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pg_event_trigger_dropped_objects: add behavior flags

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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.
This commit is contained in:
Alvaro Herrera
2014-12-19 15:00:45 -03:00
parent 5c805d0a81
commit 0ee98d1cbf
8 changed files with 114 additions and 11 deletions
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13
doc/src/sgml/func.sgml
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@@ -17729,6 +17729,19 @@ FOR EACH ROW EXECUTE PROCEDURE suppress_redundant_updates_trigger();
<entry><type>int32</type></entry>
<entry>Object sub-id (e.g. attribute number for columns)</entry>
</row>
<row>
<entry><literal>original</literal></entry>
<entry><type>bool</type></entry>
<entry>Flag used to identify the root object(s) of the deletion</entry>
</row>
<row>
<entry><literal>normal</literal></entry>
<entry><type>bool</type></entry>
<entry>
Flag indicating that there's a normal dependency relationship
in the dependency graph leading to this object
</entry>
</row>
<row>
<entry><literal>object_type</literal></entry>
<entry><type>text</type></entry>