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New comment. This func/column things has always confused me.

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/*
 *  parse function
 *  This code is confusing because the database can accept
 *  relation.column, column.function, or relation.column.function.
 *  In these cases, funcname is the last parameter, and fargs are
 *  the rest.
 *
 *  It can also be called as func(col) or func(col,col).
 *  In this case, Funcname is the part before parens, and fargs
 *  are the part in parens.
 *
 */
Node *
ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
                  bool agg_star, bool agg_distinct,
                  int precedence)
This commit is contained in:
Bruce Momjian
2001-05-19 00:33:20 +00:00
parent f61d70c2ac
commit 5ec8474323
3 changed files with 20 additions and 16 deletions
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4
src/include/parser/parse_func.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: parse_func.h,v 1.30 2001/05/18 22:35:51 momjian Exp $
* $Id: parse_func.h,v 1.31 2001/05/19 00:33:20 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -40,7 +40,7 @@ typedef struct _CandidateList
extern Node *ParseNestedFuncOrColumn(ParseState *pstate, Attr *attr,
int precedence);
extern Node *ParseColumnOrFunc(ParseState *pstate,
extern Node *ParseFuncOrColumn(ParseState *pstate,
char *funcname, List *fargs,
bool agg_star, bool agg_distinct,
int precedence);