database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-05 07:21:24 +03:00
Code Activity

Add pg_identify_object_as_address

Browse Source 
This function returns object type and objname/objargs arrays, which can
be passed to pg_get_object_address.  This is especially useful because
the textual representation can be copied to a remote server in order to
obtain the corresponding OID-based address.  In essence, this function
is the inverse of recently added pg_get_object_address().

Catalog version bumped due to the addition of the new function.

Also add docs to pg_get_object_address.
This commit is contained in:
Alvaro Herrera
2014-12-30 15:41:50 -03:00
parent 5b447ad3a9
commit a676201490
9 changed files with 485 additions and 107 deletions
Download Patch File Download Diff File Expand all files Collapse all files

60
src/backend/utils/adt/regproc.c
View File

@ -438,6 +438,41 @@ format_procedure_internal(Oid procedure_oid, bool force_qualify)
return result;
}
/*
* Output a objname/objargs representation for the procedure with the
* given OID. If it doesn't exist, an error is thrown.
*
* This can be used to feed get_object_address.
*/
void
format_procedure_parts(Oid procedure_oid, List **objnames, List **objargs)
{
HeapTuple proctup;
Form_pg_proc procform;
int nargs;
int i;
proctup = SearchSysCache1(PROCOID, ObjectIdGetDatum(procedure_oid));
if (!HeapTupleIsValid(proctup))
elog(ERROR, "cache lookup failed for procedure with OID %u", procedure_oid);
procform = (Form_pg_proc) GETSTRUCT(proctup);
nargs = procform->pronargs;
*objnames = list_make2(get_namespace_name(procform->pronamespace),
pstrdup(NameStr(procform->proname)));
*objargs = NIL;
for (i = 0; i < nargs; i++)
{
Oid thisargtype = procform->proargtypes.values[i];
*objargs = lappend(*objargs, format_type_be_qualified(thisargtype));
}
ReleaseSysCache(proctup);
}
/*
* regprocedureout - converts proc OID to "pro_name(args)"
*/
@ -875,6 +910,31 @@ format_operator_qualified(Oid operator_oid)
return format_operator_internal(operator_oid, true);
}
void
format_operator_parts(Oid operator_oid, List **objnames, List **objargs)
{
HeapTuple opertup;
Form_pg_operator oprForm;
opertup = SearchSysCache1(OPEROID, ObjectIdGetDatum(operator_oid));
if (!HeapTupleIsValid(opertup))
elog(ERROR, "cache lookup failed for operator with OID %u",
operator_oid);
oprForm = (Form_pg_operator) GETSTRUCT(opertup);
*objnames = list_make2(get_namespace_name(oprForm->oprnamespace),
pstrdup(NameStr(oprForm->oprname)));
*objargs = NIL;
if (oprForm->oprleft)
*objargs = lappend(*objargs,
format_type_be_qualified(oprForm->oprleft));
if (oprForm->oprright)
*objargs = lappend(*objargs,
format_type_be_qualified(oprForm->oprright));
ReleaseSysCache(opertup);
}
/*
* regoperatorout - converts operator OID to "opr_name(args)"
*/