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-- test error handling, i forgot to restore Warn_restart in
-- the trigger handler once. the errors and subsequent core dump were
-- interesting.
/* Flat out Python syntax error
*/
CREATE FUNCTION python_syntax_error() RETURNS text
AS
'.syntaxerror'
LANGUAGE plpythonu;
/* With check_function_bodies = false the function should get defined
* and the error reported when called
*/
SET check_function_bodies = false;
CREATE FUNCTION python_syntax_error() RETURNS text
AS
'.syntaxerror'
LANGUAGE plpythonu;
SELECT python_syntax_error();
/* Run the function twice to check if the hashtable entry gets cleaned up */
SELECT python_syntax_error();
RESET check_function_bodies;
/* Flat out syntax error
*/
CREATE FUNCTION sql_syntax_error() RETURNS text
AS
'plpy.execute("syntax error")'
LANGUAGE plpythonu;
SELECT sql_syntax_error();
/* check the handling of uncaught python exceptions
*/
CREATE FUNCTION exception_index_invalid(text) RETURNS text
AS
'return args[1]'
LANGUAGE plpythonu;
SELECT exception_index_invalid('test');
/* check handling of nested exceptions
*/
CREATE FUNCTION exception_index_invalid_nested() RETURNS text
AS
'rv = plpy.execute("SELECT test5(''foo'')")
return rv[0]'
LANGUAGE plpythonu;
SELECT exception_index_invalid_nested();
/* a typo
*/
CREATE FUNCTION invalid_type_uncaught(a text) RETURNS text
AS
'if "plan" not in SD:
q = "SELECT fname FROM users WHERE lname = $1"
SD["plan"] = plpy.prepare(q, [ "test" ])
rv = plpy.execute(SD["plan"], [ a ])
if len(rv):
return rv[0]["fname"]
return None
'
LANGUAGE plpythonu;
SELECT invalid_type_uncaught('rick');
/* for what it's worth catch the exception generated by
* the typo, and return None
*/
CREATE FUNCTION invalid_type_caught(a text) RETURNS text
AS
'if "plan" not in SD:
q = "SELECT fname FROM users WHERE lname = $1"
try:
SD["plan"] = plpy.prepare(q, [ "test" ])
except plpy.SPIError, ex:
plpy.notice(str(ex))
return None
rv = plpy.execute(SD["plan"], [ a ])
if len(rv):
return rv[0]["fname"]
return None
'
LANGUAGE plpythonu;
SELECT invalid_type_caught('rick');
/* for what it's worth catch the exception generated by
* the typo, and reraise it as a plain error
*/
CREATE FUNCTION invalid_type_reraised(a text) RETURNS text
AS
'if "plan" not in SD:
q = "SELECT fname FROM users WHERE lname = $1"
try:
SD["plan"] = plpy.prepare(q, [ "test" ])
except plpy.SPIError, ex:
plpy.error(str(ex))
rv = plpy.execute(SD["plan"], [ a ])
if len(rv):
return rv[0]["fname"]
return None
'
LANGUAGE plpythonu;
SELECT invalid_type_reraised('rick');
/* no typo no messing about
*/
CREATE FUNCTION valid_type(a text) RETURNS text
AS
'if "plan" not in SD:
SD["plan"] = plpy.prepare("SELECT fname FROM users WHERE lname = $1", [ "text" ])
rv = plpy.execute(SD["plan"], [ a ])
if len(rv):
return rv[0]["fname"]
return None
'
LANGUAGE plpythonu;
SELECT valid_type('rick');
/* manually starting subtransactions - a bad idea
*/
CREATE FUNCTION manual_subxact() RETURNS void AS $$
plpy.execute("savepoint save")
plpy.execute("create table foo(x integer)")
plpy.execute("rollback to save")
$$ LANGUAGE plpythonu;
SELECT manual_subxact();
/* same for prepared plans
*/
CREATE FUNCTION manual_subxact_prepared() RETURNS void AS $$
save = plpy.prepare("savepoint save")
rollback = plpy.prepare("rollback to save")
plpy.execute(save)
plpy.execute("create table foo(x integer)")
plpy.execute(rollback)
$$ LANGUAGE plpythonu;
SELECT manual_subxact_prepared();
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