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PL/Python array support

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Support arrays as parameters and return values of PL/Python functions.
This commit is contained in:
Peter Eisentraut
2009-12-10 20:43:40 +00:00
parent a37b001b80
commit db7386187f
4 changed files with 343 additions and 4 deletions
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65
src/pl/plpython/sql/plpython_types.sql
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@@ -204,3 +204,68 @@ SELECT * FROM test_type_conversion_bytea10('hello world', 'hello wold');
SELECT * FROM test_type_conversion_bytea10('hello word', 'hello world');
SELECT * FROM test_type_conversion_bytea10(null, 'hello word');
SELECT * FROM test_type_conversion_bytea10('hello word', null);
--
-- Arrays
--
CREATE FUNCTION test_type_conversion_array_int4(x int4[]) RETURNS int4[] AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_int4(ARRAY[0, 100]);
SELECT * FROM test_type_conversion_array_int4(ARRAY[0,-100,55]);
SELECT * FROM test_type_conversion_array_int4(ARRAY[NULL,1]);
SELECT * FROM test_type_conversion_array_int4(ARRAY[]::integer[]);
SELECT * FROM test_type_conversion_array_int4(NULL);
SELECT * FROM test_type_conversion_array_int4(ARRAY[[1,2,3],[4,5,6]]);
CREATE FUNCTION test_type_conversion_array_bytea(x bytea[]) RETURNS bytea[] AS $$
plpy.info(x, type(x))
return x
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_bytea(ARRAY[E'\\xdeadbeef'::bytea, NULL]);
CREATE FUNCTION test_type_conversion_array_mixed1() RETURNS text[] AS $$
return [123, 'abc']
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_mixed1();
CREATE FUNCTION test_type_conversion_array_mixed2() RETURNS int[] AS $$
return [123, 'abc']
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_mixed2();
CREATE FUNCTION test_type_conversion_array_record() RETURNS type_record[] AS $$
return [None]
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_record();
CREATE FUNCTION test_type_conversion_array_string() RETURNS text[] AS $$
return 'abc'
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_string();
CREATE FUNCTION test_type_conversion_array_tuple() RETURNS text[] AS $$
return ('abc', 'def')
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_tuple();
CREATE FUNCTION test_type_conversion_array_error() RETURNS int[] AS $$
return 5
$$ LANGUAGE plpythonu;
SELECT * FROM test_type_conversion_array_error();