diff options
Diffstat (limited to 'src/backend/optimizer/README')
| -rw-r--r-- | src/backend/optimizer/README | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/optimizer/README b/src/backend/optimizer/README index fc793ac8ae..d6402cf911 100644 --- a/src/backend/optimizer/README +++ b/src/backend/optimizer/README @@ -343,11 +343,12 @@ RelOptInfo - a relation or joined relations join clauses) Path - every way to generate a RelOptInfo(sequential,index,joins) - SeqScan - a plain Path node with pathtype = T_SeqScan - IndexPath - index scans + SeqScan - represents a sequential scan plan + IndexPath - index scan BitmapHeapPath - top of a bitmapped index scan TidPath - scan by CTID AppendPath - append multiple subpaths together + MergeAppendPath - merge multiple subpaths, preserving their common sort order ResultPath - a Result plan node (used for FROM-less SELECT) MaterialPath - a Material plan node UniquePath - remove duplicate rows |