Log Message:
-----------
Correct/improve the datetime_precision field in the information schema.
In particular, always show 0 for the date type instead of null, and show
6 (the default) for time, timestamp, and interval without a declared
precision. This is now in fuller conformance with the SQL standard.
Also clarify the documentation about this.
discovered and analyzed by Konstantin Izmailov and Tom Lane
Modified Files:
--------------
pgsql/doc/src/sgml:
information_schema.sgml (r1.38 -> r1.39)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/information_schema.sgml?r1=1.38&r2=1.39)
pgsql/src/backend/catalog:
information_schema.sql (r1.53 -> r1.54)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/information_schema.sql?r1=1.53&r2=1.54)
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