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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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5
src/include/optimizer/paths.h
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@@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: paths.h,v 1.47 2000/09/12 21:07:11 tgl Exp $
* $Id: paths.h,v 1.48 2000/09/29 18:21:40 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -28,6 +28,7 @@ extern bool enable_geqo;
extern int geqo_rels;
extern RelOptInfo *make_one_rel(Query *root);
extern RelOptInfo *make_fromexpr_rel(Query *root, FromExpr *from);
/*
* indxpath.c
@@ -77,7 +78,7 @@ extern List *make_rels_by_clause_joins(Query *root,
extern List *make_rels_by_clauseless_joins(Query *root,
RelOptInfo *old_rel,
List *other_rels);
extern RelOptInfo *make_rel_from_jointree(Query *root, Node *jtnode);
extern RelOptInfo *make_jointree_rel(Query *root, Node *jtnode);
/*
* pathkeys.c