From 2f63232d30ca64a8f2684af855230f23a701d371 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Mon, 10 May 2004 22:44:49 +0000 Subject: Promote row expressions to full-fledged citizens of the expression syntax, rather than allowing them only in a few special cases as before. In particular you can now pass a ROW() construct to a function that accepts a rowtype parameter. Internal generation of RowExprs fixes a number of corner cases that used to not work very well, such as referencing the whole-row result of a JOIN or subquery. This represents a further step in the work I started a month or so back to make rowtype values into first-class citizens. --- src/include/nodes/execnodes.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'src/include/nodes/execnodes.h') diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h index 8a0fbf7be0f..325bf876800 100644 --- a/src/include/nodes/execnodes.h +++ b/src/include/nodes/execnodes.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/nodes/execnodes.h,v 1.115 2004/04/01 21:28:46 tgl Exp $ + * $PostgreSQL: pgsql/src/include/nodes/execnodes.h,v 1.116 2004/05/10 22:44:49 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -613,6 +613,17 @@ typedef struct ArrayExprState char elemalign; /* typalign of the element type */ } ArrayExprState; +/* ---------------- + * RowExprState node + * ---------------- + */ +typedef struct RowExprState +{ + ExprState xprstate; + List *args; /* the arguments */ + TupleDesc tupdesc; /* descriptor for result tuples */ +} RowExprState; + /* ---------------- * CoalesceExprState node * ---------------- -- cgit v1.2.3