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Posted to issues@drill.apache.org by "Robert Hou (JIRA)" <ji...@apache.org> on 2016/11/30 20:02:58 UTC
[jira] [Commented] (DRILL-5086) ClassCastException when filter
pushdown is used with a bigint or float column.
[ https://issues.apache.org/jira/browse/DRILL-5086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15709618#comment-15709618 ]
Robert Hou commented on DRILL-5086:
-----------------------------------
Casting does not help.
0: jdbc:drill:zk=10.10.100.186:5181/drill/rho> select count(*) from orders_parts_metadata where bigint_id < cast(10 as bigint);
Error: SYSTEM ERROR: ClassCastException
0: jdbc:drill:zk=10.10.100.186:5181/drill/rho> select count(*) from orders_parts_metadata where cast(bigint_id as int) < 10;
Error: SYSTEM ERROR: ClassCastException
> ClassCastException when filter pushdown is used with a bigint or float column.
> ------------------------------------------------------------------------------
>
> Key: DRILL-5086
> URL: https://issues.apache.org/jira/browse/DRILL-5086
> Project: Apache Drill
> Issue Type: Bug
> Components: Query Planning & Optimization
> Affects Versions: 1.9.0
> Reporter: Robert Hou
> Assignee: Aman Sinha
> Attachments: 0_0_1.parquet, 0_0_2.parquet, 0_0_3.parquet, 0_0_4.parquet, 0_0_5.parquet, drill.parquet_metadata
>
>
> This query results in a ClassCastException when filter pushdown is used. The bigint column is being compared with an integer value.
> 0: jdbc:drill:zk=10.10.100.186:5181/drill/rho> select count(\*) from orders_parts_metadata where bigint_id < 1100;
> Error: SYSTEM ERROR: ClassCastException: java.lang.Integer cannot be cast to java.lang.Long
> A similar problem occurs when a float column is being compared with a double value.
> 0: jdbc:drill:zk=10.10.100.186:5181/drill/rho> select count(\*) from orders_parts_metadata where float_id < 1100.0;
> Error: SYSTEM ERROR: ClassCastException
> Also when a timestamp column is being compared with a string.
> 0: jdbc:drill:zk=10.10.100.186:5181/drill/rho> select count(\*) from orders_parts_metadata where timestamp_id < '2016-10-13';
> Error: SYSTEM ERROR: ClassCastException: java.lang.Integer cannot be cast to java.lang.Long
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