<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/func.sgml,v 1.94 2002/03/22 19:20:09 petere Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/func.sgml,v 1.95 2002/04/18 20:01:08 tgl Exp $
PostgreSQL documentation
-->
<entry>Get CREATE VIEW command for view</>
</row>
<row>
- <entry><function>pg_get_ruledef</>(<parameter>rulename</parameter>)</entry>
+ <entry><function>pg_get_viewdef</>(<parameter>viewOID</parameter>)</entry>
+ <entry><type>text</></entry>
+ <entry>Get CREATE VIEW command for view</>
+ </row>
+ <row>
+ <entry><function>pg_get_ruledef</>(<parameter>ruleOID</parameter>)</entry>
<entry><type>text</></entry>
<entry>Get CREATE RULE command for rule</>
</row>
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/comment.sgml,v 1.15 2002/03/19 02:18:12 momjian Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/comment.sgml,v 1.16 2002/04/18 20:01:09 tgl Exp $
PostgreSQL documentation
-->
<synopsis>
COMMENT ON
[
- [ DATABASE | DOMAIN | INDEX | RULE | SEQUENCE | TABLE | TYPE | VIEW ] <replaceable class="PARAMETER">object_name</replaceable> |
+ [ DATABASE | DOMAIN | INDEX | SEQUENCE | TABLE | TYPE | VIEW ] <replaceable class="PARAMETER">object_name</replaceable> |
COLUMN <replaceable class="PARAMETER">table_name</replaceable>.<replaceable class="PARAMETER">column_name</replaceable> |
AGGREGATE <replaceable class="PARAMETER">agg_name</replaceable> (<replaceable class="PARAMETER">agg_type</replaceable>) |
FUNCTION <replaceable class="PARAMETER">func_name</replaceable> (<replaceable class="PARAMETER">arg1</replaceable>, <replaceable class="PARAMETER">arg2</replaceable>, ...) |
OPERATOR <replaceable class="PARAMETER">op</replaceable> (<replaceable class="PARAMETER">leftoperand_type</replaceable> <replaceable class="PARAMETER">rightoperand_type</replaceable>) |
+ RULE <replaceable class="PARAMETER">rule_name</replaceable> ON <replaceable class="PARAMETER">table_name</replaceable> |
TRIGGER <replaceable class="PARAMETER">trigger_name</replaceable> ON <replaceable class="PARAMETER">table_name</replaceable>
] IS <replaceable class="PARAMETER">'text'</replaceable>
</synopsis>
<variablelist>
<varlistentry>
<term><replaceable class="PARAMETER">object_name, table_name,
- column_name, agg_name, func_name, op, trigger_name</replaceable></term>
+ column_name, agg_name, func_name, op, rule_name, trigger_name</replaceable></term>
<listitem>
<para>
The name of the object to be be commented.
COMMENT ON DATABASE my_database IS 'Development Database';
COMMENT ON DOMAIN my_domain IS 'Email Address Domain';
COMMENT ON INDEX my_index IS 'Enforces uniqueness on employee id';
-COMMENT ON RULE my_rule IS 'Logs UPDATES of employee records';
COMMENT ON SEQUENCE my_sequence IS 'Used to generate primary keys';
COMMENT ON TABLE my_table IS 'Employee Information';
COMMENT ON TYPE my_type IS 'Complex Number support';
COMMENT ON AGGREGATE my_aggregate (double precision) IS 'Computes sample variance';
COMMENT ON FUNCTION my_function (timestamp) IS 'Returns Roman Numeral';
COMMENT ON OPERATOR ^ (text, text) IS 'Performs intersection of two text';
+COMMENT ON RULE my_rule ON my_table IS 'Logs UPDATES of employee records';
COMMENT ON TRIGGER my_trigger ON my_table IS 'Used for R.I.';
</programlisting>
</para>
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_rule.sgml,v 1.11 2001/12/08 03:24:36 thomas Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_rule.sgml,v 1.12 2002/04/18 20:01:09 tgl Exp $
PostgreSQL documentation
-->
<date>1998-09-22</date>
</refsynopsisdivinfo>
<synopsis>
-DROP RULE <replaceable class="PARAMETER">name</replaceable> [, ...]
+DROP RULE <replaceable class="PARAMETER">name</replaceable> ON <replaceable class="PARAMETER">relation</replaceable>
</synopsis>
<refsect2 id="R2-SQL-DROPRULE-1">
</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><replaceable class="parameter">relation</replaceable></term>
+ <listitem>
+ <para>
+ The name of the relation the rule applies to.
+ </para>
+ </listitem>
+ </varlistentry>
</variablelist>
</para>
</refsect2>
</varlistentry>
<varlistentry>
<term><computeroutput>
-ERROR: Rule or view "<replaceable class="parameter">name</replaceable>" not found
+ERROR: Rule "<replaceable class="parameter">name</replaceable>" not found
</computeroutput></term>
<listitem>
<para>
Refer to <command>CREATE RULE</command> for
information on how to create rules.
</para>
-
- <para>
- Once a rule is dropped, access to historical information
- the rule has written may disappear.
- </para>
</refsect2>
</refsect1>
To drop the rewrite rule <literal>newrule</literal>:
<programlisting>
-DROP RULE newrule;
+DROP RULE newrule ON mytable;
</programlisting>
</para>
</refsect1>
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.132 2002/04/10 22:46:48 petere Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.133 2002/04/18 20:01:08 tgl Exp $
-->
<appendix id="release">
worries about funny characters.
-->
<literallayout><![CDATA[
+Rule names are now per-relation, not global; DROP RULE and COMMENT ON RULE syntax changes accordingly
Readline and Zlib are now required by default and must be turned off explicitly if their use is not desired
Define a third class of function volatility to allow indexscans in more cases
Locale support is now built by default; choice of locale is set by initdb and/or at run-time
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/catalog/indexing.c,v 1.90 2002/04/17 20:57:56 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/catalog/indexing.c,v 1.91 2002/04/18 20:01:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
char *Name_pg_relcheck_indices[Num_pg_relcheck_indices] =
{RelCheckIndex};
char *Name_pg_rewrite_indices[Num_pg_rewrite_indices] =
-{RewriteOidIndex, RewriteRulenameIndex};
+{RewriteOidIndex, RewriteRelRulenameIndex};
char *Name_pg_shadow_indices[Num_pg_shadow_indices] =
{ShadowNameIndex, ShadowSysidIndex};
char *Name_pg_statistic_indices[Num_pg_statistic_indices] =
* Copyright (c) 1999-2001, PostgreSQL Global Development Group
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/commands/comment.c,v 1.41 2002/04/16 23:08:10 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/commands/comment.c,v 1.42 2002/04/18 20:01:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
* CommentRule --
*
* This routine is used to add/drop any user-comments a user might
- * have regarding a specified RULE. The rule is specified by name
- * and, if found, and the user has appropriate permissions, a
- * comment will be added/dropped using the CreateComments() routine.
+ * have regarding a specified RULE. The rule for commenting is determined by
+ * both its name and the relation to which it refers. The arguments to this
+ * function are the rule name and relation name (merged into a qualified
+ * name), and the comment to add/drop.
+ *
+ * Before PG 7.3, rules had unique names across the whole database, and so
+ * the syntax was just COMMENT ON RULE rulename, with no relation name.
+ * For purposes of backwards compatibility, we support that as long as there
+ * is only one rule by the specified name in the database.
