Hi,
I am trying to restore a database with a generated column. The generated column is created using the function below. This column doesn't get restored. Can you tell me what I am doing wrong in the function?
I am calling a function within a function. Could this be the issue?
After the restore, if I update the base column "info" then the generated column - "completed_date_time" gets populated:
update jobs set info = info || jsonb_build_object('dq', info->>'dq') .
------------------------------------
column definition is as below:
completed_date_time timestamptz GENERATED ALWAYS AS
(task_completed_date(info->>'dd', info->>'qq', info->>'dp', info->>'ej', info->>'dq', info->>'ek') ) stored
-- 'info' is a jsonb column in the same table
------------------------------------------ My function --------------
-- task_completed_date() is defined as 'immutable', but calls another function:
;create or replace FUNCTION task_completed_date(completed_date_string text, completed_time_string text default null,
check_in_date_string text default null, check_in_time_string text default null,
check_out_date_string text default null, check_out_time_string text default null)
RETURNS timestamptz as
$$
begin
if check_out_date_string is not null and length(check_out_date_string)> 0 then
return
date_convert_date_time_string_to_timestamptz(check_out_date_string, check_out_time_string);
else
return date_convert_date_time_string_to_timestamptz(completed_date_string, completed_time_string);
end if;
exception when others then
return null;
END ;
$$
LANGUAGE plpgsql immutable;
-----------------------------------------------------------
-- function date_convert_date_time_string_to_timestamptz is also defined as 'immutable':
create or replace FUNCTION date_convert_date_time_string_to_timestamptz(VARIADIC params text[])
RETURNS timestamptz as
$$
begin
return array_to_string($1 , ' ')::timestamptz ;
exception when others then
return null;
END ;
$$
LANGUAGE plpgsql immutable;
------------------------------------------------------------
Thank you,
