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Posted to issues-all@impala.apache.org by "gaoxiaoqing (Jira)" <ji...@apache.org> on 2022/11/16 12:17:00 UTC

[jira] [Updated] (IMPALA-11728) Set fallback database for functions

     [ https://issues.apache.org/jira/browse/IMPALA-11728?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

gaoxiaoqing updated IMPALA-11728:
---------------------------------
    Description: 
{code:java}
CREATE FUNCTION default.function_name([arg_type[, arg_type...])
  RETURNS return_type
  LOCATION 'hdfs_path_to_dot_so'
  SYMBOL='symbol_name' {code}
 
{noformat}
use functional;
select function_name();
ERROR: AnalysisException: functional.function_name() unknown for database functional.{noformat}
 

The create function statement can only works on specified default database.

Add a fallback database for functions as query option. It works on all database without changing query. 
{noformat}
use functional;
set db_name_with_global_udf=default;
select function_name(); // It works.{noformat}

  was:
{code:java}
CREATE FUNCTION default.function_name([arg_type[, arg_type...])
  RETURNS return_type
  LOCATION 'hdfs_path_to_dot_so'
  SYMBOL='symbol_name' {code}
 
{noformat}
use functional;
select function_name();
ERROR: AnalysisException: functional.function_name() unknown for database rawdata.{noformat}
 

The create function statement can only works on specified default database.

Add a fallback database for functions as query option. It works on all database without changing query. 
{noformat}
use functional;
set db_name_with_global_udf=default;
select function_name(); // It works.{noformat}


> Set fallback database for functions
> -----------------------------------
>
>                 Key: IMPALA-11728
>                 URL: https://issues.apache.org/jira/browse/IMPALA-11728
>             Project: IMPALA
>          Issue Type: New Feature
>            Reporter: gaoxiaoqing
>            Assignee: gaoxiaoqing
>            Priority: Major
>
> {code:java}
> CREATE FUNCTION default.function_name([arg_type[, arg_type...])
>   RETURNS return_type
>   LOCATION 'hdfs_path_to_dot_so'
>   SYMBOL='symbol_name' {code}
>  
> {noformat}
> use functional;
> select function_name();
> ERROR: AnalysisException: functional.function_name() unknown for database functional.{noformat}
>  
> The create function statement can only works on specified default database.
> Add a fallback database for functions as query option. It works on all database without changing query. 
> {noformat}
> use functional;
> set db_name_with_global_udf=default;
> select function_name(); // It works.{noformat}



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