*/
static void
CommentRule(List *qualname, char *comment)
{
- char *rule;
+ int nnames;
+ List *relname;
+ char *rulename;
+ RangeVar *rel;
+ Relation relation;
HeapTuple tuple;
Oid reloid;
Oid ruleoid;
Oid classoid;
int32 aclcheck;
- /* XXX this is gonna change soon */
- if (length(qualname) != 1)
- elog(ERROR, "CommentRule: rule name may not be qualified");
- rule = strVal(lfirst(qualname));
-
- /* Find the rule's pg_rewrite tuple, get its OID and its table's OID */
+ /* Separate relname and trig name */
+ nnames = length(qualname);
+ if (nnames == 1)
+ {
+ /* Old-style: only a rule name is given */
+ Relation RewriteRelation;
+ HeapScanDesc scanDesc;
+ ScanKeyData scanKeyData;
+
+ rulename = strVal(lfirst(qualname));
+
+ /* Search pg_rewrite for such a rule */
+ ScanKeyEntryInitialize(&scanKeyData,
+ 0,
+ Anum_pg_rewrite_rulename,
+ F_NAMEEQ,
+ PointerGetDatum(rulename));
+
+ RewriteRelation = heap_openr(RewriteRelationName, AccessShareLock);
+ scanDesc = heap_beginscan(RewriteRelation,
+ 0, SnapshotNow, 1, &scanKeyData);
+
+ tuple = heap_getnext(scanDesc, 0);
+ if (HeapTupleIsValid(tuple))
+ {
+ reloid = ((Form_pg_rewrite) GETSTRUCT(tuple))->ev_class;
+ ruleoid = tuple->t_data->t_oid;
+ }
+ else
+ {
+ elog(ERROR, "rule '%s' does not exist", rulename);
+ reloid = ruleoid = 0; /* keep compiler quiet */
+ }
- tuple = SearchSysCache(RULENAME,
- PointerGetDatum(rule),
- 0, 0, 0);
- if (!HeapTupleIsValid(tuple))
- elog(ERROR, "rule '%s' does not exist", rule);
+ if (HeapTupleIsValid(tuple = heap_getnext(scanDesc, 0)))
+ elog(ERROR, "There are multiple rules '%s'"
+ "\n\tPlease specify a relation name as well as a rule name",
+ rulename);
- reloid = ((Form_pg_rewrite) GETSTRUCT(tuple))->ev_class;
- ruleoid = tuple->t_data->t_oid;
+ heap_endscan(scanDesc);
+ heap_close(RewriteRelation, AccessShareLock);
- ReleaseSysCache(tuple);
+ /* Open the owning relation to ensure it won't go away meanwhile */
+ relation = heap_open(reloid, AccessShareLock);
+ }
+ else
+ {
+ /* New-style: rule and relname both provided */
+ Assert(nnames >= 2);
+ relname = ltruncate(nnames-1, listCopy(qualname));
+ rulename = strVal(nth(nnames-1, qualname));
+
+ /* Open the owning relation to ensure it won't go away meanwhile */
+ rel = makeRangeVarFromNameList(relname);
+ relation = heap_openrv(rel, AccessShareLock);
+ reloid = RelationGetRelid(relation);
+
+ /* Find the rule's pg_rewrite tuple, get its OID */
+ tuple = SearchSysCache(RULERELNAME,
+ ObjectIdGetDatum(reloid),
+ PointerGetDatum(rulename),
+ 0, 0);
+ if (!HeapTupleIsValid(tuple))
+ elog(ERROR, "rule '%s' does not exist", rulename);
+ Assert(reloid == ((Form_pg_rewrite) GETSTRUCT(tuple))->ev_class);
+ ruleoid = tuple->t_data->t_oid;
+ ReleaseSysCache(tuple);
+ }
/* Check object security */
aclcheck = pg_class_aclcheck(reloid, GetUserId(), ACL_RULE);
if (aclcheck != ACLCHECK_OK)
elog(ERROR, "you are not permitted to comment on rule '%s'",
- rule);
+ rulename);
/* pg_rewrite doesn't have a hard-coded OID, so must look it up */
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/commands/tablecmds.c,v 1.2 2002/04/15 23:45:07 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/commands/tablecmds.c,v 1.3 2002/04/18 20:01:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
Relation ridescs[Num_pg_class_indices];
Oid toast_relid;
Oid toast_idxid;
- char toast_relname[NAMEDATALEN + 1];
- char toast_idxname[NAMEDATALEN + 1];
+ char toast_relname[NAMEDATALEN];
+ char toast_idxname[NAMEDATALEN];
IndexInfo *indexInfo;
Oid classObjectId[2];
Oid
DefineRelation(CreateStmt *stmt, char relkind)
{
- char *relname = palloc(NAMEDATALEN);
+ char relname[NAMEDATALEN];
Oid namespaceId;
List *schema = stmt->tableElts;
int numberOfAttributes;
* Truncate relname to appropriate length (probably a waste of time,
* as parser should have done this already).
*/
- StrNCpy(relname, (stmt->relation)->relname, NAMEDATALEN);
+ StrNCpy(relname, stmt->relation->relname, NAMEDATALEN);
/*
* Look up the namespace in which we are supposed to create the
0, 0))
elog(ERROR, "renameatt: attribute \"%s\" exists", newattname);
- StrNCpy(NameStr(((Form_pg_attribute) GETSTRUCT(atttup))->attname),
- newattname, NAMEDATALEN);
+ namestrcpy(&(((Form_pg_attribute) GETSTRUCT(atttup))->attname),
+ newattname);
simple_heap_update(attrelation, &atttup->t_self, atttup);
/*
* Update the (copied) attribute tuple.
*/
- StrNCpy(NameStr(((Form_pg_attribute) GETSTRUCT(atttup))->attname),
- newattname, NAMEDATALEN);
+ namestrcpy(&(((Form_pg_attribute) GETSTRUCT(atttup))->attname),
+ newattname);
simple_heap_update(attrelation, &atttup->t_self, atttup);
Relation relrelation; /* for RELATION relation */
HeapTuple reltup;
Oid namespaceId;
+ char *oldrelname;
char relkind;
bool relhastriggers;
Relation irelations[Num_pg_class_indices];
*/
targetrelation = relation_open(relid, AccessExclusiveLock);
+ oldrelname = pstrdup(RelationGetRelationName(targetrelation));
namespaceId = RelationGetNamespace(targetrelation);
/* Validity checks */
if (!allowSystemTableMods &&
IsSystemRelation(targetrelation))
elog(ERROR, "renamerel: system relation \"%s\" may not be renamed",
- RelationGetRelationName(targetrelation));
+ oldrelname);
relkind = targetrelation->rd_rel->relkind;
relhastriggers = (targetrelation->rd_rel->reltriggers > 0);
0, 0, 0);
if (!HeapTupleIsValid(reltup))
elog(ERROR, "renamerel: relation \"%s\" does not exist",
- RelationGetRelationName(targetrelation));
+ oldrelname);
if (get_relname_relid(newrelname, namespaceId) != InvalidOid)
elog(ERROR, "renamerel: relation \"%s\" exists", newrelname);
* Update pg_class tuple with new relname. (Scribbling on reltup is
* OK because it's a copy...)
*/
- StrNCpy(NameStr(((Form_pg_class) GETSTRUCT(reltup))->relname),
- newrelname, NAMEDATALEN);
+ namestrcpy(&(((Form_pg_class) GETSTRUCT(reltup))->relname), newrelname);
simple_heap_update(relrelation, &reltup->t_self, reltup);
* Also rename the associated type, if any.
*/
if (relkind != RELKIND_INDEX)
- TypeRename(RelationGetRelationName(targetrelation), namespaceId,
- newrelname);
+ TypeRename(oldrelname, namespaceId, newrelname);
/*
* If it's a view, must also rename the associated ON SELECT rule.
