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Posted to issues@drill.apache.org by "Steven Phillips (JIRA)" <ji...@apache.org> on 2014/09/24 03:39:34 UTC
[jira] [Updated] (DRILL-1447) Hash join implicit cast fails
[ https://issues.apache.org/jira/browse/DRILL-1447?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steven Phillips updated DRILL-1447:
-----------------------------------
Attachment: nation_int.parquet
nation_bigint.parquet
> Hash join implicit cast fails
> -----------------------------
>
> Key: DRILL-1447
> URL: https://issues.apache.org/jira/browse/DRILL-1447
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Steven Phillips
> Attachments: nation_bigint.parquet, nation_int.parquet
>
>
> Join on two columns, where one is int, and the other is bigint, does not return any results when using hash join. Disabling hashjoin gives the expected result.
> In this example, nation_int and nation_big int each contain a single column, but one has int, and the other bigint:
> 0: jdbc:drill:> select i.n_nationkey as a, b.n_nationkey as b from nation_int i, nation_bigint b where i.n_nationkey = b.n_nationkey limit 5;
> +------------+------------+
> | a | b |
> +------------+------------+
> +------------+------------+
> No rows selected (0.891 seconds)
> 0: jdbc:drill:> alter session set `planner.enable_hashjoin` = false;
> +------------+------------+
> | ok | summary |
> +------------+------------+
> | true | planner.enable_hashjoin updated. |
> +------------+------------+
> 1 row selected (0.04 seconds)
> 0: jdbc:drill:> select i.n_nationkey as a, b.n_nationkey as b from nation_int i, nation_bigint b where i.n_nationkey = b.n_nationkey limit 5;
> +------------+------------+
> | a | b |
> +------------+------------+
> | 0 | 0 |
> | 1 | 1 |
> | 2 | 2 |
> | 3 | 3 |
> | 4 | 4 |
> +------------+------------+
> 5 rows selected (1.275 seconds)
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