Обсуждение: BUG #4329: Transaction model changed?
The following bug has been logged online: Bug reference: 4329 Logged by: Gerd Grossmann Email address: gerdgrossmann@njini.com PostgreSQL version: 8.0.17 Operating system: Red Hat Enterprise Linux 4 Description: Transaction model changed? Details: Executing the following CREATE OR REPLACE FUNCTION compatTest() RETURNS void AS $$ DECLARE createStmnt TEXT; BEGIN createStmnt:='CREATE TABLE test (val integer);INSERT INTO test (val) VALUES (1);'; EXECUTE createStmnt; RETURN; END; $$ LANGUAGE plpgsql; SELECT compatTest(); would just work fine under postgresql 8.3 but does not work with postgresql 8.0. It complains that the table test does not exist! Instead it has to be written like this: CREATE OR REPLACE FUNCTION compatTest() RETURNS void AS $$ DECLARE createStmnt TEXT; BEGIN createStmnt:='CREATE TABLE test (val integer);'; EXECUTE createStmnt; createStmnt:='INSERT INTO test (val) VALUES (1);'; EXECUTE createStmnt; RETURN; END; $$ LANGUAGE plpgsql; SELECT compatTest(); To me it looks like 8.3 is correct. I assume this is also the reason why it changed. But since it was not documented anywhere ..
"Gerd Grossmann" <gerdgrossmann@njini.com> writes: > Executing the following > createStmnt:='CREATE TABLE test (val integer);INSERT INTO test (val) > VALUES (1);'; > EXECUTE createStmnt; > would just work fine under postgresql 8.3 but does not work with postgresql > 8.0. It complains that the table test does not exist! I get the same complaint in both versions; which I find unsurprising because the whole querystring is parsed and planned before execution begins. regards, tom lane