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Support window functions a la SQL:2008.

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Hitoshi Harada, with some kibitzing from Heikki and Tom.
This commit is contained in:
Tom Lane
2008-12-28 18:54:01 +00:00
parent 38e9348282
commit 95b07bc7f5
92 changed files with 6720 additions and 321 deletions
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7
src/include/parser/parse_agg.h
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@@ -1,12 +1,12 @@
/*-------------------------------------------------------------------------
*
* parse_agg.h
* handle aggregates in parser
* handle aggregates and window functions in parser
*
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/parser/parse_agg.h,v 1.36 2008/01/01 19:45:58 momjian Exp $
* $PostgreSQL: pgsql/src/include/parser/parse_agg.h,v 1.37 2008/12/28 18:54:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -16,8 +16,11 @@
#include "parser/parse_node.h"
extern void transformAggregateCall(ParseState *pstate, Aggref *agg);
extern void transformWindowFuncCall(ParseState *pstate, WindowFunc *wfunc,
WindowDef *windef);
extern void parseCheckAggregates(ParseState *pstate, Query *qry);
extern void parseCheckWindowFuncs(ParseState *pstate, Query *qry);
extern void build_aggregate_fnexprs(Oid *agg_input_types,
int agg_num_inputs,