Update copyrights to 2003.

[pg-rex/syncrep.git] / src / include / parser / parsetree.h

diff --git a/src/include/parser/parsetree.h b/src/include/parser/parsetree.h
index a28520f..a172b25 100644 (file)
--- a/src/include/parser/parsetree.h
+++ b/src/include/parser/parsetree.h
@@ -5,64 +5,54 @@
  *       parse trees.
  *
  *
- * Copyright (c) 1994, Regents of the University of California
+ * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: parsetree.h,v 1.6 1999/02/13 23:21:57 momjian Exp $
+ * $Id: parsetree.h,v 1.21 2003/08/04 02:40:14 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
 #ifndef PARSETREE_H
-#define PARSETREE_H                            /* include once only */
+#define PARSETREE_H
+
+#include "nodes/parsenodes.h"
+#include "nodes/pg_list.h"             /* for nth(), etc */
 
-/* ----------------
- *             need pg_list.h for definitions of CAR(), etc. macros
- * ----------------
- */
 
 /* ----------------
  *             range table macros
- *
- *     parse tree:
- *             (root targetlist qual)
- *              ^^^^
- *     parse root:
- *             (numlevels cmdtype resrel rangetable priority ruleinfo nestdotinfo)
- *                                                               ^^^^^^^^^^
- *     range table:
- *             (rtentry ...)
- *     rtentry:
  * ----------------
  */
 
-#define rt_relname(rt_entry) \
-         ((!strcmp(((rt_entry)->refname),"*CURRENT*") ||\
-               !strcmp(((rt_entry)->refname),"*NEW*")) ? ((rt_entry)->refname) : \
-               ((char *)(rt_entry)->relname))
-
 /*
  *             rt_fetch
- *             rt_store
- *
- *             Access and (destructively) replace rangetable entries.
  *
+ * NB: this will crash and burn if handed an out-of-range RT index
  */
 #define rt_fetch(rangetable_index, rangetable) \
-       ((RangeTblEntry*)nth((rangetable_index)-1, rangetable))
-
-#define rt_store(rangetable_index, rangetable, rt) \
-       set_nth(rangetable, (rangetable_index)-1, rt)
+       ((RangeTblEntry *) nth((rangetable_index)-1, rangetable))
 
 /*
  *             getrelid
- *             getrelname
  *
  *             Given the range index of a relation, return the corresponding
- *             relation id or relation name.
+ *             relation OID.  Note that InvalidOid will be returned if the
+ *             RTE is for a non-relation-type RTE.
  */
 #define getrelid(rangeindex,rangetable) \
-       ((RangeTblEntry*)nth((rangeindex)-1, rangetable))->relid
+       (rt_fetch(rangeindex, rangetable)->relid)
+
+/*
+ * Given an RTE and an attribute number, return the appropriate
+ * variable name or alias for that attribute of that RTE.
+ */
+extern char *get_rte_attribute_name(RangeTblEntry *rte, AttrNumber attnum);
 
-#define getrelname(rangeindex, rangetable) \
-       rt_relname((RangeTblEntry*)nth((rangeindex)-1, rangetable))
+/*
+ * Given an RTE and an attribute number, return the appropriate
+ * type and typemod info for that attribute of that RTE.
+ */
+extern void get_rte_attribute_type(RangeTblEntry *rte, AttrNumber attnum,
+                                          Oid *vartype, int32 *vartypmod);
 
-#endif  /* PARSETREE_H */
+#endif   /* PARSETREE_H */