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| author | Robert Haas <rhaas@postgresql.org> | 2014-11-07 17:26:02 -0500 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2014-11-07 17:34:36 -0500 |
| commit | 0b03e5951bf0a1a8868db13f02049cf686a82165 (patch) | |
| tree | 3495ca06369ec694e68ac84ed19c296a74521f26 /src/backend/optimizer/path/allpaths.c | |
| parent | 7250d8535b11d6443a9b27299e586c3df0654302 (diff) | |
Introduce custom path and scan providers.
This allows extension modules to define their own methods for
scanning a relation, and get the core code to use them. It's
unclear as yet how much use this capability will find, but we
won't find out if we never commit it.
KaiGai Kohei, reviewed at various times and in various levels
of detail by Shigeru Hanada, Tom Lane, Andres Freund, Álvaro
Herrera, and myself.
Diffstat (limited to 'src/backend/optimizer/path/allpaths.c')
| -rw-r--r-- | src/backend/optimizer/path/allpaths.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c index c81efe93a47..8b42e36b6d4 100644 --- a/src/backend/optimizer/path/allpaths.c +++ b/src/backend/optimizer/path/allpaths.c @@ -402,6 +402,9 @@ set_plain_rel_pathlist(PlannerInfo *root, RelOptInfo *rel, RangeTblEntry *rte) /* Consider TID scans */ create_tidscan_paths(root, rel); + /* Consider custom scans, if any */ + create_customscan_paths(root, rel, rte); + /* Now find the cheapest of the paths for this rel */ set_cheapest(rel); } |