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| 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/include/parser | |
| parent | 2c93861f7cef99b4613abd37ed7e4c15a95754b4 (diff) | |
| download | postgresql-e649796f128bd8702ba5744d36f4e8cb81f0b754.tar.gz postgresql-e649796f128bd8702ba5744d36f4e8cb81f0b754.zip | |
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/include/parser')
| -rw-r--r-- | src/include/parser/parse_agg.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/include/parser/parse_agg.h b/src/include/parser/parse_agg.h index 111d726bc9c..bc1e601cc22 100644 --- a/src/include/parser/parse_agg.h +++ b/src/include/parser/parse_agg.h @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: parse_agg.h,v 1.25 2003/01/17 03:25:04 tgl Exp $ + * $Id: parse_agg.h,v 1.26 2003/06/06 15:04:03 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -15,6 +15,8 @@ #include "parser/parse_node.h" +extern void transformAggregateCall(ParseState *pstate, Aggref *agg); + extern void parseCheckAggregates(ParseState *pstate, Query *qry); #endif /* PARSE_AGG_H */ |