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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2000-09-29 18:21:41 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2000-09-29 18:21:41 +0000 |
| commit | 3a94e789f5c9537d804210be3cb26f7fb08e3b9e (patch) | |
| tree | f1eac12405e3c0ded881d7dd7e59cec35b30c335 /src/backend/executor/execAmi.c | |
| parent | 6f64c2e54a0b14154a335249f4dca91a39c61c50 (diff) | |
| download | postgresql-3a94e789f5c9537d804210be3cb26f7fb08e3b9e.tar.gz postgresql-3a94e789f5c9537d804210be3cb26f7fb08e3b9e.zip | |
Subselects in FROM clause, per ISO syntax: FROM (SELECT ...) [AS] alias.
(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!
Diffstat (limited to 'src/backend/executor/execAmi.c')
| -rw-r--r-- | src/backend/executor/execAmi.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/src/backend/executor/execAmi.c b/src/backend/executor/execAmi.c index 99d6b7b27be..31ad291236b 100644 --- a/src/backend/executor/execAmi.c +++ b/src/backend/executor/execAmi.c @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2000, PostgreSQL, Inc * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: execAmi.c,v 1.51 2000/08/03 19:19:30 tgl Exp $ + * $Id: execAmi.c,v 1.52 2000/09/29 18:21:28 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -44,6 +44,7 @@ #include "executor/nodeSeqscan.h" #include "executor/nodeSort.h" #include "executor/nodeSubplan.h" +#include "executor/nodeSubqueryscan.h" #include "executor/nodeUnique.h" static Pointer ExecBeginScan(Relation relation, int nkeys, ScanKey skeys, @@ -304,6 +305,14 @@ ExecReScan(Plan *node, ExprContext *exprCtxt, Plan *parent) ExecIndexReScan((IndexScan *) node, exprCtxt, parent); break; + case T_TidScan: + ExecTidReScan((TidScan *) node, exprCtxt, parent); + break; + + case T_SubqueryScan: + ExecSubqueryReScan((SubqueryScan *) node, exprCtxt, parent); + break; + case T_Material: ExecMaterialReScan((Material *) node, exprCtxt, parent); break; @@ -348,10 +357,6 @@ ExecReScan(Plan *node, ExprContext *exprCtxt, Plan *parent) ExecReScanAppend((Append *) node, exprCtxt, parent); break; - case T_TidScan: - ExecTidReScan((TidScan *) node, exprCtxt, parent); - break; - default: elog(ERROR, "ExecReScan: node type %d not supported", nodeTag(node)); |