Additional PL/Python regression test expected file

plpython_subtransaction test needs a separate expected file
specifically for Python 2.5.

src/pl/plpython/expected/README

@@ -1,14 +1,15 @@
 Guide to alternative expected files:
 
-plpython_error_0.out		Python 2.4 and older
+plpython_error_0.out			Python 2.4 and older
 
-plpython_unicode.out		server encoding != SQL_ASCII and client encoding == UTF8; else ...
+plpython_unicode.out			server encoding != SQL_ASCII and client encoding == UTF8; else ...
-plpython_unicode_0.out		server encoding != SQL_ASCII and client encoding != UTF8; else ...
+plpython_unicode_0.out			server encoding != SQL_ASCII and client encoding != UTF8; else ...
-plpython_unicode_3.out		server encoding == SQL_ASCII
+plpython_unicode_3.out			server encoding == SQL_ASCII
 
-plpython_subtransaction_0.out	Python 2.5 and older (without with statement)
+plpython_subtransaction_0.out	Python 2.4 and older (without with statement)
+plpython_subtransaction_5.out	Python 2.5 (without with statement)
 
-plpython_types_3.out		Python 3.x
+plpython_types_3.out			Python 3.x
 
 Note: Building with Python 2.2 is supported, but there are no expected
 files for it (too much work to maintain).