char *oldrulename,
*newrulename;
- oldrulename = MakeRetrieveViewRuleName(RelationGetRelationName(targetrelation));
+ oldrulename = MakeRetrieveViewRuleName(oldrelname);
newrulename = MakeRetrieveViewRuleName(newrelname);
- RenameRewriteRule(oldrulename, newrulename);
+ RenameRewriteRule(relid, oldrulename, newrulename);
}
/*
{
/* update tgargs where relname is primary key */
update_ri_trigger_args(relid,
- RelationGetRelationName(targetrelation),
+ oldrelname,
newrelname,
false, true);
/* update tgargs where relname is foreign key */
update_ri_trigger_args(relid,
- RelationGetRelationName(targetrelation),
+ oldrelname,
newrelname,
true, true);
}
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.179 2002/04/17 20:57:56 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.180 2002/04/18 20:01:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
return newnode;
}
-static DropTrigStmt *
-_copyDropTrigStmt(DropTrigStmt *from)
+static DropPropertyStmt *
+_copyDropPropertyStmt(DropPropertyStmt *from)
{
- DropTrigStmt *newnode = makeNode(DropTrigStmt);
+ DropPropertyStmt *newnode = makeNode(DropPropertyStmt);
- if (from->trigname)
- newnode->trigname = pstrdup(from->trigname);
Node_Copy(from, newnode, relation);
+ if (from->property)
+ newnode->property = pstrdup(from->property);
+ newnode->removeType = from->removeType;
return newnode;
}
case T_CreateTrigStmt:
retval = _copyCreateTrigStmt(from);
break;
- case T_DropTrigStmt:
- retval = _copyDropTrigStmt(from);
+ case T_DropPropertyStmt:
+ retval = _copyDropPropertyStmt(from);
break;
case T_CreatePLangStmt:
retval = _copyCreatePLangStmt(from);
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.127 2002/04/17 20:57:56 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.128 2002/04/18 20:01:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
}
static bool
-_equalDropTrigStmt(DropTrigStmt *a, DropTrigStmt *b)
+_equalDropPropertyStmt(DropPropertyStmt *a, DropPropertyStmt *b)
{
- if (!equalstr(a->trigname, b->trigname))
- return false;
if (!equal(a->relation, b->relation))
return false;
+ if (!equalstr(a->property, b->property))
+ return false;
+ if (a->removeType != b->removeType)
+ return false;
return true;
}
case T_CreateTrigStmt:
retval = _equalCreateTrigStmt(a, b);
break;
- case T_DropTrigStmt:
- retval = _equalDropTrigStmt(a, b);
+ case T_DropPropertyStmt:
+ retval = _equalDropPropertyStmt(a, b);
break;
case T_CreatePLangStmt:
retval = _equalCreatePLangStmt(a, b);
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.303 2002/04/17 20:57:56 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.304 2002/04/18 20:01:09 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
CreateSchemaStmt, CreateSeqStmt, CreateStmt, CreateTrigStmt,
CreateUserStmt, CreatedbStmt, CursorStmt, DefineStmt, DeleteStmt,
DropGroupStmt, DropPLangStmt, DropSchemaStmt, DropStmt, DropTrigStmt,
- DropUserStmt, DropdbStmt, ExplainStmt, FetchStmt,
+ DropRuleStmt, DropUserStmt, DropdbStmt, ExplainStmt, FetchStmt,
GrantStmt, IndexStmt, InsertStmt, ListenStmt, LoadStmt, LockStmt,
NotifyStmt, OptimizableStmt, ProcedureStmt, ReindexStmt,
RemoveAggrStmt, RemoveFuncStmt, RemoveOperStmt,
| DropGroupStmt
| DropPLangStmt
| DropTrigStmt
+ | DropRuleStmt
| DropUserStmt
| ExplainStmt
| FetchStmt
DropTrigStmt: DROP TRIGGER name ON qualified_name
{
- DropTrigStmt *n = makeNode(DropTrigStmt);
- n->trigname = $3;
+ DropPropertyStmt *n = makeNode(DropPropertyStmt);
n->relation = $5;
+ n->property = $3;
+ n->removeType = DROP_TRIGGER;
$$ = (Node *) n;
}
;
| SEQUENCE { $$ = DROP_SEQUENCE; }
| VIEW { $$ = DROP_VIEW; }
| INDEX { $$ = DROP_INDEX; }
- | RULE { $$ = DROP_RULE; }
| TYPE_P { $$ = DROP_TYPE; }
| DOMAIN_P { $$ = DROP_DOMAIN; }
;
* The COMMENT ON statement can take different forms based upon the type of
* the object associated with the comment. The form of the statement is:
*
- * COMMENT ON [ [ DATABASE | DOMAIN | INDEX | RULE | SEQUENCE | TABLE | TYPE | VIEW ]
+ * COMMENT ON [ [ DATABASE | DOMAIN | INDEX | SEQUENCE | TABLE | TYPE | VIEW ]
* <objname> | AGGREGATE <aggname> (<aggtype>) | FUNCTION
* <funcname> (arg1, arg2, ...) | OPERATOR <op>
* (leftoperand_typ rightoperand_typ) | TRIGGER <triggername> ON
- * <relname> ] IS 'text'
+ * <relname> | RULE <rulename> ON <relname> ] IS 'text'
*
*****************************************************************************/
n->comment = $8;
$$ = (Node *) n;
}
+ | COMMENT ON RULE name ON any_name IS comment_text
+ {
+ CommentStmt *n = makeNode(CommentStmt);
+ n->objtype = RULE;
+ n->objname = lappend($6, makeString($4));
+ n->objargs = NIL;
+ n->comment = $8;
+ $$ = (Node *) n;
+ }
+ | COMMENT ON RULE name IS comment_text
+ {
+ /* Obsolete syntax supported for awhile for compatibility */
+ CommentStmt *n = makeNode(CommentStmt);
+ n->objtype = RULE;
+ n->objname = makeList1(makeString($4));
+ n->objargs = NIL;
+ n->comment = $6;
+ $$ = (Node *) n;
+ }
;
comment_type: COLUMN { $$ = COLUMN; }
| DATABASE { $$ = DATABASE; }
| INDEX { $$ = INDEX; }
- | RULE { $$ = RULE; }
| SEQUENCE { $$ = SEQUENCE; }
| TABLE { $$ = TABLE; }
| DOMAIN_P { $$ = TYPE_P; }
;
+DropRuleStmt: DROP RULE name ON qualified_name
+ {
+ DropPropertyStmt *n = makeNode(DropPropertyStmt);
+ n->relation = $5;
+ n->property = $3;
+ n->removeType = DROP_RULE;
+ $$ = (Node *) n;
+ }
+ ;
+
+
/*****************************************************************************
*
* QUERY:
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteDefine.c,v 1.66 2002/03/26 19:16:02 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteDefine.c,v 1.67 2002/04/18 20:01:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
/*
* InsertRule -
- * takes the arguments and inserts them as attributes into the system
+ * takes the arguments and inserts them as a row into the system
* relation "pg_rewrite"
*/
static Oid
HeapTuple tup;
Oid rewriteObjectId;
- if (IsDefinedRewriteRule(rulname))
+ if (IsDefinedRewriteRule(eventrel_oid, rulname))
elog(ERROR, "Attempt to insert rule \"%s\" failed: already exists",
rulname);
i = 0;
namestrcpy(&rname, rulname);
- values[i++] = NameGetDatum(&rname);
- values[i++] = CharGetDatum(evtype + '0');
- values[i++] = ObjectIdGetDatum(eventrel_oid);
- values[i++] = Int16GetDatum(evslot_index);
- values[i++] = BoolGetDatum(evinstead);
- values[i++] = DirectFunctionCall1(textin, CStringGetDatum(evqual));
- values[i++] = DirectFunctionCall1(textin, CStringGetDatum(actiontree));
+ values[i++] = NameGetDatum(&rname); /* rulename */
+ values[i++] = ObjectIdGetDatum(eventrel_oid); /* ev_class */
+ values[i++] = Int16GetDatum(evslot_index); /* ev_attr */
+ values[i++] = CharGetDatum(evtype + '0'); /* ev_type */
+ values[i++] = BoolGetDatum(evinstead); /* is_instead */
+ values[i++] = DirectFunctionCall1(textin, CStringGetDatum(evqual)); /* ev_qual */
+ values[i++] = DirectFunctionCall1(textin, CStringGetDatum(actiontree)); /* ev_action */
/*
* create a new pg_rewrite tuple
* ON SELECT rule associated with a view, when the view is renamed.
*/
void
-RenameRewriteRule(char *oldname, char *newname)
+RenameRewriteRule(Oid owningRel, const char *oldName,
+ const char *newName)
{
Relation pg_rewrite_desc;
HeapTuple ruletup;
pg_rewrite_desc = heap_openr(RewriteRelationName, RowExclusiveLock);
- ruletup = SearchSysCacheCopy(RULENAME,
- PointerGetDatum(oldname),
- 0, 0, 0);
+ ruletup = SearchSysCacheCopy(RULERELNAME,
+ ObjectIdGetDatum(owningRel),
+ PointerGetDatum(oldName),
+ 0, 0);
if (!HeapTupleIsValid(ruletup))
- elog(ERROR, "RenameRewriteRule: rule \"%s\" does not exist", oldname);
+ elog(ERROR, "RenameRewriteRule: rule \"%s\" does not exist", oldName);
/* should not already exist */
- if (IsDefinedRewriteRule(newname))
+ if (IsDefinedRewriteRule(owningRel, newName))
elog(ERROR, "Attempt to rename rule \"%s\" failed: \"%s\" already exists",
- oldname, newname);
+ oldName, newName);
- StrNCpy(NameStr(((Form_pg_rewrite) GETSTRUCT(ruletup))->rulename),
- newname, NAMEDATALEN);
+ namestrcpy(&(((Form_pg_rewrite) GETSTRUCT(ruletup))->rulename), newName);
simple_heap_update(pg_rewrite_desc, &ruletup->t_self, ruletup);
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteRemove.c,v 1.47 2002/03/29 19:06:13 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteRemove.c,v 1.48 2002/04/18 20:01:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
-#include "utils/builtins.h"
+#include "access/genam.h"
#include "access/heapam.h"
#include "catalog/catname.h"
+#include "catalog/indexing.h"
#include "catalog/pg_rewrite.h"
#include "commands/comment.h"
#include "miscadmin.h"
/*
* RemoveRewriteRule
*
- * Delete a rule given its (possibly qualified) rulename.
