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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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12
src/backend/parser/parse_expr.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/parse_expr.c,v 1.237 2008/10/26 02:46:25 tgl Exp $
* $PostgreSQL: pgsql/src/backend/parser/parse_expr.c,v 1.238 2008/12/28 18:53:58 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -286,6 +286,7 @@ transformExpr(ParseState *pstate, Node *expr)
case T_Const:
case T_Param:
case T_Aggref:
case T_WindowFunc:
case T_ArrayRef:
case T_FuncExpr:
case T_OpExpr:
@ -361,7 +362,7 @@ transformIndirection(ParseState *pstate, Node *basenode, List *indirection)
list_make1(n),
list_make1(result),
false, false, false,
true, -1);
NULL, true, -1);
}
}
/* process trailing subscripts, if any */
@ -505,7 +506,7 @@ transformColumnRef(ParseState *pstate, ColumnRef *cref)
list_make1(makeString(name2)),
list_make1(node),
false, false, false,
true, cref->location);
NULL, true, cref->location);
}
break;
}
@ -546,7 +547,7 @@ transformColumnRef(ParseState *pstate, ColumnRef *cref)
list_make1(makeString(name3)),
list_make1(node),
false, false, false,
true, cref->location);
NULL, true, cref->location);
}
break;
}
@ -601,7 +602,7 @@ transformColumnRef(ParseState *pstate, ColumnRef *cref)
list_make1(makeString(name4)),
list_make1(node),
false, false, false,
true, cref->location);
NULL, true, cref->location);
}
break;
}
@ -1108,6 +1109,7 @@ transformFuncCall(ParseState *pstate, FuncCall *fn)
fn->agg_star,
fn->agg_distinct,
fn->func_variadic,
fn->over,
false,
fn->location);
}