From 36f69faeff540cd93de0b6aa7c2d2a7781d637a6 Mon Sep 17 00:00:00 2001 From: Robert Haas <rhaas@postgresql.org> Date: Thu, 21 Apr 2016 13:30:48 -0400 Subject: [PATCH] Comment improvements for ForeignPath. It's not necessarily just scanning a base relation any more. Amit Langote and Etsuro Fujita --- src/backend/optimizer/README | 2 +- src/include/nodes/relation.h | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/src/backend/optimizer/README b/src/backend/optimizer/README index 5e124597eea..24071729282 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 e9dfb663c20..45739c3ee7a 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 -- GitLab