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First phase of SCHEMA changes, concentrating on fixing the grammar and

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the parsetree representation.  As yet we don't *do* anything with schema
names, just drop 'em on the floor; but you can enter schema-compatible
command syntax, and there's even a primitive CREATE SCHEMA command.
No doc updates yet, except to note that you can now extract a field
from a function-returning-row's result with (foo(...)).fieldname.
This commit is contained in:
Tom Lane
2002-03-21 16:02:16 +00:00
parent 8c9c8ca2b5
commit 95ef6a3448
52 changed files with 2039 additions and 1535 deletions
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28
src/backend/commands/view.c
View File

@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: view.c,v 1.58 2001/10/25 05:49:26 momjian Exp $
* $Id: view.c,v 1.59 2002/03/21 16:00:36 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -41,6 +41,7 @@ static void
DefineVirtualRelation(char *relname, List *tlist)
{
CreateStmt *createStmt = makeNode(CreateStmt);
RangeVar *rel = makeNode(RangeVar);
List *attrList,
*t;
@ -83,11 +84,13 @@ DefineVirtualRelation(char *relname, List *tlist)
* now create the parameters for keys/inheritance etc. All of them are
* nil...
*/
createStmt->relname = relname;
rel->relname = relname;
rel->schemaname = NULL; /* XXX wrong */
rel->istemp = false;
createStmt->relation = rel;
createStmt->tableElts = attrList;
createStmt->inhRelnames = NIL;
createStmt->inhRelations = NIL;
createStmt->constraints = NIL;
createStmt->istemp = false;
createStmt->hasoids = false;
/*
@ -101,21 +104,24 @@ FormViewRetrieveRule(char *viewName, Query *viewParse)
{
RuleStmt *rule;
char *rname;
Attr *attr;
RangeVar *rel;
/*
* Create a RuleStmt that corresponds to the suitable rewrite rule
* args for DefineQueryRewrite();
*/
rule = makeNode(RuleStmt);
rname = MakeRetrieveViewRuleName(viewName);
attr = makeNode(Attr);
attr->relname = pstrdup(viewName);
rel = makeNode(RangeVar);
rel->relname = pstrdup(viewName);
rel->inhOpt = INH_NO;
rel->alias = NULL;
rule = makeNode(RuleStmt);
rule->relation = rel;
rule->rulename = pstrdup(rname);
rule->whereClause = NULL;
rule->event = CMD_SELECT;
rule->object = attr;
rule->instead = true;
rule->actions = makeList1(viewParse);
@ -191,10 +197,10 @@ UpdateRangeTableOfViewParse(char *viewName, Query *viewParse)
* table... OLD first, then NEW....
*/
rt_entry1 = addRangeTableEntry(NULL, viewName,
makeAttr("*OLD*", NULL),
makeAlias("*OLD*", NIL),
false, false);
rt_entry2 = addRangeTableEntry(NULL, viewName,
makeAttr("*NEW*", NULL),
makeAlias("*NEW*", NIL),
false, false);
/* Must override addRangeTableEntry's default access-check flags */
rt_entry1->checkForRead = false;