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Posted to issues@drill.apache.org by "Roman (JIRA)" <ji...@apache.org> on 2017/03/07 19:13:38 UTC
[jira] [Closed] (DRILL-4963) Issues when overloading Drill native
functions with dynamic UDFs
[ https://issues.apache.org/jira/browse/DRILL-4963?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Roman closed DRILL-4963.
------------------------
I have tested this issue and it was not reproduced. Verified and closed.
> Issues when overloading Drill native functions with dynamic UDFs
> ----------------------------------------------------------------
>
> Key: DRILL-4963
> URL: https://issues.apache.org/jira/browse/DRILL-4963
> Project: Apache Drill
> Issue Type: Bug
> Components: Functions - Drill
> Affects Versions: 1.9.0
> Reporter: Roman
> Assignee: Arina Ielchiieva
> Labels: ready-to-commit
> Fix For: 1.10.0
>
> Attachments: subquery_udf-1.0.jar, subquery_udf-1.0-sources.jar, test_overloading-1.0.jar, test_overloading-1.0-sources.jar
>
>
> I created jar file which overloads 3 DRILL native functions (LOG(VARCHAR-REQUIRED), CURRENT_DATE(VARCHAR-REQUIRED) and ABS(VARCHAR-REQUIRED,VARCHAR-REQUIRED)) and registered it as dynamic UDF.
> If I try to use my functions I will get errors:
> {code:xml}
> SELECT CURRENT_DATE('test') FROM (VALUES(1));
> {code}
> Error: FUNCTION ERROR: CURRENT_DATE does not support operand types (CHAR)
> SQL Query null
> {code:xml}
> SELECT ABS('test','test') FROM (VALUES(1));
> {code}
> Error: FUNCTION ERROR: ABS does not support operand types (CHAR,CHAR)
> SQL Query null
> {code:xml}
> SELECT LOG('test') FROM (VALUES(1));
> {code}
> Error: SYSTEM ERROR: DrillRuntimeException: Failure while materializing expression in constant expression evaluator LOG('test'). Errors:
> Error in expression at index -1. Error: Missing function implementation: castTINYINT(VARCHAR-REQUIRED). Full expression: UNKNOWN EXPRESSION.
> But if I rerun all this queries after "DrillRuntimeException", they will run correctly. It seems that Drill have not updated the function signature before that error. Also if I add jar as usual UDF (copy jar to /drill_home/jars/3rdparty and restart drillbits), all queries will run correctly without errors.
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