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Posted to issues@drill.apache.org by "Chun Chang (JIRA)" <ji...@apache.org> on 2015/02/04 23:19:34 UTC

[jira] [Commented] (DRILL-2163) Projecting nested types past join returns invalid result

    [ https://issues.apache.org/jira/browse/DRILL-2163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14306094#comment-14306094 ] 

Chun Chang commented on DRILL-2163:
-----------------------------------

Looks like both left and right side are all empty for complex types:

{code}
0: jdbc:drill:schema=dfs.drillTestDirComplexJ> select a.id, a.soa, b.sfa[0], b.soa[1] from `complex.json` a inner join `complex.json` b on a.sia[0]=b.sia[0] order by a.id limit 20;
+------------+------------+------------+------------+
|     id     |    soa     |   EXPR$2   |   EXPR$3   |
+------------+------------+------------+------------+
| 1          | [{},{},{},{}] | 0.0        | {}         |
| 2          | [{},{},{},{}] | 0.0        | {}         |
| 3          | [{},{},{},{}] | 0.0        | {}         |
| 4          | [{},{},{},{}] | 0.0        | {}         |
| 5          | [{},{},{},{}] | 0.0        | {}         |
| 6          | [{},{},{},{}] | 0.0        | {}         |
| 7          | [{},{},{},{}] | 0.0        | {}         |
| 8          | [{},{},{},{}] | 0.0        | {}         |
| 9          | [{},{},{},{}] | 0.0        | {}         |
| 10         | [{},{},{},{}] | 0.0        | {}         |
| 11         | [{},{},{},{}] | 0.0        | {}         |
| 12         | [{},{},{},{}] | 0.0        | {}         |
| 13         | [{},{},{},{}] | 0.0        | {}         |
| 14         | [{},{},{},{}] | 0.0        | {}         |
| 15         | [{},{},{},{}] | 0.0        | {}         |
| 16         | [{},{},{},{}] | 0.0        | {}         |
| 17         | [{},{},{},{}] | 0.0        | {}         |
| 18         | [{},{},{},{}] | 0.0        | {}         |
| 19         | [{},{},{},{}] | 0.0        | {}         |
| 20         | [{},{},{},{}] | 0.0        | {}         |
+------------+------------+------------+------------+
20 rows selected (34.464 seconds)
{code}

> Projecting nested types past join returns invalid result
> --------------------------------------------------------
>
>                 Key: DRILL-2163
>                 URL: https://issues.apache.org/jira/browse/DRILL-2163
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Hanifi Gunes
>            Assignee: Hanifi Gunes
>            Priority: Critical
>
> Take the following data files and query:
> {code:title=a.json}
> {
>   "uid": 1,
>   "events" : [
>     { "evnt_id":"e1"}
>   ]
> }
> {code}
> {code:title=b.json}
> {
>   "uid": 1,
>   "transactions" : [
>     { "trans_id":"t1"}
>   ]
> }
> {code}
> {code}
> select t1.events, t2.transactions from dfs.`local`.`2122/a.json` t1, dfs.`local`.`2122/b.json` t2 where t1.uid = t2.uid
> {code}
> The projection of a nested value coming out of right side of join, {{transactions}} as of b6a3878, reports empty result. 



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