Use of ?get diagnostics'?

[Thiemo Kellner <thiemo@xxxxxxxxxxxxxxxxxxxx>]

Hi all

I try to create a function (code at https://pastebin.com/mTs18B90)  
using 'get diagnostics' to retrieve the number of affected rows.  
However, it throws

  the following exception was thrown:
SQLSTATE: 42703
column "row_count" does not exist

when I test it with

drop table if exists TEST_EXECUTE_WO_RETURN_LOGGED;
create table TEST_EXECUTE_WO_RETURN_LOGGED(I bigint, C char(2));
commit;
select EXECUTE_WO_RETURN_LOGGED(
    I_STATEMENT_TO_EXECUTE  => $$insert into  
TEST_EXECUTE_WO_RETURN_LOGGED(I, C) values (1, 'ab');$$,
    I_LEVEL                 => 'LOG',
    I_REPORT_ERRORS_ONLY    => true
);


If you want to try out the code, be aware that it uses pglogger and  
pgutils (both on SourceForge maybe not there in the version yet  
needed, work is ongoing) such that you might want to strip the  
respective calls.

I created another function using 'get diagnostics' that works - it is  
part of pglogger. Code snipped

$body$
    declare
        C_LOGGING_LEVEL_PROPERTY_NAME constant text := 'LOGGING_LEVEL';
        V_ROW_COUNT bigint;
    begin
        update PROPERTY
           set PROPERTY_VALUE_STRING = I_LEVEL
         where PROPERTY_NAME = C_LOGGING_LEVEL_PROPERTY_NAME;
        get current diagnostics V_ROW_COUNT = ROW_COUNT;


I did not find the error I am making.

Kind regards

Thiemo

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