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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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10
src/backend/commands/functioncmds.c
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@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/functioncmds.c,v 1.103 2008/12/18 18:20:33 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/functioncmds.c,v 1.104 2008/12/28 18:53:55 tgl Exp $
*
* DESCRIPTION
* These routines take the parse tree and pick out the
@ -321,6 +321,10 @@ examine_parameter_list(List *parameters, Oid languageOid,
ereport(ERROR,
(errcode(ERRCODE_GROUPING_ERROR),
errmsg("cannot use aggregate function in parameter default value")));
if (pstate->p_hasWindowFuncs)
ereport(ERROR,
(errcode(ERRCODE_WINDOWING_ERROR),
errmsg("cannot use window function in parameter default value")));
*parameterDefaults = lappend(*parameterDefaults, def);
have_defaults = true;
@ -1538,6 +1542,10 @@ CreateCast(CreateCastStmt *stmt)
ereport(ERROR,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("cast function must not be an aggregate function")));
if (procstruct->proiswindow)
ereport(ERROR,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
errmsg("cast function must not be a window function")));
if (procstruct->proretset)
ereport(ERROR,
(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),