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| 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/outfuncs.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/outfuncs.c')
| -rw-r--r-- | src/backend/nodes/outfuncs.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c index 70950807908..593fe397d3f 100644 --- a/src/backend/nodes/outfuncs.c +++ b/src/backend/nodes/outfuncs.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.381 2010/01/28 23:21:12 petere Exp $ + * $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.382 2010/02/12 17:33:20 tgl Exp $ * * NOTES * Every node type that can appear in stored rules' parsetrees *must* @@ -610,6 +610,8 @@ _outWindowAgg(StringInfo str, WindowAgg *node) appendStringInfo(str, " %u", node->ordOperators[i]); WRITE_INT_FIELD(frameOptions); + WRITE_NODE_FIELD(startOffset); + WRITE_NODE_FIELD(endOffset); } static void @@ -2035,6 +2037,8 @@ _outWindowClause(StringInfo str, WindowClause *node) WRITE_NODE_FIELD(partitionClause); WRITE_NODE_FIELD(orderClause); WRITE_INT_FIELD(frameOptions); + WRITE_NODE_FIELD(startOffset); + WRITE_NODE_FIELD(endOffset); WRITE_UINT_FIELD(winref); WRITE_BOOL_FIELD(copiedOrder); } @@ -2326,6 +2330,8 @@ _outWindowDef(StringInfo str, WindowDef *node) WRITE_NODE_FIELD(partitionClause); WRITE_NODE_FIELD(orderClause); WRITE_INT_FIELD(frameOptions); + WRITE_NODE_FIELD(startOffset); + WRITE_NODE_FIELD(endOffset); WRITE_LOCATION_FIELD(location); } |