+ * Delete a rule given its name.
*/
void
-RemoveRewriteRule(List *names)
+RemoveRewriteRule(Oid owningRel, const char *ruleName)
{
- char *ruleName;
Relation RewriteRelation;
Relation event_relation;
HeapTuple tuple;
bool hasMoreRules;
int32 aclcheck_result;
- /*
- * XXX temporary until rules become schema-tized
- */
- if (length(names) != 1)
- elog(ERROR, "Qualified rule names not supported yet");
- ruleName = strVal(lfirst(names));
-
/*
* Open the pg_rewrite relation.
*/
/*
* Find the tuple for the target rule.
*/
- tuple = SearchSysCacheCopy(RULENAME,
+ tuple = SearchSysCacheCopy(RULERELNAME,
+ ObjectIdGetDatum(owningRel),
PointerGetDatum(ruleName),
- 0, 0, 0);
+ 0, 0);
/*
* complain if no rule with such name existed
*/
ruleId = tuple->t_data->t_oid;
eventRelationOid = ((Form_pg_rewrite) GETSTRUCT(tuple))->ev_class;
+ Assert(eventRelationOid == owningRel);
/*
* We had better grab AccessExclusiveLock so that we know no other
void
RelationRemoveRules(Oid relid)
{
- Relation RewriteRelation = NULL;
- HeapScanDesc scanDesc = NULL;
+ Relation RewriteRelation;
+ SysScanDesc scanDesc;
ScanKeyData scanKeyData;
- HeapTuple tuple = NULL;
+ HeapTuple tuple;
/*
* Open the pg_rewrite relation.
RewriteRelation = heap_openr(RewriteRelationName, RowExclusiveLock);
/*
- * Scan the RuleRelation ('pg_rewrite') for all the tuples that has
- * the same ev_class as relid (the relation to be removed).
+ * Scan pg_rewrite for all the tuples that have the same ev_class
+ * as relid (the relation to be removed).
*/
ScanKeyEntryInitialize(&scanKeyData,
0,
Anum_pg_rewrite_ev_class,
F_OIDEQ,
ObjectIdGetDatum(relid));
- scanDesc = heap_beginscan(RewriteRelation,
- 0, SnapshotNow, 1, &scanKeyData);
- while (HeapTupleIsValid(tuple = heap_getnext(scanDesc, 0)))
+ scanDesc = systable_beginscan(RewriteRelation,
+ RewriteRelRulenameIndex,
+ true, SnapshotNow,
+ 1, &scanKeyData);
+
+ while (HeapTupleIsValid(tuple = systable_getnext(scanDesc)))
{
/* Delete any comments associated with this rule */
DeleteComments(tuple->t_data->t_oid, RelationGetRelid(RewriteRelation));
simple_heap_delete(RewriteRelation, &tuple->t_self);
}
- heap_endscan(scanDesc);
+ systable_endscan(scanDesc);
+
heap_close(RewriteRelation, RowExclusiveLock);
}
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteSupport.c,v 1.49 2001/08/12 21:35:19 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteSupport.c,v 1.50 2002/04/18 20:01:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
* Is there a rule by the given name?
*/
bool
-IsDefinedRewriteRule(const char *ruleName)
+IsDefinedRewriteRule(Oid owningRel, const char *ruleName)
{
- return SearchSysCacheExists(RULENAME,
+ return SearchSysCacheExists(RULERELNAME,
+ ObjectIdGetDatum(owningRel),
PointerGetDatum(ruleName),
- 0, 0, 0);
+ 0, 0);
}
/*
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.260 2002/03/24 04:31:07 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.261 2002/04/18 20:01:09 tgl Exp $
*
* NOTES
* this is the "main" module of the postgres backend and
if (!IsUnderPostmaster)
{
puts("\nPOSTGRES backend interactive interface ");
- puts("$Revision: 1.260 $ $Date: 2002/03/24 04:31:07 $\n");
+ puts("$Revision: 1.261 $ $Date: 2002/04/18 20:01:09 $\n");
}
/*
tag = "CREATE";
break;
- case T_DropTrigStmt:
+ case T_DropPropertyStmt:
tag = "DROP";
break;
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.149 2002/04/15 05:22:04 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.150 2002/04/18 20:01:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
RemoveIndex(rel);
break;
- case DROP_RULE:
- /* RemoveRewriteRule checks permissions */
- RemoveRewriteRule(names);
- break;
-
case DROP_TYPE:
/* RemoveType does its own permissions checks */
RemoveType(names);
CreateTrigger((CreateTrigStmt *) parsetree);
break;
- case T_DropTrigStmt:
+ case T_DropPropertyStmt:
{
- DropTrigStmt *stmt = (DropTrigStmt *) parsetree;
+ DropPropertyStmt *stmt = (DropPropertyStmt *) parsetree;
+ Oid relId;
- DropTrigger(RangeVarGetRelid(stmt->relation, false),
- stmt->trigname);
+ relId = RangeVarGetRelid(stmt->relation, false);
+
+ switch (stmt->removeType)
+ {
+ case DROP_RULE:
+ /* RemoveRewriteRule checks permissions */
+ RemoveRewriteRule(relId, stmt->property);
+ break;
+ case DROP_TRIGGER:
+ /* DropTrigger checks permissions */
+ DropTrigger(relId, stmt->property);
+ break;
+ }
}
break;
* back to source text
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.96 2002/04/11 20:00:04 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.97 2002/04/18 20:01:09 tgl Exp $
*
* This software is copyrighted by Jan Wieck - Hamburg.
*
#include "catalog/heap.h"
#include "catalog/index.h"
+#include "catalog/namespace.h"
#include "catalog/pg_index.h"
#include "catalog/pg_opclass.h"
#include "catalog/pg_operator.h"
* Global data
* ----------
*/
-static char *rulename = NULL;
-static void *plan_getrule = NULL;
-static char *query_getrule = "SELECT * FROM pg_rewrite WHERE rulename = $1";
-static void *plan_getview = NULL;
-static char *query_getview = "SELECT * FROM pg_rewrite WHERE rulename = $1";
+static void *plan_getrulebyoid = NULL;
+static char *query_getrulebyoid = "SELECT * FROM pg_rewrite WHERE oid = $1";
+static void *plan_getviewrule = NULL;
+static char *query_getviewrule = "SELECT * FROM pg_rewrite WHERE ev_class = $1 AND rulename = $2";
/* ----------
* as a parameter, and append their text output to its contents.
* ----------
*/
+static text *pg_do_getviewdef(Oid viewoid);
static void make_ruledef(StringInfo buf, HeapTuple ruletup, TupleDesc rulettc);
static void make_viewdef(StringInfo buf, HeapTuple ruletup, TupleDesc rulettc);
static void get_query_def(Query *query, StringInfo buf, List *parentnamespace);
Datum
pg_get_ruledef(PG_FUNCTION_ARGS)
{
- Name rname = PG_GETARG_NAME(0);
+ Oid ruleoid = PG_GETARG_OID(0);
text *ruledef;
Datum args[1];
- char nulls[2];
+ char nulls[1];
int spirc;
HeapTuple ruletup;
TupleDesc rulettc;
StringInfoData buf;
int len;
- /*
- * We need the rules name somewhere deep down: rulename is global
- */
- rulename = pstrdup(NameStr(*rname));
-
/*
* Connect to SPI manager
*/
* pg_rewrite over the SPI manager instead of using the syscache to be
* checked for read access on pg_rewrite.
