The following bug has been logged on the website:
Bug reference: 14861
Logged by: Andrey Shvidky
Email address: andrey_shvidky@hotmail.com
PostgreSQL version: 9.6.5
Operating system: Windows 7 x64
Description:
/*
Faced with such a unfairness.
I have a do block or function with error handling block.
In case when error type is 42601 (syntax_error) I can't get correct error
context.
The error context contains information about do block or function itself,
but not about last executed instruction.
In the folowing example, if I remove error handling I will happily have such
a message:
ERROR: subquery must return only one column
LINE 1: SELECT (select id, val1 from aaa)
But in case when error handling presents I have only sad:
message_text = subquery must return only one column
pg_exception_context = PL/pgSQL function inline_code_block line 9 at
assignment
pg_exception_detail =
Where information about "SELECT (select id, val1 from aaa)" hided?
Repro script:
*/
create temp table aaa (id int, val1 text);
do language plpgsql $$
declareerror_message text;error_detailed_message text;error_context text;arr_test
aaa[];
begin--arr_test = (select row(id, val1) from aaa); -- No error, correct callarr_test = (select id, val1 from
aaa); -- Error 42601 syntax_error
exception--when syntax_error thenwhen others then get stacked diagnostics error_message = message_text
,error_context = pg_exception_context ,error_detailed_message = pg_exception_detail;
raise notice 'message_text = %', error_message; raise notice 'pg_exception_context = %', error_context;
raisenotice 'pg_exception_detail = %', error_detailed_message;
end
$$;
drop table if exists aaa;
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