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https://issues.apache.org/jira/browse/SPARK-20918?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan updated SPARK-20918:
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Description:
Currently, the unquoted string of a function identifier is being used as the
function identifier in the function registry. This could cause the incorrect
the behavior when users use `.` in the function names.
As an example, Spark can resolve a function like this
{code}
SELECT `d100.udf100`(`emp`.`name`) FROM `emp`;
{code}
Although the function name is wrapped with backticks, Spark still resolves it
as database name + function name, which is wrong.
was:Currently, the unquoted string of a function identifier is being used as
the function identifier in the function registry. This could cause the
incorrect the behavior when users use `.` in the function names.
> Use FunctionIdentifier as function identifiers in FunctionRegistry
> ------------------------------------------------------------------
>
> Key: SPARK-20918
> URL: https://issues.apache.org/jira/browse/SPARK-20918
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Xiao Li
> Assignee: Xiao Li
> Priority: Major
> Fix For: 2.3.0
>
>
> Currently, the unquoted string of a function identifier is being used as the
> function identifier in the function registry. This could cause the incorrect
> the behavior when users use `.` in the function names.
> As an example, Spark can resolve a function like this
> {code}
> SELECT `d100.udf100`(`emp`.`name`) FROM `emp`;
> {code}
> Although the function name is wrapped with backticks, Spark still resolves it
> as database name + function name, which is wrong.
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