src/pl/plpython/expected/plpython_subtransaction_5.out

@@ -0,0 +1,366 @@
+--
+-- Test explicit subtransactions
+--
+-- Test table to see if transactions get properly rolled back
+CREATE TABLE subtransaction_tbl (
+    i integer
+);
+-- Explicit case for Python <2.6
+CREATE FUNCTION subtransaction_test(what_error text = NULL) RETURNS text
+AS $$
+import sys
+subxact = plpy.subtransaction()
+subxact.__enter__()
+exc = True
+try:
+    try:
+        plpy.execute("INSERT INTO subtransaction_tbl VALUES (1)")
+        plpy.execute("INSERT INTO subtransaction_tbl VALUES (2)")
+        if what_error == "SPI":
+            plpy.execute("INSERT INTO subtransaction_tbl VALUES ('oops')")
+        elif what_error == "Python":
+            plpy.attribute_error
+    except:
+        exc = False
+        subxact.__exit__(*sys.exc_info())
+        raise
+finally:
+    if exc:
+        subxact.__exit__(None, None, None)
+$$ LANGUAGE plpythonu;
+SELECT subtransaction_test();
+ subtransaction_test 
+---------------------
+ 
+(1 row)
+
+SELECT * FROM subtransaction_tbl;
+ i 
+---
+ 1
+ 2
+(2 rows)
+
+TRUNCATE subtransaction_tbl;
+SELECT subtransaction_test('SPI');
+ERROR:  spiexceptions.InvalidTextRepresentation: invalid input syntax for integer: "oops"
+LINE 1: INSERT INTO subtransaction_tbl VALUES ('oops')
+                                               ^
+QUERY:  INSERT INTO subtransaction_tbl VALUES ('oops')
+CONTEXT:  PL/Python function "subtransaction_test"
+SELECT * FROM subtransaction_tbl;
+ i 
+---
+(0 rows)
+
+TRUNCATE subtransaction_tbl;
+SELECT subtransaction_test('Python');
+ERROR:  AttributeError: 'module' object has no attribute 'attribute_error'
+CONTEXT:  PL/Python function "subtransaction_test"
+SELECT * FROM subtransaction_tbl;
+ i 
+---
+(0 rows)
+
+TRUNCATE subtransaction_tbl;
+-- Context manager case for Python >=2.6
+CREATE FUNCTION subtransaction_ctx_test(what_error text = NULL) RETURNS text
+AS $$
+with plpy.subtransaction():
+    plpy.execute("INSERT INTO subtransaction_tbl VALUES (1)")
+    plpy.execute("INSERT INTO subtransaction_tbl VALUES (2)")
+    if what_error == "SPI":
+        plpy.execute("INSERT INTO subtransaction_tbl VALUES ('oops')")
+    elif what_error == "Python":
+        plpy.attribute_error
+$$ LANGUAGE plpythonu;
+ERROR:  could not compile PL/Python function "subtransaction_ctx_test"
+DETAIL:  SyntaxError: invalid syntax (<string>, line 3)
+SELECT subtransaction_ctx_test();
+ERROR:  function subtransaction_ctx_test() does not exist
+LINE 1: SELECT subtransaction_ctx_test();
+               ^
+HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
+SELECT * FROM subtransaction_tbl;
+ i 
+---
+(0 rows)
+
+TRUNCATE subtransaction_tbl;
+SELECT subtransaction_ctx_test('SPI');
+ERROR:  function subtransaction_ctx_test(unknown) does not exist
+LINE 1: SELECT subtransaction_ctx_test('SPI');
+               ^
+HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
+SELECT * FROM subtransaction_tbl;
+ i 
+---
+(0 rows)
+
+TRUNCATE subtransaction_tbl;
+SELECT subtransaction_ctx_test('Python');
+ERROR:  function subtransaction_ctx_test(unknown) does not exist
+LINE 1: SELECT subtransaction_ctx_test('Python');
+               ^
+HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
+SELECT * FROM subtransaction_tbl;
+ i 
+---
+(0 rows)
+
+TRUNCATE subtransaction_tbl;
+-- Nested subtransactions
+CREATE FUNCTION subtransaction_nested_test(swallow boolean = 'f') RETURNS text
+AS $$
+plpy.execute("INSERT INTO subtransaction_tbl VALUES (1)")
+with plpy.subtransaction():
+    plpy.execute("INSERT INTO subtransaction_tbl VALUES (2)")
+    try:
+        with plpy.subtransaction():
+            plpy.execute("INSERT INTO subtransaction_tbl VALUES (3)")
+            plpy.execute("error")
+    except plpy.SPIError, e:
+        if not swallow:
+            raise
+        plpy.notice("Swallowed %r" % e)
+return "ok"
+$$ LANGUAGE plpythonu;
+ERROR:  could not compile PL/Python function "subtransaction_nested_test"
+DETAIL:  SyntaxError: invalid syntax (<string>, line 4)
+SELECT subtransaction_nested_test();
+ERROR:  function subtransaction_nested_test() does not exist
+LINE 1: SELECT subtransaction_nested_test();
+               ^
+HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
+SELECT * FROM subtransaction_tbl;
+ i 
+---
+(0 rows)
+
+TRUNCATE subtransaction_tbl;
