Remove support for Python older than 2.6

Supporting very old Python versions is a maintenance burden,
especially with the several variant test files to maintain for Python
<2.6.

Since we have dropped support for older OpenSSL versions in
7b283d0e1d1d79bf1c962d790c94d2a53f3bb38a, RHEL 5 is now effectively
desupported, and that was also the only mainstream operating system
still using Python versions before 2.6, so it's a good time to drop
those as well.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/flat/98b69261-298c-13d2-f34d-836fd9c29b21%402ndquadrant.com

1 files changed, 0 insertions, 37 deletions

diff --git a/src/pl/plpython/sql/plpython_subtransaction.sql b/src/pl/plpython/sql/plpython_subtransaction.sql
index 398c65720c..38c8617828 100644
--- a/src/pl/plpython/sql/plpython_subtransaction.sql
+++ b/src/pl/plpython/sql/plpython_subtransaction.sql
@@ -8,43 +8,6 @@ CREATE TABLE subtransaction_tbl (
     i integer
 );
 
--- Explicit case for Python <2.6
-
-CREATE FUNCTION subtransaction_test(what_error text = NULL) RETURNS text
-AS $$
-import sys
-subxact = plpy.subtransaction()
-subxact.__enter__()
-exc = True
-try:
-    try:
-        plpy.execute("INSERT INTO subtransaction_tbl VALUES (1)")
-        plpy.execute("INSERT INTO subtransaction_tbl VALUES (2)")
-        if what_error == "SPI":
-            plpy.execute("INSERT INTO subtransaction_tbl VALUES ('oops')")
-        elif what_error == "Python":
-            raise Exception("Python exception")
-    except:
-        exc = False
-        subxact.__exit__(*sys.exc_info())
-        raise
-finally:
-    if exc:
-        subxact.__exit__(None, None, None)
-$$ LANGUAGE plpythonu;
-
-SELECT subtransaction_test();
-SELECT * FROM subtransaction_tbl;
-TRUNCATE subtransaction_tbl;
-SELECT subtransaction_test('SPI');
-SELECT * FROM subtransaction_tbl;
-TRUNCATE subtransaction_tbl;
-SELECT subtransaction_test('Python');
-SELECT * FROM subtransaction_tbl;
-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():