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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2008-12-31 00:08:39 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2008-12-31 00:08:39 +0000 |
| commit | 8e8854daa2b4b3ef9e3fc1a56c79608a70018058 (patch) | |
| tree | a6c4cf4b43acc764a38071843c10dc3edb3ca32e /src/backend/nodes/copyfuncs.c | |
| parent | 0fb9be7acfb31ba38c1bbdd7883d5d03f6e261e5 (diff) | |
| download | postgresql-8e8854daa2b4b3ef9e3fc1a56c79608a70018058.tar.gz | |
Add some basic support for window frame clauses to the window-functions
patch. This includes the ability to force the frame to cover the whole
partition, and the ability to make the frame end exactly on the current row
rather than its last ORDER BY peer. Supporting any more of the full SQL
frame-clause syntax will require nontrivial hacking on the window aggregate
code, so it'll have to wait for 8.5 or beyond.
Diffstat (limited to 'src/backend/nodes/copyfuncs.c')
| -rw-r--r-- | src/backend/nodes/copyfuncs.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c index 412fd96e5b..8f2f7696bc 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 1.417 2008/12/28 18:53:55 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.418 2008/12/31 00:08:35 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -678,6 +678,7 @@ _copyWindowAgg(WindowAgg *from) CopyPlanFields((Plan *) from, (Plan *) newnode); + COPY_SCALAR_FIELD(winref); COPY_SCALAR_FIELD(partNumCols); if (from->partNumCols > 0) { @@ -690,6 +691,7 @@ _copyWindowAgg(WindowAgg *from) COPY_POINTER_FIELD(ordColIdx, from->ordNumCols * sizeof(AttrNumber)); COPY_POINTER_FIELD(ordOperators, from->ordNumCols * sizeof(Oid)); } + COPY_SCALAR_FIELD(frameOptions); return newnode; } @@ -1783,6 +1785,7 @@ _copyWindowClause(WindowClause *from) COPY_STRING_FIELD(refname); COPY_NODE_FIELD(partitionClause); COPY_NODE_FIELD(orderClause); + COPY_SCALAR_FIELD(frameOptions); COPY_SCALAR_FIELD(winref); COPY_SCALAR_FIELD(copiedOrder); @@ -2010,6 +2013,7 @@ _copyWindowDef(WindowDef *from) COPY_STRING_FIELD(refname); COPY_NODE_FIELD(partitionClause); COPY_NODE_FIELD(orderClause); + COPY_SCALAR_FIELD(frameOptions); COPY_LOCATION_FIELD(location); return newnode; |