diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2010-02-12 17:33:21 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2010-02-12 17:33:21 +0000 |
| commit | ec4be2ee6827b6bd85e0813c7a8993cfbb0e6fa7 (patch) | |
| tree | f4f98eb0f5ff45dbcd23778a1c683a1f597431b7 /src/include/nodes/plannodes.h | |
| parent | a5348fafd182d5b84c89b43af3746711ce28f319 (diff) | |
Extend the set of frame options supported for window functions.
This patch allows the frame to start from CURRENT ROW (in either RANGE or
ROWS mode), and it also adds support for ROWS n PRECEDING and ROWS n FOLLOWING
start and end points. (RANGE value PRECEDING/FOLLOWING isn't there yet ---
the grammar works, but that's all.)
Hitoshi Harada, reviewed by Pavel Stehule
Diffstat (limited to 'src/include/nodes/plannodes.h')
| -rw-r--r-- | src/include/nodes/plannodes.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/include/nodes/plannodes.h b/src/include/nodes/plannodes.h index 48f75788585..b6640cfab33 100644 --- a/src/include/nodes/plannodes.h +++ b/src/include/nodes/plannodes.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/nodes/plannodes.h,v 1.115 2010/01/02 16:58:04 momjian Exp $ + * $PostgreSQL: pgsql/src/include/nodes/plannodes.h,v 1.116 2010/02/12 17:33:21 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -552,6 +552,8 @@ typedef struct WindowAgg AttrNumber *ordColIdx; /* their indexes in the target list */ Oid *ordOperators; /* equality operators for ordering columns */ int frameOptions; /* frame_clause options, see WindowDef */ + Node *startOffset; /* expression for starting bound, if any */ + Node *endOffset; /* expression for ending bound, if any */ } WindowAgg; /* ---------------- |