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From "Khurram Faraaz (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-3886) Range query over HBase table from Drill returns no results
Date Fri, 02 Oct 2015 01:00:30 GMT
Khurram Faraaz created DRILL-3886:
-------------------------------------

             Summary: Range query over HBase table from Drill returns no results
                 Key: DRILL-3886
                 URL: https://issues.apache.org/jira/browse/DRILL-3886
             Project: Apache Drill
          Issue Type: Bug
          Components: Execution - Flow
    Affects Versions: 1.2.0
         Environment: 4 node cluster CentOS
            Reporter: Khurram Faraaz
            Assignee: Smidth Panchamia


Range query over HBase table from Drill returns no results. Note that the filter is pushed
down to the Scan, however query does not return any results. Drill master commit ID: b9afcf8f

case 1) without cast and without quotes around integer value

0: jdbc:drill:schema=dfs.tmp> explain plan for select convert_from(row_key,'INT_OBD') as
rk from int_Tbl WHERE convert_from(row_key,'INT_OBD') > -536870912 AND convert_from(row_key,'INT_OBD')
< 536870911;
+------+------+
| text | json |
+------+------+
| 00-00    Screen
00-01      Project(rk=[CONVERT_FROMINT_OBD($0)])
00-02        Scan(groupscan=[HBaseGroupScan [HBaseScanSpec=HBaseScanSpec [tableName=int_Tbl,
startRow=\xD4`\x00\x00\x00\x00, stopRow=\xD4\x9F\xFF\xFF\xFF, filter=FilterList AND (2/2):
[RowFilter (LESS, \xD4\x9F\xFF\xFF\xFF), RowFilter (GREATER, \xD4`\x00\x00\x00)]], columns=[`row_key`]]])

0: jdbc:drill:schema=dfs.tmp> select convert_from(row_key,'INT_OBD') as rk from int_Tbl
WHERE convert_from(row_key,'INT_OBD') > -536870912 AND convert_from(row_key,'INT_OBD')
< 536870911;
+--+
|  |
+--+
+--+
No rows selected (0.869 seconds)

-----------------------

case 2) with cast and without quotes around integer value

{code}
0: jdbc:drill:schema=dfs.tmp> select convert_from(row_key,'INT_OBD') as rk from int_Tbl
WHERE convert_from(row_key,'INT_OBD') > cast(-536870912 as int) AND convert_from(row_key,'INT_OBD')
< cast(536870911 as int);
+--+
|  |
+--+
+--+
No rows selected (0.905 seconds)

0: jdbc:drill:schema=dfs.tmp> explain plan for select convert_from(row_key,'INT_OBD') as
rk from int_Tbl WHERE convert_from(row_key,'INT_OBD') > cast(-536870912 as int) AND convert_from(row_key,'INT_OBD')
< cast(536870911 as int);
+------+------+
| text | json |
+------+------+
| 00-00    Screen
00-01      Project(rk=[CONVERT_FROMINT_OBD($0)])
00-02        Scan(groupscan=[HBaseGroupScan [HBaseScanSpec=HBaseScanSpec [tableName=int_Tbl,
startRow=\xD4`\x00\x00\x00\x00, stopRow=\xD4\x9F\xFF\xFF\xFF, filter=FilterList AND (2/2):
[RowFilter (LESS, \xD4\x9F\xFF\xFF\xFF), RowFilter (GREATER, \xD4`\x00\x00\x00)]], columns=[`row_key`]]])
{code}



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