+SELECT subtransaction_nested_test('t');
+ERROR:  function subtransaction_nested_test(unknown) does not exist
+LINE 1: SELECT subtransaction_nested_test('t');
+               ^
+HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
+SELECT * FROM subtransaction_tbl;
+ i 
+---
+(0 rows)
+
+TRUNCATE subtransaction_tbl;
+-- Nested subtransactions that recursively call code dealing with
+-- subtransactions
+CREATE FUNCTION subtransaction_deeply_nested_test() RETURNS text
+AS $$
+plpy.execute("INSERT INTO subtransaction_tbl VALUES (1)")
+with plpy.subtransaction():
+    plpy.execute("INSERT INTO subtransaction_tbl VALUES (2)")
+    plpy.execute("SELECT subtransaction_nested_test('t')")
+return "ok"
+$$ LANGUAGE plpythonu;
+ERROR:  could not compile PL/Python function "subtransaction_deeply_nested_test"
+DETAIL:  SyntaxError: invalid syntax (<string>, line 4)
+SELECT subtransaction_deeply_nested_test();
+ERROR:  function subtransaction_deeply_nested_test() does not exist
+LINE 1: SELECT subtransaction_deeply_nested_test();
+               ^
+HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
+SELECT * FROM subtransaction_tbl;
+ i 
+---
+(0 rows)
+
+TRUNCATE subtransaction_tbl;
+-- Error conditions from not opening/closing subtransactions
+CREATE FUNCTION subtransaction_exit_without_enter() RETURNS void
+AS $$
+plpy.subtransaction().__exit__(None, None, None)
+$$ LANGUAGE plpythonu;
+CREATE FUNCTION subtransaction_enter_without_exit() RETURNS void
+AS $$
+plpy.subtransaction().__enter__()
+$$ LANGUAGE plpythonu;
+CREATE FUNCTION subtransaction_exit_twice() RETURNS void
+AS $$
+plpy.subtransaction().__enter__()
+plpy.subtransaction().__exit__(None, None, None)
+plpy.subtransaction().__exit__(None, None, None)
+$$ LANGUAGE plpythonu;
+CREATE FUNCTION subtransaction_enter_twice() RETURNS void
+AS $$
+plpy.subtransaction().__enter__()
+plpy.subtransaction().__enter__()
+$$ LANGUAGE plpythonu;
+CREATE FUNCTION subtransaction_exit_same_subtransaction_twice() RETURNS void
+AS $$
+s = plpy.subtransaction()
+s.__enter__()
+s.__exit__(None, None, None)
+s.__exit__(None, None, None)
+$$ LANGUAGE plpythonu;
+CREATE FUNCTION subtransaction_enter_same_subtransaction_twice() RETURNS void
+AS $$
+s = plpy.subtransaction()
+s.__enter__()
+s.__enter__()
+s.__exit__(None, None, None)
+$$ LANGUAGE plpythonu;
+-- No warnings here, as the subtransaction gets indeed closed
+CREATE FUNCTION subtransaction_enter_subtransaction_in_with() RETURNS void
+AS $$
+with plpy.subtransaction() as s:
+    s.__enter__()
+$$ LANGUAGE plpythonu;
+ERROR:  could not compile PL/Python function "subtransaction_enter_subtransaction_in_with"
+DETAIL:  SyntaxError: invalid syntax (<string>, line 3)
+CREATE FUNCTION subtransaction_exit_subtransaction_in_with() RETURNS void
+AS $$
+with plpy.subtransaction() as s:
+    s.__exit__(None, None, None)
+$$ LANGUAGE plpythonu;
+ERROR:  could not compile PL/Python function "subtransaction_exit_subtransaction_in_with"
+DETAIL:  SyntaxError: invalid syntax (<string>, line 3)
+SELECT subtransaction_exit_without_enter();
+ERROR:  ValueError: this subtransaction has not been entered
+CONTEXT:  PL/Python function "subtransaction_exit_without_enter"
+SELECT subtransaction_enter_without_exit();
+WARNING:  forcibly aborting a subtransaction that has not been exited
+CONTEXT:  PL/Python function "subtransaction_enter_without_exit"
+ subtransaction_enter_without_exit 
+-----------------------------------
+ 
+(1 row)
+
+SELECT subtransaction_exit_twice();
+WARNING:  forcibly aborting a subtransaction that has not been exited
+CONTEXT:  PL/Python function "subtransaction_exit_twice"
+ERROR:  ValueError: this subtransaction has not been entered
+CONTEXT:  PL/Python function "subtransaction_exit_twice"
+SELECT subtransaction_enter_twice();
+WARNING:  forcibly aborting a subtransaction that has not been exited
+CONTEXT:  PL/Python function "subtransaction_enter_twice"
+WARNING:  forcibly aborting a subtransaction that has not been exited
+CONTEXT:  PL/Python function "subtransaction_enter_twice"
+ subtransaction_enter_twice 
+----------------------------
+ 
+(1 row)
+
+SELECT subtransaction_exit_same_subtransaction_twice();
+ERROR:  ValueError: this subtransaction has already been exited
+CONTEXT:  PL/Python function "subtransaction_exit_same_subtransaction_twice"
