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Support named and default arguments in CALL

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We need to call expand_function_arguments() to expand named and default
arguments.

In PL/pgSQL, we also need to deal with named and default INOUT arguments
when receiving the output values into variables.

Author: Pavel Stehule <pavel.stehule@gmail.com>
This commit is contained in:
Peter Eisentraut
2018-04-13 17:06:28 -04:00
parent 7c44c46deb
commit a8677e3ff6
8 changed files with 261 additions and 31 deletions
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25
src/test/regress/expected/create_procedure.out
View File

@ -91,6 +91,31 @@ $$;
ERROR: calling procedures with output arguments is not supported in SQL functions
CONTEXT: SQL function "ptest4b"
DROP PROCEDURE ptest4a;
-- named and default parameters
CREATE OR REPLACE PROCEDURE ptest5(a int, b text, c int default 100)
LANGUAGE SQL
AS $$
INSERT INTO cp_test VALUES(a, b);
INSERT INTO cp_test VALUES(c, b);
$$;
TRUNCATE cp_test;
CALL ptest5(10, 'Hello', 20);
CALL ptest5(10, 'Hello');
CALL ptest5(10, b => 'Hello');
CALL ptest5(b => 'Hello', a => 10);
SELECT * FROM cp_test;
a | b
-----+-------
10 | Hello
20 | Hello
10 | Hello
100 | Hello
10 | Hello
100 | Hello
10 | Hello
100 | Hello
(8 rows)
-- various error cases
CALL version(); -- error: not a procedure
ERROR: version() is not a procedure

19
src/test/regress/sql/create_procedure.sql
View File

@ -65,6 +65,25 @@ $$;
DROP PROCEDURE ptest4a;
-- named and default parameters
CREATE OR REPLACE PROCEDURE ptest5(a int, b text, c int default 100)
LANGUAGE SQL
AS $$
INSERT INTO cp_test VALUES(a, b);
INSERT INTO cp_test VALUES(c, b);
$$;
TRUNCATE cp_test;
CALL ptest5(10, 'Hello', 20);
CALL ptest5(10, 'Hello');
CALL ptest5(10, b => 'Hello');
CALL ptest5(b => 'Hello', a => 10);
SELECT * FROM cp_test;
-- various error cases
CALL version(); -- error: not a procedure