It's not clear to me what should happen to the other plpython_unicode
variant expected files, but this patch gets things passing on my own
machines and at least some of the buildfarm.
SELECT unicode_plan1();
WARNING: PL/Python: plpy.Error: unrecognized error in PLy_spi_execute_plan
CONTEXT: PL/Python function "unicode_plan1"
-ERROR: PL/Python: could not convert Python Unicode object to PostgreSQL server encoding
-DETAIL: UnicodeEncodeError: 'ascii' codec can't encode character u'\x80' in position 0: ordinal not in range(128)
+ERROR: PL/Python: plpy.SPIError: PL/Python: could not convert Python Unicode object to PostgreSQL server encoding
CONTEXT: PL/Python function "unicode_plan1"
SELECT unicode_plan2();
unicode_plan2