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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/backend/parser/parse_utilcmd.c
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@ -19,7 +19,7 @@
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/parser/parse_utilcmd.c,v 2.18 2008/12/06 23:22:46 momjian Exp $
* $PostgreSQL: pgsql/src/backend/parser/parse_utilcmd.c,v 2.19 2008/12/28 18:53:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -391,6 +391,7 @@ transformColumnDefinition(ParseState *pstate, CreateStmtContext *cxt,
funccallnode->agg_star = false;
funccallnode->agg_distinct = false;
funccallnode->func_variadic = false;
funccallnode->over = NULL;
funccallnode->location = -1;
constraint = makeNode(Constraint);
@ -1471,6 +1472,10 @@ transformRuleStmt(RuleStmt *stmt, const char *queryString,
ereport(ERROR,
(errcode(ERRCODE_GROUPING_ERROR),
errmsg("cannot use aggregate function in rule WHERE condition")));
if (pstate->p_hasWindowFuncs)
ereport(ERROR,
(errcode(ERRCODE_WINDOWING_ERROR),
errmsg("cannot use window function in rule WHERE condition")));
/*
* 'instead nothing' rules with a qualification need a query rangetable so