database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-02 09:02:37 +03:00
Code Activity

Comment update for join pushdown.

Browse Source 
Etsuro Fujita
This commit is contained in:
Robert Haas
2015-09-29 07:42:30 -04:00
parent 60fcee9e5e
commit 9a6fbc2ac7
1 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/backend/optimizer/util/pathnode.c
View File

@ -1449,13 +1449,13 @@ create_worktablescan_path(PlannerInfo *root, RelOptInfo *rel,
/*
* create_foreignscan_path
* Creates a path corresponding to a scan of a foreign table,
* returning the pathnode.
* Creates a path corresponding to a scan of a foreign table or
* a foreign join, returning the pathnode.
*
* This function is never called from core Postgres; rather, it's expected
* to be called by the GetForeignPaths function of a foreign data wrapper.
* We make the FDW supply all fields of the path, since we do not have any
* way to calculate them in core.
* to be called by the GetForeignPaths or GetForeignJoinPaths function of
* a foreign data wrapper. We make the FDW supply all fields of the path,
* since we do not have any way to calculate them in core.
*/
ForeignPath *
create_foreignscan_path(PlannerInfo *root, RelOptInfo *rel,