Thread: pgsql: Implement the collation columns of various information schema vi

Implement the collation columns of various information schema views

Fill in the collation columns of the views attributes, columns,
domains, and element_types.  Also update collation information in
sql_implementation_info.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/615c3849722ade16282750aa17658a2543fd2acf

Modified Files
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doc/src/sgml/information_schema.sgml       |  108 ++++++++++++++++++++++++----
src/backend/catalog/information_schema.sql |   78 ++++++++++----------
2 files changed, 132 insertions(+), 54 deletions(-)