucket_sort_bucketed_table.q.out
 
b/ql/src/test/results/clientpositive/spark/infer_bucket_sort_bucketed_table.q.out
index 8fab7ec..7a2407c 100644
--- 
a/ql/src/test/results/clientpositive/spark/infer_bucket_sort_bucketed_table.q.out
+++ 
b/ql/src/test/results/clientpositive/spark/infer_bucket_sort_bucketed_table.q.out
@@ -67,7 +67,7 @@ POSTHOOK: type: QUERY
 POSTHOOK: Input: default@test_table_bucketed
 POSTHOOK: Input: default@test_table_bucketed@part=1
 POSTHOOK: Output: hdfs://### HDFS PATH ###
-0
+177
 PREHOOK: query: SELECT COUNT(*) FROM test_table_bucketed TABLESAMPLE (BUCKET 2 
OUT OF 3) WHERE part = '1'
 PREHOOK: type: QUERY
 PREHOOK: Input: default@test_table_bucketed

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/spark/sample10.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/spark/sample10.q.out 
b/ql/src/test/results/clientpositive/spark/sample10.q.out
index ac28779..6f1fe95 100644
--- a/ql/src/test/results/clientpositive/spark/sample10.q.out
+++ b/ql/src/test/results/clientpositive/spark/sample10.q.out
@@ -87,7 +87,7 @@ STAGE PLANS:
             Path -> Partition:
 #### A masked pattern was here ####
                 Partition
-                  base file name: 000001_0
+                  base file name: hr=11
                   input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat
                   output format: 
org.apache.hadoop.hive.ql.io.RCFileOutputFormat
                   partition values:
@@ -138,7 +138,7 @@ STAGE PLANS:
                   name: default.srcpartbucket
 #### A masked pattern was here ####
                 Partition
-                  base file name: 000001_0
+                  base file name: hr=12
                   input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat
                   output format: 
org.apache.hadoop.hive.ql.io.RCFileOutputFormat
                   partition values:
@@ -189,7 +189,7 @@ STAGE PLANS:
                   name: default.srcpartbucket
 #### A masked pattern was here ####
                 Partition
-                  base file name: 000001_0
+                  base file name: hr=11
                   input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat
                   output format: 
org.apache.hadoop.hive.ql.io.RCFileOutputFormat
                   partition values:
@@ -240,7 +240,7 @@ STAGE PLANS:
                   name: default.srcpartbucket
 #### A masked pattern was here ####
                 Partition
-                  base file name: 000001_0
+                  base file name: hr=12
                   input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat
                   output format: 
org.apache.hadoop.hive.ql.io.RCFileOutputFormat
                   partition values:
@@ -290,10 +290,10 @@ STAGE PLANS:
                     name: default.srcpartbucket
                   name: default.srcpartbucket
             Truncated Path -> Alias:
-              /srcpartbucket/ds=2008-04-08/hr=11/000001_0 [srcpartbucket]
-              /srcpartbucket/ds=2008-04-08/hr=12/000001_0 [srcpartbucket]
-              /srcpartbucket/ds=2008-04-09/hr=11/000001_0 [srcpartbucket]
-              /srcpartbucket/ds=2008-04-09/hr=12/000001_0 [srcpartbucket]
+              /srcpartbucket/ds=2008-04-08/hr=11 [srcpartbucket]
+              /srcpartbucket/ds=2008-04-08/hr=12 [srcpartbucket]
+              /srcpartbucket/ds=2008-04-09/hr=11 [srcpartbucket]
+              /srcpartbucket/ds=2008-04-09/hr=12 [srcpartbucket]
         Reducer 2 
             Execution mode: vectorized
             Needs Tagging: false

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/spark/sample2.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/spark/sample2.q.out 
b/ql/src/test/results/clientpositive/spark/sample2.q.out
index 8b73fdf..185253a 100644
--- a/ql/src/test/results/clientpositive/spark/sample2.q.out
+++ b/ql/src/test/results/clientpositive/spark/sample2.q.out
@@ -78,7 +78,7 @@ STAGE PLANS:
             Path -> Partition:
 #### A masked pattern was here ####
                 Partition
-                  base file name: 000000_0
+                  base file name: srcbucket
                   input format: org.apache.hadoop.mapred.TextInputFormat
                   output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
                   properties:
@@ -127,7 +127,7 @@ STAGE PLANS:
                     name: default.srcbucket
                   name: default.srcbucket
             Truncated Path -> Alias:
-              /srcbucket/000000_0 [s]
+              /srcbucket [s]
 
   Stage: Stage-0
     Move Operator

http://git-wip-us.apache.org/repos/asf/hive/blob/3f904ff7/ql/src/test/results/clientpositive/spark/sample4.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/spark/sample4.q.out 
b/ql/src/test/results/clientpositive/spark/sample4.q.out
index 3269b01..86fb0f0 100644
--- a/ql/src/test/results/clientpositive/spark/sample4.q.out
+++ b/ql/src/test/results/clientpositive/spark/sample4.q.out
@@ -78,7 +78,7 @@ STAGE PLANS:
             Path -> Partition:
 #### A masked pattern was here ####
                 Partition
-                  base file name: 000000_0
+                  base file name: srcbucket
                   input format: org.apache.hadoop.mapred.TextInputFormat
                   output format: 
org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
                   properties:
@@ -127,7 +127,7 @@ STAGE PLANS:
                     name: default.srcbucket
                   name: default.srcbucket
             Truncated Path -> Alias:
-              /srcbucket/000000_0 [s]
+              /srcbucket [s]
 
   Stage: Stage-0
     Move Operator

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