Fujita-san, On 2016/04/20 16:20, Etsuro Fujita wrote: > On 2016/04/18 17:31, Amit Langote wrote: >> Is the following description now outdated: >> >> "ForeignPath represents a potential scan of a foreign table" >> >> Considering that there now exists FdwRoutine.GetForeignJoinPaths() whose >> product is nothing else but a ForeignPath, should it now say (patch >> attached): >> >> "ForeignPath represents a potential scan of foreign table(s)" >> >> Or something better. > > I think it'd be better to match the comment with that for > create_foreignscan_path(). So how about "ForeignPath represents a > potential scan of a foreign table, foreign join, or foreign upper-relation > processing"? I think we would probably need to update the comment in > src/backend/optimizer/README (L358), too.
That's a lot better. Updated patch attached. Thanks, Amit
diff --git a/src/backend/optimizer/README b/src/backend/optimizer/README index 5e12459..2407172 100644 --- a/src/backend/optimizer/README +++ b/src/backend/optimizer/README @@ -355,7 +355,7 @@ RelOptInfo - a relation or joined relations BitmapHeapPath - top of a bitmapped index scan TidPath - scan by CTID SubqueryScanPath - scan a subquery-in-FROM - ForeignPath - scan a foreign table + ForeignPath - scan a foreign table, foreign join or foreign upper-relation CustomPath - for custom scan providers AppendPath - append multiple subpaths together MergeAppendPath - merge multiple subpaths, preserving their common sort order diff --git a/src/include/nodes/relation.h b/src/include/nodes/relation.h index e9dfb66..45739c3 100644 --- a/src/include/nodes/relation.h +++ b/src/include/nodes/relation.h @@ -1030,7 +1030,8 @@ typedef struct SubqueryScanPath } SubqueryScanPath; /* - * ForeignPath represents a potential scan of a foreign table + * ForeignPath represents a potential scan of a foreign table, foreign join + * or foreign upper-relation. * * fdw_private stores FDW private data about the scan. While fdw_private is * not actually touched by the core code during normal operations, it's
-- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
