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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2008-12-28 18:54:01 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2008-12-28 18:54:01 +0000 |
| commit | 95b07bc7f5010233f52f9d11da74e2e5b653b0a7 (patch) | |
| tree | 48f5858bf4eca1bfb316ef02bb959ca85f568e0a /src/include/optimizer/cost.h | |
| parent | 38e9348282e9d078487147ba8a85aebec54e3a08 (diff) | |
| download | postgresql-95b07bc7f5010233f52f9d11da74e2e5b653b0a7.tar.gz postgresql-95b07bc7f5010233f52f9d11da74e2e5b653b0a7.zip | |
Support window functions a la SQL:2008.
Hitoshi Harada, with some kibitzing from Heikki and Tom.
Diffstat (limited to 'src/include/optimizer/cost.h')
| -rw-r--r-- | src/include/optimizer/cost.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/include/optimizer/cost.h b/src/include/optimizer/cost.h index 181327caa81..777f7f0fabe 100644 --- a/src/include/optimizer/cost.h +++ b/src/include/optimizer/cost.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.93 2008/10/04 21:56:55 tgl Exp $ + * $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.94 2008/12/28 18:54:01 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -85,6 +85,10 @@ extern void cost_agg(Path *path, PlannerInfo *root, int numGroupCols, double numGroups, Cost input_startup_cost, Cost input_total_cost, double input_tuples); +extern void cost_windowagg(Path *path, PlannerInfo *root, + int numWindowFuncs, int numPartCols, int numOrderCols, + Cost input_startup_cost, Cost input_total_cost, + double input_tuples); extern void cost_group(Path *path, PlannerInfo *root, int numGroupCols, double numGroups, Cost input_startup_cost, Cost input_total_cost, |