diff options
Diffstat (limited to 'src/pl/plpython/sql/plpython_setof.sql')
| -rw-r--r-- | src/pl/plpython/sql/plpython_setof.sql | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/pl/plpython/sql/plpython_setof.sql b/src/pl/plpython/sql/plpython_setof.sql new file mode 100644 index 0000000000..881d90222f --- /dev/null +++ b/src/pl/plpython/sql/plpython_setof.sql @@ -0,0 +1,46 @@ +-- +-- Test returning SETOF +-- + +CREATE FUNCTION test_setof_as_list(count integer, content text) RETURNS SETOF text AS $$ +return [ content ]*count +$$ LANGUAGE plpythonu; + +CREATE FUNCTION test_setof_as_tuple(count integer, content text) RETURNS SETOF text AS $$ +t = () +for i in xrange(count): + t += ( content, ) +return t +$$ LANGUAGE plpythonu; + +CREATE FUNCTION test_setof_as_iterator(count integer, content text) RETURNS SETOF text AS $$ +class producer: + def __init__ (self, icount, icontent): + self.icontent = icontent + self.icount = icount + def __iter__ (self): + return self + def next (self): + if self.icount == 0: + raise StopIteration + self.icount -= 1 + return self.icontent +return producer(count, content) +$$ LANGUAGE plpythonu; + + +-- Test set returning functions +SELECT test_setof_as_list(0, 'list'); +SELECT test_setof_as_list(1, 'list'); +SELECT test_setof_as_list(2, 'list'); +SELECT test_setof_as_list(2, null); + +SELECT test_setof_as_tuple(0, 'tuple'); +SELECT test_setof_as_tuple(1, 'tuple'); +SELECT test_setof_as_tuple(2, 'tuple'); +SELECT test_setof_as_tuple(2, null); + +SELECT test_setof_as_iterator(0, 'list'); +SELECT test_setof_as_iterator(1, 'list'); +SELECT test_setof_as_iterator(2, 'list'); +SELECT test_setof_as_iterator(2, null); |
