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Posted to issues@drill.apache.org by "Jacques Nadeau (JIRA)" <ji...@apache.org> on 2014/07/26 01:38:38 UTC
[jira] [Updated] (DRILL-1187) Select * from join does not return
required columns
[ https://issues.apache.org/jira/browse/DRILL-1187?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jacques Nadeau updated DRILL-1187:
----------------------------------
Assignee: Jinfeng Ni
> Select * from join does not return required columns
> ---------------------------------------------------
>
> Key: DRILL-1187
> URL: https://issues.apache.org/jira/browse/DRILL-1187
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Jinfeng Ni
> Assignee: Jinfeng Ni
> Fix For: 0.4.0
>
>
> 1. Select * from join does not return required columns
> select * from cp.`tpch/nation.parquet` n, cp.`tpch/region.parquet` r where n.n_regionkey = r.r_regionkey limit 2;
> +------------+-------------+-------------+------------+-------------+------------+
> | *0 | r_regionkey | N_NATIONKEY | N_NAME | N_REGIONKEY | N_COMMENT |
> +------------+-------------+-------------+------------+-------------+------------+
> | null | 0 | 0 | [B@6c7e90b9 | 0 | [B@694f9954 |
> | null | 1 | 1 | [B@68db8fcf | 1 | [B@26be94d1 |
> +------------+-------------+-------------+------------+-------------+——————+
> In this case, RHS only has the join key column appear in the result. Also, it has *0 column in the output.
> 2. Select T1.* from join returns unwanted columns
> select n.* from cp.`tpch/nation.parquet` n, cp.`tpch/region.parquet` r where n.n_regionkey = r.r_regionkey limit 2;
> +-------------+-------------+------------+-------------+------------+
> | R_REGIONKEY | N_NATIONKEY | N_NAME | N_REGIONKEY | N_COMMENT |
> +-------------+-------------+------------+-------------+------------+
> | 0 | 0 | [B@3328c286 | 0 | [B@38fb05a7 |
> | 1 | 1 | [B@6830342a | 1 | [B@34b0e6d6 |
> +-------------+-------------+------------+-------------+——————+
> select r.* from cp.`tpch/nation.parquet` n, cp.`tpch/region.parquet` r where n.n_regionkey = r.r_regionkey limit 2;
> +-------------+------------+------------+-------------+
> | R_REGIONKEY | R_NAME | R_COMMENT | N_REGIONKEY |
> +-------------+------------+------------+-------------+
> | 0 | [B@997b44c | [B@46bdee7f | 0 |
> | 1 | [B@5f74f821 | [B@784e6f7c | 1 |
> +-------------+------------+------------+——————+
>
> In this case, the join key column from the other table appears in the output, which is not correct.
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