+SELECT subtransaction_enter_same_subtransaction_twice();
+WARNING:  forcibly aborting a subtransaction that has not been exited
+CONTEXT:  PL/Python function "subtransaction_enter_same_subtransaction_twice"
+ERROR:  ValueError: this subtransaction has already been entered
+CONTEXT:  PL/Python function "subtransaction_enter_same_subtransaction_twice"
+SELECT subtransaction_enter_subtransaction_in_with();
+ERROR:  function subtransaction_enter_subtransaction_in_with() does not exist
+LINE 1: SELECT subtransaction_enter_subtransaction_in_with();
+               ^
+HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
+SELECT subtransaction_exit_subtransaction_in_with();
+ERROR:  function subtransaction_exit_subtransaction_in_with() does not exist
+LINE 1: SELECT subtransaction_exit_subtransaction_in_with();
+               ^
+HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
+-- Make sure we don't get a "current transaction is aborted" error
+SELECT 1 as test;
+ test 
+------
+    1
+(1 row)
+
+-- Mix explicit subtransactions and normal SPI calls
+CREATE FUNCTION subtransaction_mix_explicit_and_implicit() RETURNS void
+AS $$
+p = plpy.prepare("INSERT INTO subtransaction_tbl VALUES ($1)", ["integer"])
+try:
+    with plpy.subtransaction():
+        plpy.execute("INSERT INTO subtransaction_tbl VALUES (1)")
+        plpy.execute(p, [2])
+        plpy.execute(p, ["wrong"])
+except plpy.SPIError:
+    plpy.warning("Caught a SPI error from an explicit subtransaction")
+
+try:
+    plpy.execute("INSERT INTO subtransaction_tbl VALUES (1)")
+    plpy.execute(p, [2])
+    plpy.execute(p, ["wrong"])
+except plpy.SPIError:
+    plpy.warning("Caught a SPI error")
+$$ LANGUAGE plpythonu;
+ERROR:  could not compile PL/Python function "subtransaction_mix_explicit_and_implicit"
+DETAIL:  SyntaxError: invalid syntax (<string>, line 5)
+SELECT subtransaction_mix_explicit_and_implicit();
+ERROR:  function subtransaction_mix_explicit_and_implicit() does not exist
+LINE 1: SELECT subtransaction_mix_explicit_and_implicit();
+               ^
+HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
+SELECT * FROM subtransaction_tbl;
+ i 
+---
+(0 rows)
+
+TRUNCATE subtransaction_tbl;
+-- Alternative method names for Python <2.6
+CREATE FUNCTION subtransaction_alternative_names() RETURNS void
+AS $$
+s = plpy.subtransaction()
+s.enter()
+s.exit(None, None, None)
+$$ LANGUAGE plpythonu;
+SELECT subtransaction_alternative_names();
+ subtransaction_alternative_names 
+----------------------------------
+ 
+(1 row)
+
+-- try/catch inside a subtransaction block
+CREATE FUNCTION try_catch_inside_subtransaction() RETURNS void
+AS $$
+with plpy.subtransaction():
+     plpy.execute("INSERT INTO subtransaction_tbl VALUES (1)")
+     try:
+         plpy.execute("INSERT INTO subtransaction_tbl VALUES ('a')")
+     except plpy.SPIError:
+         plpy.notice("caught")
+$$ LANGUAGE plpythonu;
+ERROR:  could not compile PL/Python function "try_catch_inside_subtransaction"
+DETAIL:  SyntaxError: invalid syntax (<string>, line 3)
+SELECT try_catch_inside_subtransaction();
+ERROR:  function try_catch_inside_subtransaction() does not exist
+LINE 1: SELECT try_catch_inside_subtransaction();
+               ^
+HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
+SELECT * FROM subtransaction_tbl;
+ i 
+---
+(0 rows)
+
+TRUNCATE subtransaction_tbl;
+ALTER TABLE subtransaction_tbl ADD PRIMARY KEY (i);
+NOTICE:  ALTER TABLE / ADD PRIMARY KEY will create implicit index "subtransaction_tbl_pkey" for table "subtransaction_tbl"
+CREATE FUNCTION pk_violation_inside_subtransaction() RETURNS void
+AS $$
+with plpy.subtransaction():
+     plpy.execute("INSERT INTO subtransaction_tbl VALUES (1)")
+     try:
+         plpy.execute("INSERT INTO subtransaction_tbl VALUES (1)")
+     except plpy.SPIError:
+         plpy.notice("caught")
+$$ LANGUAGE plpythonu;
+ERROR:  could not compile PL/Python function "pk_violation_inside_subtransaction"
+DETAIL:  SyntaxError: invalid syntax (<string>, line 3)
+SELECT pk_violation_inside_subtransaction();
+ERROR:  function pk_violation_inside_subtransaction() does not exist
+LINE 1: SELECT pk_violation_inside_subtransaction();
+               ^
+HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
+SELECT * FROM subtransaction_tbl;
+ i 
+---
+(0 rows)
+
+DROP TABLE subtransaction_tbl;