diff options
Diffstat (limited to 'src/include/nodes/primnodes.h')
| -rw-r--r-- | src/include/nodes/primnodes.h | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/src/include/nodes/primnodes.h b/src/include/nodes/primnodes.h index c2aabaffe6a..43e4d5a41e2 100644 --- a/src/include/nodes/primnodes.h +++ b/src/include/nodes/primnodes.h @@ -10,7 +10,7 @@ * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: primnodes.h,v 1.57 2001/11/05 17:46:34 momjian Exp $ + * $Id: primnodes.h,v 1.58 2002/03/12 00:52:02 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -513,10 +513,9 @@ typedef struct RangeTblRef * alias has a critical impact on semantics, because a join with an alias * restricts visibility of the tables/columns inside it. * - * During parse analysis, colnames is filled with a list of String nodes - * giving the column names (real or alias) of the output of the join, - * and colvars is filled with a list of expressions that can be copied to - * reference the output columns. + * During parse analysis, an RTE is created for the Join, and its index + * is filled into rtindex. This RTE is present mainly so that Vars can + * be created that refer to the outputs of the join. *---------- */ typedef struct JoinExpr @@ -529,9 +528,7 @@ typedef struct JoinExpr List *using; /* USING clause, if any (list of String) */ Node *quals; /* qualifiers on join, if any */ struct Attr *alias; /* user-written alias clause, if any */ - List *colnames; /* output column names (list of String) */ - List *colvars; /* output column nodes (list of - * expressions) */ + int rtindex; /* RT index assigned for join */ } JoinExpr; /*---------- |