*/
- if (plan_getrule == NULL)
+ if (plan_getrulebyoid == NULL)
{
Oid argtypes[1];
void *plan;
- argtypes[0] = NAMEOID;
- plan = SPI_prepare(query_getrule, 1, argtypes);
+ argtypes[0] = OIDOID;
+ plan = SPI_prepare(query_getrulebyoid, 1, argtypes);
if (plan == NULL)
- elog(ERROR, "SPI_prepare() failed for \"%s\"", query_getrule);
- plan_getrule = SPI_saveplan(plan);
+ elog(ERROR, "SPI_prepare() failed for \"%s\"", query_getrulebyoid);
+ plan_getrulebyoid = SPI_saveplan(plan);
}
/*
* Get the pg_rewrite tuple for this rule
*/
- args[0] = PointerGetDatum(rulename);
- nulls[0] = (rulename == NULL) ? 'n' : ' ';
- nulls[1] = '\0';
- spirc = SPI_execp(plan_getrule, args, nulls, 1);
+ args[0] = ObjectIdGetDatum(ruleoid);
+ nulls[0] = ' ';
+ spirc = SPI_execp(plan_getrulebyoid, args, nulls, 1);
if (spirc != SPI_OK_SELECT)
- elog(ERROR, "failed to get pg_rewrite tuple for %s", rulename);
+ elog(ERROR, "failed to get pg_rewrite tuple for %u", ruleoid);
if (SPI_processed != 1)
{
if (SPI_finish() != SPI_OK_FINISH)
Datum
pg_get_viewdef(PG_FUNCTION_ARGS)
{
- Name vname = PG_GETARG_NAME(0);
+ /* By OID */
+ Oid viewoid = PG_GETARG_OID(0);
text *ruledef;
- Datum args[1];
- char nulls[1];
+
+ ruledef = pg_do_getviewdef(viewoid);
+ PG_RETURN_TEXT_P(ruledef);
+}
+
+Datum
+pg_get_viewdef_name(PG_FUNCTION_ARGS)
+{
+ /* By qualified name */
+ text *viewname = PG_GETARG_TEXT_P(0);
+ RangeVar *viewrel;
+ Oid viewoid;
+ text *ruledef;
+
+ viewrel = makeRangeVarFromNameList(textToQualifiedNameList(viewname,
+ "get_viewdef"));
+ viewoid = RangeVarGetRelid(viewrel, false);
+
+ ruledef = pg_do_getviewdef(viewoid);
+ PG_RETURN_TEXT_P(ruledef);
+}
+
+/*
+ * Common code for by-OID and by-name variants of pg_get_viewdef
+ */
+static text *
+pg_do_getviewdef(Oid viewoid)
+{
+ text *ruledef;
+ Datum args[2];
+ char nulls[2];
int spirc;
HeapTuple ruletup;
TupleDesc rulettc;
StringInfoData buf;
int len;
+ char *viewname;
char *name;
- /*
- * We need the view name somewhere deep down
- */
- rulename = pstrdup(NameStr(*vname));
-
/*
* Connect to SPI manager
*/
* pg_rewrite over the SPI manager instead of using the syscache to be
* checked for read access on pg_rewrite.
*/
- if (plan_getview == NULL)
+ if (plan_getviewrule == NULL)
{
- Oid argtypes[1];
+ Oid argtypes[2];
void *plan;
- argtypes[0] = NAMEOID;
- plan = SPI_prepare(query_getview, 1, argtypes);
+ argtypes[0] = OIDOID;
+ argtypes[1] = NAMEOID;
+ plan = SPI_prepare(query_getviewrule, 2, argtypes);
if (plan == NULL)
- elog(ERROR, "SPI_prepare() failed for \"%s\"", query_getview);
- plan_getview = SPI_saveplan(plan);
+ elog(ERROR, "SPI_prepare() failed for \"%s\"", query_getviewrule);
+ plan_getviewrule = SPI_saveplan(plan);
}
/*
- * Get the pg_rewrite tuple for this rule: rulename is actually
- * viewname here
+ * Get the pg_rewrite tuple for the view's SELECT rule
*/
- name = MakeRetrieveViewRuleName(rulename);
- args[0] = PointerGetDatum(name);
+ viewname = get_rel_name(viewoid);
+ name = MakeRetrieveViewRuleName(viewname);
+ args[0] = ObjectIdGetDatum(viewoid);
+ args[1] = PointerGetDatum(name);
nulls[0] = ' ';
- spirc = SPI_execp(plan_getview, args, nulls, 1);
+ nulls[1] = ' ';
+ spirc = SPI_execp(plan_getviewrule, args, nulls, 2);
if (spirc != SPI_OK_SELECT)
- elog(ERROR, "failed to get pg_rewrite tuple for view %s", rulename);
+ elog(ERROR, "failed to get pg_rewrite tuple for view %s", viewname);
initStringInfo(&buf);
if (SPI_processed != 1)
appendStringInfo(&buf, "Not a view");
if (SPI_finish() != SPI_OK_FINISH)
elog(ERROR, "get_viewdef: SPI_finish() failed");
- /*
- * Easy - isn't it?
- */
- PG_RETURN_TEXT_P(ruledef);
+ return ruledef;
}
context.namespaces = dpcontext;
context.varprefix = forceprefix;
- rulename = ""; /* in case of errors */
-
get_rule_expr(expr, &context);
return buf.data;
static void
make_ruledef(StringInfo buf, HeapTuple ruletup, TupleDesc rulettc)
{
+ char *rulename;
char ev_type;
Oid ev_class;
int2 ev_attr;
char *ev_action;
List *actions = NIL;
int fno;
+ Datum dat;
bool isnull;
/*
* Get the attribute values from the rules tuple
*/
+ fno = SPI_fnumber(rulettc, "rulename");
+ dat = SPI_getbinval(ruletup, rulettc, fno, &isnull);
+ Assert(!isnull);
+ rulename = NameStr(*(DatumGetName(dat)));
+
fno = SPI_fnumber(rulettc, "ev_type");
- ev_type = (char) SPI_getbinval(ruletup, rulettc, fno, &isnull);
+ dat = SPI_getbinval(ruletup, rulettc, fno, &isnull);
+ Assert(!isnull);
+ ev_type = DatumGetChar(dat);
fno = SPI_fnumber(rulettc, "ev_class");
- ev_class = (Oid) SPI_getbinval(ruletup, rulettc, fno, &isnull);
+ dat = SPI_getbinval(ruletup, rulettc, fno, &isnull);
+ Assert(!isnull);
+ ev_class = DatumGetObjectId(dat);
fno = SPI_fnumber(rulettc, "ev_attr");
- ev_attr = (int2) SPI_getbinval(ruletup, rulettc, fno, &isnull);
+ dat = SPI_getbinval(ruletup, rulettc, fno, &isnull);
+ Assert(!isnull);
+ ev_attr = DatumGetInt16(dat);
fno = SPI_fnumber(rulettc, "is_instead");
- is_instead = (bool) SPI_getbinval(ruletup, rulettc, fno, &isnull);
+ dat = SPI_getbinval(ruletup, rulettc, fno, &isnull);
+ Assert(!isnull);
+ is_instead = DatumGetBool(dat);
+ /* these could be nulls */
fno = SPI_fnumber(rulettc, "ev_qual");
ev_qual = SPI_getvalue(ruletup, rulettc, fno);
break;
default:
- elog(ERROR, "get_ruledef of %s: query command type %d not implemented yet",
- rulename, query->commandType);
+ elog(ERROR, "get_query_def: unknown query command type %d",
+ query->commandType);
break;
}
}
break;
default:
- printf("\n%s\n", nodeToString(node));
- elog(ERROR, "get_ruledef of %s: unknown node type %d in get_rule_expr()",
- rulename, nodeTag(node));
+ elog(ERROR, "get_rule_expr: unknown node type %d", nodeTag(node));
break;
}
}
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/utils/cache/relcache.c,v 1.160 2002/04/12 20:38:29 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/cache/relcache.c,v 1.161 2002/04/18 20:01:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
/*
* open pg_rewrite and begin a scan
- *
- * XXX: there is no suitable index for this scan. FIXME.
*/
pg_rewrite_desc = heap_openr(RewriteRelationName, AccessShareLock);
pg_rewrite_tupdesc = RelationGetDescr(pg_rewrite_desc);
- pg_rewrite_scan = systable_beginscan(pg_rewrite_desc, NULL, false,
+ pg_rewrite_scan = systable_beginscan(pg_rewrite_desc,
+ RewriteRelRulenameIndex,
+ criticalRelcachesBuilt,
SnapshotNow,
1, &key);
while (HeapTupleIsValid(pg_rewrite_tuple = systable_getnext(pg_rewrite_scan)))
{
+ Form_pg_rewrite rewrite_form = (Form_pg_rewrite) GETSTRUCT(pg_rewrite_tuple);
bool isnull;
Datum ruleaction;
Datum rule_evqual;
rule->ruleId = pg_rewrite_tuple->t_data->t_oid;
- rule->event = DatumGetInt32(heap_getattr(pg_rewrite_tuple,
- Anum_pg_rewrite_ev_type,
- pg_rewrite_tupdesc,
- &isnull)) - 48;
- rule->attrno = DatumGetInt16(heap_getattr(pg_rewrite_tuple,
- Anum_pg_rewrite_ev_attr,
- pg_rewrite_tupdesc,
- &isnull));
- rule->isInstead = DatumGetBool(heap_getattr(pg_rewrite_tuple,
- Anum_pg_rewrite_is_instead,
- pg_rewrite_tupdesc,
- &isnull));
+ rule->event = rewrite_form->ev_type - '0';
+ rule->attrno = rewrite_form->ev_attr;
+ rule->isInstead = rewrite_form->is_instead;
+
+ /* Must use heap_getattr to fetch ev_qual and ev_action */
ruleaction = heap_getattr(pg_rewrite_tuple,
Anum_pg_rewrite_ev_action,
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/utils/cache/syscache.c,v 1.78 2002/04/17 20:57:56 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/cache/syscache.c,v 1.79 2002/04/18 20:01:10 tgl Exp $
*
* NOTES
* These routines allow the parser/planner/executor to perform
0,
0
}},
- {RewriteRelationName, /* RULENAME */
- RewriteRulenameIndex,
+ {RewriteRelationName, /* RULERELNAME */
+ RewriteRelRulenameIndex,
Anum_pg_rewrite_ev_class,
- 1,
+ 2,
{
+ Anum_pg_rewrite_ev_class,
Anum_pg_rewrite_rulename,
0,
- 0,
0
}},
{ShadowRelationName, /* SHADOWNAME */
# Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
# Portions Copyright (c) 1994, Regents of the University of California
#
-# $Header: /cvsroot/pgsql/src/bin/initdb/Attic/initdb.sh,v 1.148 2002/04/15 22:33:21 tgl Exp $
+# $Header: /cvsroot/pgsql/src/bin/initdb/Attic/initdb.sh,v 1.149 2002/04/18 20:01:10 tgl Exp $
#
#-------------------------------------------------------------------------
CREATE VIEW pg_rules AS \
SELECT \
+ N.nspname AS schemaname, \
C.relname AS tablename, \
R.rulename AS rulename, \
- pg_get_ruledef(R.rulename) AS definition \
- FROM pg_rewrite R, pg_class C \
- WHERE R.rulename !~ '^_RET' \
- AND C.oid = R.ev_class;
+ pg_get_ruledef(R.oid) AS definition \
+ FROM (pg_rewrite R JOIN pg_class C ON (C.oid = R.ev_class)) \
+ LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace) \
+ WHERE R.rulename !~ '^_RET';
CREATE VIEW pg_views AS \
SELECT \
+ N.nspname AS schemaname, \
C.relname AS viewname, \
pg_get_userbyid(C.relowner) AS viewowner, \
- pg_get_viewdef(C.relname) AS definition \
- FROM pg_class C \
+ pg_get_viewdef(C.oid) AS definition \
+ FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace) \
WHERE C.relkind = 'v';
-- XXX why does pg_tables include sequences?
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dump.c,v 1.248 2002/04/13 19:57:18 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dump.c,v 1.249 2002/04/18 20:01:10 tgl Exp $
*
*-------------------------------------------------------------------------
*/
PGresult *res2;
resetPQExpBuffer(query);
- appendPQExpBuffer(query, "SELECT definition as viewdef, ");
- /*
- * XXX 7.2 - replace with att from pg_views or some other
- * generic source
- */
- appendPQExpBuffer(query, "(select oid from pg_rewrite where "
- " rulename=('_RET' || viewname)::name) as view_oid"
- " from pg_views where viewname = ");
- formatStringLiteral(query, tblinfo[i].relname, CONV_ALL);
- appendPQExpBuffer(query, ";");
+ if (g_fout->remoteVersion < 70300)
+ {
+ appendPQExpBuffer(query, "SELECT definition as viewdef, "
+ "(select oid from pg_rewrite where "
+ " rulename=('_RET' || viewname)::name) as view_oid"
+ " from pg_views where viewname = ");
+ formatStringLiteral(query, tblinfo[i].relname, CONV_ALL);
+ appendPQExpBuffer(query, ";");
+ }
+ else
+ {
+ /* Beginning in 7.3, viewname is not unique; use OID */
+ appendPQExpBuffer(query, "SELECT pg_get_viewdef(ev_class) as viewdef, "
+ "oid as view_oid"
+ " from pg_rewrite where"
+ " ev_class = '%s'::oid and"
+ " rulename = ('_RET' || ",
+ tblinfo[i].oid);
+ formatStringLiteral(query, tblinfo[i].relname, CONV_ALL);
+ appendPQExpBuffer(query, ")::name;");
+ }
res2 = PQexec(g_conn, query->data);
if (!res2 || PQresultStatus(res2) != PGRES_TUPLES_OK)
continue;
/*
- * Get all rules defined for this table We include pg_rules in the
- * cross since it filters out all view rules (pjw 15-Sep-2000).
- *
- * XXXX: Use LOJ here
+ * Get all rules defined for this table
*/
resetPQExpBuffer(query);
- appendPQExpBuffer(query, "SELECT definition,"
- " (select usename from pg_user where pg_class.relowner = usesysid) AS viewowner, "
- " pg_rewrite.oid, pg_rewrite.rulename "
- "FROM pg_rewrite, pg_class, pg_rules "
- "WHERE pg_class.relname = ");
- formatStringLiteral(query, tblinfo[t].relname, CONV_ALL);
- appendPQExpBuffer(query,
- " AND pg_rewrite.ev_class = pg_class.oid "
- " AND pg_rules.tablename = pg_class.relname "
- " AND pg_rules.rulename = pg_rewrite.rulename "
- "ORDER BY pg_rewrite.oid");
+
+ if (g_fout->remoteVersion < 70300)
+ {
+ /*
+ * We include pg_rules in the cross since it filters out all view
+ * rules (pjw 15-Sep-2000).
+ */
+ appendPQExpBuffer(query, "SELECT definition,"
+ " (select usename from pg_user where pg_class.relowner = usesysid) AS viewowner, "
+ " pg_rewrite.oid, pg_rewrite.rulename "
+ "FROM pg_rewrite, pg_class, pg_rules "
+ "WHERE pg_class.relname = ");
+ formatStringLiteral(query, tblinfo[t].relname, CONV_ALL);
+ appendPQExpBuffer(query,
+ " AND pg_rewrite.ev_class = pg_class.oid "
+ " AND pg_rules.tablename = pg_class.relname "
+ " AND pg_rules.rulename = pg_rewrite.rulename "
+ "ORDER BY pg_rewrite.oid");
+ }
+ else
+ {
+ appendPQExpBuffer(query, "SELECT pg_get_ruledef(pg_rewrite.oid) AS definition,"
+ " (select usename from pg_user where pg_class.relowner = usesysid) AS viewowner, "
+ " pg_rewrite.oid, pg_rewrite.rulename "
+ "FROM pg_rewrite, pg_class "
+ "WHERE pg_class.oid = '%s'::oid "
+ " AND pg_rewrite.ev_class = pg_class.oid "
+ " AND pg_rewrite.rulename !~ '^_RET' "
+ "ORDER BY pg_rewrite.oid",
+ tblinfo[t].oid);
+ }
+
res = PQexec(g_conn, query->data);
if (!res ||
PQresultStatus(res) != PGRES_TUPLES_OK)
resetPQExpBuffer(query);
appendPQExpBuffer(query, "RULE %s", fmtId(PQgetvalue(res, i, i_rulename), force_quotes));
+ appendPQExpBuffer(query, " ON %s", fmtId(tblinfo[t].relname, force_quotes));
dumpComment(fout, query->data, PQgetvalue(res, i, i_oid),
"pg_rewrite", 0, NULL);
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: catversion.h,v 1.117 2002/04/17 20:57:56 tgl Exp $
+ * $Id: catversion.h,v 1.118 2002/04/18 20:01:10 tgl Exp $
*
*-------------------------------------------------------------------------
*/
*/
/* yyyymmddN */
-#define CATALOG_VERSION_NO 200204171
+#define CATALOG_VERSION_NO 200204181
#endif
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: indexing.h,v 1.64 2002/04/17 20:57:56 tgl Exp $
+ * $Id: indexing.h,v 1.65 2002/04/18 20:01:10 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#define ProcedureOidIndex "pg_proc_oid_index"
#define RelCheckIndex "pg_relcheck_rcrelid_index"
#define RewriteOidIndex "pg_rewrite_oid_index"
-#define RewriteRulenameIndex "pg_rewrite_rulename_index"
+#define RewriteRelRulenameIndex "pg_rewrite_rel_rulename_index"
#define ShadowNameIndex "pg_shadow_usename_index"
#define ShadowSysidIndex "pg_shadow_usesysid_index"
#define StatisticRelidAttnumIndex "pg_statistic_relid_att_index"
/* This following index is not used for a cache and is not unique */
DECLARE_INDEX(pg_relcheck_rcrelid_index on pg_relcheck using btree(rcrelid oid_ops));
DECLARE_UNIQUE_INDEX(pg_rewrite_oid_index on pg_rewrite using btree(oid oid_ops));
-DECLARE_UNIQUE_INDEX(pg_rewrite_rulename_index on pg_rewrite using btree(rulename name_ops));
+DECLARE_UNIQUE_INDEX(pg_rewrite_rel_rulename_index on pg_rewrite using btree(ev_class oid_ops, rulename name_ops));
DECLARE_UNIQUE_INDEX(pg_shadow_usename_index on pg_shadow using btree(usename name_ops));
DECLARE_UNIQUE_INDEX(pg_shadow_usesysid_index on pg_shadow using btree(usesysid int4_ops));
DECLARE_UNIQUE_INDEX(pg_statistic_relid_att_index on pg_statistic using btree(starelid oid_ops, staattnum int2_ops));
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: pg_proc.h,v 1.227 2002/04/11 20:00:12 tgl Exp $
+ * $Id: pg_proc.h,v 1.228 2002/04/18 20:01:10 tgl Exp $
*
* NOTES
* The script catalog/genbki.sh reads this file and generates .bki
DESCR("greater-than-or-equal");
/* System-view support functions */
-DATA(insert OID = 1640 ( pg_get_ruledef PGNSP PGUID 12 f t f t f s 1 25 "19" 100 0 0 100 pg_get_ruledef - _null_ ));
+DATA(insert OID = 1573 ( pg_get_ruledef PGNSP PGUID 12 f t f t f s 1 25 "26" 100 0 0 100 pg_get_ruledef - _null_ ));
DESCR("source text of a rule");
-DATA(insert OID = 1641 ( pg_get_viewdef PGNSP PGUID 12 f t f t f s 1 25 "19" 100 0 0 100 pg_get_viewdef - _null_ ));
+DATA(insert OID = 1640 ( pg_get_viewdef PGNSP PGUID 12 f t f t f s 1 25 "25" 100 0 0 100 pg_get_viewdef_name - _null_ ));
+DESCR("select statement of a view");
+DATA(insert OID = 1641 ( pg_get_viewdef PGNSP PGUID 12 f t f t f s 1 25 "26" 100 0 0 100 pg_get_viewdef - _null_ ));
DESCR("select statement of a view");
DATA(insert OID = 1642 ( pg_get_userbyid PGNSP PGUID 12 f t f t f s 1 19 "23" 100 0 0 100 pg_get_userbyid - _null_ ));
DESCR("user name by UID (with fallback)");
* definition of the system "rewrite-rule" relation (pg_rewrite)
* along with the relation's initial contents.
*
+ * As of Postgres 7.3, the primary key for this table is <ev_class, rulename>
+ * --- ie, rule names are only unique among the rules of a given table.
+ *
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: pg_rewrite.h,v 1.17 2001/11/05 17:46:32 momjian Exp $
+ * $Id: pg_rewrite.h,v 1.18 2002/04/18 20:01:11 tgl Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
CATALOG(pg_rewrite)
{
NameData rulename;
- char ev_type;
Oid ev_class;
int2 ev_attr;
+ char ev_type;
bool is_instead;
/* NB: remaining fields must be accessed via heap_getattr */
*/
#define Natts_pg_rewrite 7
#define Anum_pg_rewrite_rulename 1
-#define Anum_pg_rewrite_ev_type 2
-#define Anum_pg_rewrite_ev_class 3
-#define Anum_pg_rewrite_ev_attr 4
+#define Anum_pg_rewrite_ev_class 2
+#define Anum_pg_rewrite_ev_attr 3
+#define Anum_pg_rewrite_ev_type 4
#define Anum_pg_rewrite_is_instead 5
#define Anum_pg_rewrite_ev_qual 6
#define Anum_pg_rewrite_ev_action 7
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: nodes.h,v 1.104 2002/04/05 11:56:54 momjian Exp $
+ * $Id: nodes.h,v 1.105 2002/04/18 20:01:11 tgl Exp $
*
*-------------------------------------------------------------------------
*/
T_VariableShowStmt,
T_VariableResetStmt,
T_CreateTrigStmt,
- T_DropTrigStmt,
+ T_DropPropertyStmt,
T_CreatePLangStmt,
T_DropPLangStmt,
T_CreateUserStmt,
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: parsenodes.h,v 1.171 2002/04/17 20:57:57 tgl Exp $
+ * $Id: parsenodes.h,v 1.172 2002/04/18 20:01:11 tgl Exp $
*
*-------------------------------------------------------------------------
*/
RangeVar *constrrel; /* opposite relation */
} CreateTrigStmt;
-typedef struct DropTrigStmt
-{
- NodeTag type;
- char *trigname; /* TRIGGER' name */
- RangeVar *relation; /* triggered relation */
-} DropTrigStmt;
-
/* ----------------------
* Create/Drop PROCEDURAL LANGUAGE Statement
* ----------------------
} CreateDomainStmt;
/* ----------------------
- * Drop Table|Sequence|View|Index|Rule|Type Statement
+ * Drop Table|Sequence|View|Index|Type|Domain Statement
* ----------------------
*/
#define DROP_SEQUENCE 2
#define DROP_VIEW 3
#define DROP_INDEX 4
-#define DROP_RULE 5
-#define DROP_TYPE 6
-#define DROP_DOMAIN 7
+#define DROP_TYPE 5
+#define DROP_DOMAIN 6
typedef struct DropStmt
{
int behavior; /* CASCADE or RESTRICT drop behavior */
} DropStmt;
+/* ----------------------
+ * Drop Rule|Trigger Statement
+ *
+ * In general this may be used for dropping any property of a relation;
+ * for example, someday soon we may have DROP ATTRIBUTE.
+ * ----------------------
+ */
+
+#define DROP_RULE 100
+#define DROP_TRIGGER 101
+
+typedef struct DropPropertyStmt
+{
+ NodeTag type;
+ RangeVar *relation; /* owning relation */
+ char *property; /* name of rule, trigger, etc */
+ int removeType;
+} DropPropertyStmt;
+
/* ----------------------
* Truncate Table Statement
* ----------------------
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: rewriteDefine.h,v 1.13 2001/11/05 17:46:35 momjian Exp $
+ * $Id: rewriteDefine.h,v 1.14 2002/04/18 20:01:11 tgl Exp $
*
*-------------------------------------------------------------------------
*/
extern void DefineQueryRewrite(RuleStmt *args);
-extern void RenameRewriteRule(char *oldname, char *newname);
+extern void RenameRewriteRule(Oid owningRel, const char *oldName,
+ const char *newName);
#endif /* REWRITEDEFINE_H */
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: rewriteRemove.h,v 1.12 2002/03/29 19:06:26 tgl Exp $
+ * $Id: rewriteRemove.h,v 1.13 2002/04/18 20:01:11 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef REWRITEREMOVE_H
#define REWRITEREMOVE_H
-extern void RemoveRewriteRule(List *names);
+extern void RemoveRewriteRule(Oid owningRel, const char *ruleName);
extern void RelationRemoveRules(Oid relid);
#endif /* REWRITEREMOVE_H */
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: rewriteSupport.h,v 1.20 2001/11/05 17:46:35 momjian Exp $
+ * $Id: rewriteSupport.h,v 1.21 2002/04/18 20:01:11 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef REWRITESUPPORT_H
#define REWRITESUPPORT_H
-extern bool IsDefinedRewriteRule(const char *ruleName);
+extern bool IsDefinedRewriteRule(Oid owningRel, const char *ruleName);
extern char *MakeRetrieveViewRuleName(const char *view_name);
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: builtins.h,v 1.176 2002/04/11 20:00:17 tgl Exp $
+ * $Id: builtins.h,v 1.177 2002/04/18 20:01:11 tgl Exp $
*
*-------------------------------------------------------------------------
*/
/* ruleutils.c */
extern Datum pg_get_ruledef(PG_FUNCTION_ARGS);
extern Datum pg_get_viewdef(PG_FUNCTION_ARGS);
+extern Datum pg_get_viewdef_name(PG_FUNCTION_ARGS);
extern Datum pg_get_indexdef(PG_FUNCTION_ARGS);
extern Datum pg_get_userbyid(PG_FUNCTION_ARGS);
extern Datum pg_get_expr(PG_FUNCTION_ARGS);
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: syscache.h,v 1.46 2002/04/17 20:57:57 tgl Exp $
+ * $Id: syscache.h,v 1.47 2002/04/18 20:01:11 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#define PROCOID 21
#define RELNAMENSP 22
#define RELOID 23
-#define RULENAME 24
+#define RULERELNAME 24
#define SHADOWNAME 25
#define SHADOWSYSID 26
#define STATRELATT 27
drop rule 314159;
ERROR: parser: parse error at or near "314159"
-- no such rule
-drop rule nonesuch;
-ERROR: Rule "nonesuch" not found
+drop rule nonesuch on noplace;
+ERROR: Relation "noplace" does not exist
-- bad keyword
drop tuple rule nonesuch;
ERROR: parser: parse error at or near "tuple"
-- no such rule
-drop instance rule nonesuch;
+drop instance rule nonesuch on noplace;
ERROR: parser: parse error at or near "instance"
-- no such rule
drop rewrite rule nonesuch;
---+---+-------------------------------------
1 | 1 | rule 2 - this should run 1st
1 | 2 | rule 4 - this should run 2nd
- 1 | 3 | rule 3 - this should run 3rd or 4th
- 1 | 4 | rule 1 - this should run 3rd or 4th
+ 1 | 3 | rule 1 - this should run 3rd or 4th
