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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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5
src/include/parser/parse_func.h
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@ -7,7 +7,7 @@
* 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_func.h,v 1.62 2008/12/18 18:20:35 tgl Exp $
* $PostgreSQL: pgsql/src/include/parser/parse_func.h,v 1.63 2008/12/28 18:54:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -37,6 +37,7 @@ typedef enum
FUNCDETAIL_MULTIPLE, /* too many matching functions */
FUNCDETAIL_NORMAL, /* found a matching regular function */
FUNCDETAIL_AGGREGATE, /* found a matching aggregate function */
FUNCDETAIL_WINDOWFUNC, /* found a matching window function */
FUNCDETAIL_COERCION /* it's a type coercion request */
} FuncDetailCode;
@ -44,7 +45,7 @@ typedef enum
extern Node *ParseFuncOrColumn(ParseState *pstate,
List *funcname, List *fargs,
bool agg_star, bool agg_distinct, bool func_variadic,
bool is_column, int location);
WindowDef *over, bool is_column, int location);
extern FuncDetailCode func_get_detail(List *funcname, List *fargs,
int nargs, Oid *argtypes,