Indexes on partitioned tables and foreign partitions

Hi,

8b08f7d4 added propagation of indexes on partitioned tables to
partitions, which is very cool. However, index creation also recurses
down to foreign tables. I doubt this is intentional, as such indexes are
forbidden as not making much sense; attempt to create index on
partitioned table with foreign partition leads to an error
now. Attached lines fix this.
*** a/src/backend/commands/indexcmds.c
--- b/src/backend/commands/indexcmds.c
*************** DefineIndex(Oid relationId,
*** 915,920 ****
--- 915,926 ----
                  int            maplen;
  
                  childrel = heap_open(childRelid, lockmode);
+                 /* Foreign table doesn't need indexes */
+                 if (childrel->rd_rel->relkind == RELKIND_FOREIGN_TABLE)
+                 {
+                     heap_close(childrel, NoLock);
+                     continue;
+                 }
                  childidxs = RelationGetIndexList(childrel);
                  attmap =
                      convert_tuples_by_name_map(RelationGetDescr(childrel),
*** a/src/backend/commands/tablecmds.c
--- b/src/backend/commands/tablecmds.c
*************** AttachPartitionEnsureIndexes(Relation re
*** 14352,14357 ****
--- 14352,14361 ----
      MemoryContext cxt;
      MemoryContext oldcxt;
  
+     /* Foreign table doesn't need indexes */
+     if (attachrel->rd_rel->relkind == RELKIND_FOREIGN_TABLE)
+         return;
+ 
      cxt = AllocSetContextCreate(CurrentMemoryContext,
                                  "AttachPartitionEnsureIndexes",
                                  ALLOCSET_DEFAULT_SIZES);

--
Arseny Sher
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company