[
https://issues.apache.org/jira/browse/DRILL-6378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Volodymyr Vysotskyi resolved DRILL-6378.
----------------------------------------
Resolution: Fixed
Fixed in the scope of DRILL-6094
> MajorType passed into UDF with FieldReader has unset prec, scale for DECIMAL
> ----------------------------------------------------------------------------
>
> Key: DRILL-6378
> URL: https://issues.apache.org/jira/browse/DRILL-6378
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.13.0
> Reporter: Paul Rogers
> Assignee: Volodymyr Vysotskyi
> Priority: Major
>
> UDFs allow passing in a generic {{FieldReader}} such as for the {{typeof}}
> function. I tried to modify the new {{sqlTypeOf()}} function to include the
> DECIMAL precision and scale, something like: {{DECIMAL(9, 2)}}.
> But, the {{MajorType}} associated with the {{FieldReader}} has these values
> as 0. Not sure if it is because the DECIMAL is the result of a cast, or if
> there is a deeper bug.
> Query:
> {noformat}
> ALTER SESSION SET `planner.enable_decimal_data_type` = true;
> SELECT sqlTypeof(CAST(a AS DECIMAL)) FROM (VALUES (1)) AS T(a);
> {noformat}
> Debug information for the {{MajorType}}
> {noformat}
> type TypeProtos$MajorType (id=151)
> precision_ 0
> scale_ 0
> {noformat}
> This bug is not simply a nuisance for formatting. The precision and scale are
> required to make sense of any {{DECIMAL}} values that the function wants to
> process: without these values, the function does not know the meaning of the
> {{DECIMAL}} data.
> Once this bug is fixed, reenable the type suffix code in
> {{UnionFunctions.extendType()}}.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
