pgsql: pg_event_trigger_dropped_objects: add behavior flags

pg_event_trigger_dropped_objects: add behavior flags

Add "normal" and "original" flags as output columns to the
pg_event_trigger_dropped_objects() function.  With this it's possible to
distinguish which objects, among those listed, need to be explicitely
referenced when trying to replicate a deletion.

This is necessary so that the list of objects can be pruned to the
minimum necessary to replicate the DROP command in a remote server that
might have slightly different schema (for instance, TOAST tables and
constraints with different names and such.)

Catalog version bumped due to change of function definition.

Reviewed by: Abhijit Menon-Sen, Stephen Frost, Heikki Linnakangas,
Robert Haas.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/0ee98d1cbf1cd3b888633b2ee90e0001889c12b9

Modified Files
--------------
doc/src/sgml/func.sgml                      |   13 +++++++++
src/backend/catalog/dependency.c            |   21 ++++++++++----
src/backend/commands/event_trigger.c        |   16 +++++++++--
src/include/catalog/catversion.h            |    2 +-
src/include/catalog/pg_proc.h               |    2 +-
src/include/commands/event_trigger.h        |    3 +-
src/test/regress/expected/event_trigger.out |   40 +++++++++++++++++++++++++++
src/test/regress/sql/event_trigger.sql      |   30 ++++++++++++++++++++
8 files changed, 115 insertions(+), 12 deletions(-)