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Add SQL-callable pg_get_object_address

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This allows access to get_object_address from SQL, which is useful to
obtain OID addressing information from data equivalent to that emitted
by the parser.  This is necessary infrastructure of a project to let
replication systems propagate object dropping events to remote servers,
where the schema might be different than the server originating the
DROP.

This patch also adds support for OBJECT_DEFAULT to get_object_address;
that is, it is now possible to refer to a column's default value.

Catalog version bumped due to the new function.

Reviewed by Stephen Frost, Heikki Linnakangas, Robert Haas, Andres
Freund, Abhijit Menon-Sen, Adam Brightwell.
This commit is contained in:
Alvaro Herrera
2014-12-23 15:31:29 -03:00
parent 1826987a46
commit d7ee82e50f
13 changed files with 1059 additions and 18 deletions
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1
src/backend/commands/event_trigger.c
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@ -1055,6 +1055,7 @@ EventTriggerSupportsObjectType(ObjectType obtype)
case OBJECT_COLUMN:
case OBJECT_COLLATION:
case OBJECT_CONVERSION:
case OBJECT_DEFAULT:
case OBJECT_DOMAIN:
case OBJECT_DOMCONSTRAINT:
case OBJECT_EXTENSION: