Обсуждение: pgsql: Also save the error detail in SPIError

Also save the error detail in SPIError

The temporarily broken plpython_unicode test shows a case where this
is used.

Do remaining fix-ups on the expected files at the same time.

Branch
------
master

Details
-------
http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=418df3a5dd94d9f02b895f9c161b2435d61e0729

Modified Files
--------------
src/pl/plpython/expected/plpython_unicode_2.out |    2 +-
src/pl/plpython/expected/plpython_unicode_3.out |    1 +
src/pl/plpython/plpython.c                      |   12 +++++++-----
3 files changed, 9 insertions(+), 6 deletions(-)