[jira] [Updated] (DRILL-4963) Issues when overloading Drill native functions with dynamic UDFs

["Paul Rogers (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-4963?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul Rogers updated DRILL-4963:
-------------------------------
    Labels: ready-to-commit  (was: )

> 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: Future
>
>         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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