7914 Using a better way to get the defaults from db.

Changes:

* According to postgreSQL documentation:
(http://www.postgresql.org/docs/8.2/static/catalog-pg-attrdef.html)
we should not be using 'adsrc' field because this field is unaware of
outside changes that could affect the way that default values are
represented. Thus, I changed the queries to use
"pg_get_expr(adbin, adrelid)" instead of the historical "adsrc" field.

* Remove parsing of character type default values for 8.1 formatting since
Rails doesn't support postgreSQL 8.1 anymore.

* Remove misleading comment unrelated to code.

0 files changed, 0 insertions, 0 deletions