I'm running "PostgreSQL 9.2.2 on i686-pc-linux-gnu, compiled by gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, 32-bit" on ubuntu 12.04 .
I'm a bit perplexed by the difference in PG_EXCEPTION_CONTEXT of the following two invocations of a function where I try to get the call stack. Is this expected behaviour ?
First invocation (This is the one where I get the expected notification):
select * from testfunc2(true);
NOTICE: PL/pgSQL function testfunc(boolean) line 8 at assignment PL/pgSQL function testfunc2(boolean) line 6 at RETURNs
Second invocation (I did expect two rows of callstack here also but I only got one):
select * from testfunc2(false);
NOTICE: PL/pgSQL function testfunc2(boolean) line 6 at RETURNs
The functions:
CREATE OR REPLACE FUNCTION testfunc( div_by_zero boolean ) RETURNS text AS $BODY$ DECLARE td text; i int = 0; BEGIN BEGIN IF div_by_zero THEN i = 1/i; ELSE RAISE EXCEPTION 'an exception'; END IF; EXCEPTION WHEN raise_exception OR division_by_zero THEN GET STACKED DIAGNOSTICS td = PG_EXCEPTION_CONTEXT; RAISE NOTICE '%s',td; END; RETURN td::text; END; $BODY$ LANGUAGE plpgsql;
CREATE OR REPLACE FUNCTION testfunc2(div_by_zero boolean) RETURNS text AS $BODY$ DECLARE td text; i int = 0; BEGIN return testfunc(div_by_zero); END; $BODY$ LANGUAGE plpgsql;
