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/backend/nodes/copyfuncs.c | |
| parent | a5348fafd182d5b84c89b43af3746711ce28f319 (diff) | |
| download | postgresql-ec4be2ee6827b6bd85e0813c7a8993cfbb0e6fa7.tar.gz postgresql-ec4be2ee6827b6bd85e0813c7a8993cfbb0e6fa7.zip | |
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/backend/nodes/copyfuncs.c')
| -rw-r--r-- | src/backend/nodes/copyfuncs.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c index 4de0f7c87e9..271a7a2129b 100644 --- a/src/backend/nodes/copyfuncs.c +++ b/src/backend/nodes/copyfuncs.c @@ -15,7 +15,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.460 2010/01/28 23:21:11 petere Exp $ + * $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.461 2010/02/12 17:33:20 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -718,6 +718,8 @@ _copyWindowAgg(WindowAgg *from) COPY_POINTER_FIELD(ordOperators, from->ordNumCols * sizeof(Oid)); } COPY_SCALAR_FIELD(frameOptions); + COPY_NODE_FIELD(startOffset); + COPY_NODE_FIELD(endOffset); return newnode; } @@ -1848,6 +1850,8 @@ _copyWindowClause(WindowClause *from) COPY_NODE_FIELD(partitionClause); COPY_NODE_FIELD(orderClause); COPY_SCALAR_FIELD(frameOptions); + COPY_NODE_FIELD(startOffset); + COPY_NODE_FIELD(endOffset); COPY_SCALAR_FIELD(winref); COPY_SCALAR_FIELD(copiedOrder); @@ -2076,6 +2080,8 @@ _copyWindowDef(WindowDef *from) COPY_NODE_FIELD(partitionClause); COPY_NODE_FIELD(orderClause); COPY_SCALAR_FIELD(frameOptions); + COPY_NODE_FIELD(startOffset); + COPY_NODE_FIELD(endOffset); COPY_LOCATION_FIELD(location); return newnode; |