+ 1 | 4 | rule 3 - this should run 3rd or 4th
(4 rows)
--
1001
(1 row)
-drop rule foorule;
+drop rule foorule on foo;
-- this should fail because f1 is not exposed for unqualified reference:
create rule foorule as on insert to foo where f1 < 100
do instead insert into foo2 values (f1);
2
(1 row)
-drop rule foorule;
+drop rule foorule on foo;
drop table foo;
drop table foo2;
--
2 | test2
(2 rows)
-drop rule rrule;
+drop rule rrule on vview;
drop view vview;
drop table pparent;
drop table cchild;
--------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
iexit | SELECT ih.name, ih.thepath, interpt_pp(ih.thepath, r.thepath) AS exit FROM ihighway ih, ramp r WHERE (ih.thepath ## r.thepath);
pg_indexes | SELECT c.relname AS tablename, i.relname AS indexname, pg_get_indexdef(x.indexrelid) AS indexdef FROM pg_index x, pg_class c, pg_class i WHERE ((((c.relkind = 'r'::"char") AND (i.relkind = 'i'::"char")) AND (c.oid = x.indrelid)) AND (i.oid = x.indexrelid));
- pg_rules | SELECT c.relname AS tablename, r.rulename, pg_get_ruledef(r.rulename) AS definition FROM pg_rewrite r, pg_class c WHERE ((r.rulename !~ '^_RET'::text) AND (c.oid = r.ev_class));
+ pg_rules | SELECT n.nspname AS schemaname, c.relname AS tablename, r.rulename, pg_get_ruledef(r.oid) AS definition FROM ((pg_rewrite r JOIN pg_class c ON ((c.oid = r.ev_class))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (r.rulename !~ '^_RET'::text);
pg_stat_activity | SELECT d.oid AS datid, d.datname, pg_stat_get_backend_pid(s.backendid) AS procpid, pg_stat_get_backend_userid(s.backendid) AS usesysid, u.usename, pg_stat_get_backend_activity(s.backendid) AS current_query FROM pg_database d, (SELECT pg_stat_get_backend_idset() AS backendid) s, pg_shadow u WHERE ((pg_stat_get_backend_dbid(s.backendid) = d.oid) AND (pg_stat_get_backend_userid(s.backendid) = u.usesysid));
pg_stat_all_indexes | SELECT c.oid AS relid, i.oid AS indexrelid, c.relname, i.relname AS indexrelname, pg_stat_get_numscans(i.oid) AS idx_scan, pg_stat_get_tuples_returned(i.oid) AS idx_tup_read, pg_stat_get_tuples_fetched(i.oid) AS idx_tup_fetch FROM pg_class c, pg_class i, pg_index x WHERE (((c.relkind = 'r'::"char") AND (x.indrelid = c.oid)) AND (x.indexrelid = i.oid));
pg_stat_all_tables | SELECT c.oid AS relid, c.relname, pg_stat_get_numscans(c.oid) AS seq_scan, pg_stat_get_tuples_returned(c.oid) AS seq_tup_read, sum(pg_stat_get_numscans(i.indexrelid)) AS idx_scan, sum(pg_stat_get_tuples_fetched(i.indexrelid)) AS idx_tup_fetch, pg_stat_get_tuples_inserted(c.oid) AS n_tup_ins, pg_stat_get_tuples_updated(c.oid) AS n_tup_upd, pg_stat_get_tuples_deleted(c.oid) AS n_tup_del FROM (pg_class c LEFT JOIN pg_index i ON ((c.oid = i.indrelid))) WHERE (c.relkind = 'r'::"char") GROUP BY c.oid, c.relname;
pg_stats | SELECT c.relname AS tablename, a.attname, s.stanullfrac AS null_frac, s.stawidth AS avg_width, s.stadistinct AS n_distinct, CASE WHEN (1 = s.stakind1) THEN s.stavalues1 WHEN (1 = s.stakind2) THEN s.stavalues2 WHEN (1 = s.stakind3) THEN s.stavalues3 WHEN (1 = s.stakind4) THEN s.stavalues4 ELSE NULL::"_text" END AS most_common_vals, CASE WHEN (1 = s.stakind1) THEN s.stanumbers1 WHEN (1 = s.stakind2) THEN s.stanumbers2 WHEN (1 = s.stakind3) THEN s.stanumbers3 WHEN (1 = s.stakind4) THEN s.stanumbers4 ELSE NULL::"_float4" END AS most_common_freqs, CASE WHEN (2 = s.stakind1) THEN s.stavalues1 WHEN (2 = s.stakind2) THEN s.stavalues2 WHEN (2 = s.stakind3) THEN s.stavalues3 WHEN (2 = s.stakind4) THEN s.stavalues4 ELSE NULL::"_text" END AS histogram_bounds, CASE WHEN (3 = s.stakind1) THEN s.stanumbers1[1] WHEN (3 = s.stakind2) THEN s.stanumbers2[1] WHEN (3 = s.stakind3) THEN s.stanumbers3[1] WHEN (3 = s.stakind4) THEN s.stanumbers4[1] ELSE NULL::float4 END AS correlation FROM pg_class c, pg_attribute a, pg_statistic s WHERE ((((c.oid = s.starelid) AND (c.oid = a.attrelid)) AND (a.attnum = s.staattnum)) AND has_table_privilege(c.oid, 'select'::text));
pg_tables | SELECT c.relname AS tablename, pg_get_userbyid(c.relowner) AS tableowner, c.relhasindex AS hasindexes, c.relhasrules AS hasrules, (c.reltriggers > 0) AS hastriggers FROM pg_class c WHERE ((c.relkind = 'r'::"char") OR (c.relkind = 's'::"char"));
pg_user | SELECT pg_shadow.usename, pg_shadow.usesysid, pg_shadow.usecreatedb, pg_shadow.usetrace, pg_shadow.usesuper, pg_shadow.usecatupd, '********'::text AS passwd, pg_shadow.valuntil, pg_shadow.useconfig FROM pg_shadow;
- pg_views | SELECT c.relname AS viewname, pg_get_userbyid(c.relowner) AS viewowner, pg_get_viewdef(c.relname) AS definition FROM pg_class c WHERE (c.relkind = 'v'::"char");
+ pg_views | SELECT n.nspname AS schemaname, c.relname AS viewname, pg_get_userbyid(c.relowner) AS viewowner, pg_get_viewdef(c.oid) AS definition FROM (pg_class c LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = 'v'::"char");
rtest_v1 | SELECT rtest_t1.a, rtest_t1.b FROM rtest_t1;
rtest_vcomp | SELECT x.part, (x.size * y.factor) AS size_in_cm FROM rtest_comp x, rtest_unitfact y WHERE (x.unit = y.unit);
rtest_vview1 | SELECT x.a, x.b FROM rtest_view1 x WHERE (0 < (SELECT count(*) AS count FROM rtest_view2 y WHERE (y.a = x.a)));
drop rule 314159;
-- no such rule
-drop rule nonesuch;
+drop rule nonesuch on noplace;
-- bad keyword
drop tuple rule nonesuch;
-- no such rule
-drop instance rule nonesuch;
+drop instance rule nonesuch on noplace;
-- no such rule
drop rewrite rule nonesuch;
insert into foo values(1001);
select * from foo;
-drop rule foorule;
+drop rule foorule on foo;
-- this should fail because f1 is not exposed for unqualified reference:
create rule foorule as on insert to foo where f1 < 100
select * from foo;
select * from foo2;
-drop rule foorule;
+drop rule foorule on foo;
drop table foo;
drop table foo2;
select * from vview;
select * from cchild;
-drop rule rrule;
+drop rule rrule on vview;
drop view vview;
drop table pparent;
drop table cchild;
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