diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2003-06-06 15:04:03 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2003-06-06 15:04:03 +0000 |
| commit | e649796f128bd8702ba5744d36f4e8cb81f0b754 (patch) | |
| tree | 050eda51ad8f0298731316ccf61db2c01a2863a3 /src/backend/nodes/copyfuncs.c | |
| parent | 2c93861f7cef99b4613abd37ed7e4c15a95754b4 (diff) | |
Implement outer-level aggregates to conform to the SQL spec, with
extensions to support our historical behavior. An aggregate belongs
to the closest query level of any of the variables in its argument,
or the current query level if there are no variables (e.g., COUNT(*)).
The implementation involves adding an agglevelsup field to Aggref,
and treating outer aggregates like outer variables at planning time.
Diffstat (limited to 'src/backend/nodes/copyfuncs.c')
| -rw-r--r-- | src/backend/nodes/copyfuncs.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c index 4a5f858d7b0..12b82fc5bcb 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 - * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.251 2003/05/28 16:03:56 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.252 2003/06/06 15:04:02 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -725,6 +725,7 @@ _copyAggref(Aggref *from) COPY_SCALAR_FIELD(aggfnoid); COPY_SCALAR_FIELD(aggtype); COPY_NODE_FIELD(target); + COPY_SCALAR_FIELD(agglevelsup); COPY_SCALAR_FIELD(aggstar); COPY_SCALAR_FIELD(aggdistinct); |