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Subselects in FROM clause, per ISO syntax: FROM (SELECT ...) [AS] alias.

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(Don't forget that an alias is required.)  Views reimplemented as expanding
to subselect-in-FROM.  Grouping, aggregates, DISTINCT in views actually
work now (he says optimistically).  No UNION support in subselects/views
yet, but I have some ideas about that.  Rule-related permissions checking
moved out of rewriter and into executor.
INITDB REQUIRED!
This commit is contained in:
Tom Lane
2000-09-29 18:21:41 +00:00
parent 6f64c2e54a
commit 3a94e789f5
77 changed files with 3176 additions and 2661 deletions
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10
src/include/optimizer/pathnode.h
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@@ -1,13 +1,13 @@
/*-------------------------------------------------------------------------
*
* pathnode.h
* prototypes for pathnode.c, indexnode.c, relnode.c.
* prototypes for pathnode.c, relnode.c.
*
*
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pathnode.h,v 1.28 2000/09/12 21:07:11 tgl Exp $
* $Id: pathnode.h,v 1.29 2000/09/29 18:21:40 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -32,6 +32,7 @@ extern IndexPath *create_index_path(Query *root, RelOptInfo *rel,
List *restriction_clauses,
ScanDirection indexscandir);
extern TidPath *create_tidscan_path(RelOptInfo *rel, List *tideval);
extern Path *create_subqueryscan_path(RelOptInfo *rel);
extern NestPath *create_nestloop_path(RelOptInfo *joinrel,
JoinType jointype,
@@ -66,9 +67,4 @@ extern RelOptInfo *get_join_rel(Query *root, RelOptInfo *outer_rel,
RelOptInfo *inner_rel,
List **restrictlist_ptr);
/*
* prototypes for indexnode.h
*/
extern List *find_relation_indices(Query *root, RelOptInfo *rel);
#endif /* PATHNODE_H */