diff options
Diffstat (limited to 'src/include/nodes/parsenodes.h')
| -rw-r--r-- | src/include/nodes/parsenodes.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index bcff7aa3006..df0cb5c4e54 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -6,7 +6,7 @@ * * Copyright (c) 1994, Regents of the University of California * - * $Id: parsenodes.h,v 1.89 1999/12/10 03:56:09 momjian Exp $ + * $Id: parsenodes.h,v 1.90 1999/12/10 07:37:32 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -758,6 +758,10 @@ typedef struct SelectStmt /**************************************************************************** * Supporting data structures for Parse Trees + * + * Most of these node types appear in raw parsetrees output by the grammar, + * and get transformed to something else by the analyzer. A few of them + * are used as-is in transformed querytrees. ****************************************************************************/ /* @@ -889,13 +893,20 @@ typedef struct Ident } Ident; /* - * FuncCall - a function/aggregate invocation + * FuncCall - a function or aggregate invocation + * + * agg_star indicates we saw a 'foo(*)' construct, while agg_distinct + * indicates we saw 'foo(DISTINCT ...)'. In either case, the construct + * *must* be an aggregate call. Otherwise, it might be either an + * aggregate or some other kind of function. */ typedef struct FuncCall { NodeTag type; char *funcname; /* name of function */ List *args; /* the arguments (list of exprs) */ + bool agg_star; /* argument was really '*' */ + bool agg_distinct; /* arguments were labeled DISTINCT */ } FuncCall; /* |