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Posted to issues@drill.apache.org by "Chun Chang (JIRA)" <ji...@apache.org> on 2015/03/11 02:21:38 UTC
[jira] [Created] (DRILL-2425) Wrong results when identifier change
cases within the same data file
Chun Chang created DRILL-2425:
---------------------------------
Summary: Wrong results when identifier change cases within the same data file
Key: DRILL-2425
URL: https://issues.apache.org/jira/browse/DRILL-2425
Project: Apache Drill
Issue Type: Bug
Components: Execution - Data Types
Affects Versions: 0.8.0
Reporter: Chun Chang
Assignee: Daniel Barclay (Drill)
Priority: Critical
#Fri Mar 06 16:51:10 EST 2015
git.commit.id.abbrev=fb293ba
I have the following JSON file that one of the identifier change cases:
{code}
[root@qa-node120 md-83]# hadoop fs -cat /drill/testdata/complex_type/json/schema/a.json
{"SOURCE": "ebm","msAddressIpv6Array": null}
{"SOURCE": "ebm","msAddressIpv6Array": {"msAddressIpv6_1":"99.111.222.0", "msAddressIpv6_2":"88.222.333.0"}}
{"SOURCE": "ebm","msAddressIpv6Array": {"msAddressIpv6_1":"99.111.222.1", "msAddressIpv6_2":"88.222.333.1"}}
{"SOURCE": "ebm","msAddressIpv6Array": {"msaddressipv6_1":"99.111.222.2", "msAddressIpv6_2":"88.222.333.2"}}
{code}
Query this file through drill gives wrong results:
{code}
0: jdbc:drill:schema=dfs.drillTestDirComplexJ> select t.msAddressIpv6Array.msAddressIpv6_1 as msAddressIpv6_1 from `schema/a.json` t;
+-----------------+
| msAddressIpv6_1 |
+-----------------+
| null |
| null |
| null |
| 99.111.222.2 |
+-----------------+
{code}
plan:
{code}
0: jdbc:drill:schema=dfs.drillTestDirComplexJ> explain plan for select t.msAddressIpv6Array.msAddressIpv6_1 as msAddressIpv6_1 from `schema/a.json` t;
+------------+------------+
| text | json |
+------------+------------+
| 00-00 Screen
00-01 Project(msAddressIpv6_1=[ITEM($0, 'msAddressIpv6_1')])
00-02 Scan(groupscan=[EasyGroupScan [selectionRoot=/drill/testdata/complex_type/json/schema/a.json, numFiles=1, columns=[`msAddressIpv6Array`.`msAddressIpv6_1`], files=[maprfs:/drill/testdata/complex_type/json/schema/a.json]]])
{code}
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