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Inheritance overhaul by Chris Bitmead <chris@bitmead.com>

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This commit is contained in:
Bruce Momjian
2000-06-09 01:44:34 +00:00
parent fb070464c1
commit 8c1d09d591
32 changed files with 484 additions and 204 deletions
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46
src/backend/commands/creatinh.c
View File

@@ -8,7 +8,11 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/creatinh.c,v 1.58 2000/05/30 00:49:43 momjian Exp $
<<<<<<< creatinh.c
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/creatinh.c,v 1.59 2000/06/09 01:44:03 momjian Exp $
=======
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/creatinh.c,v 1.59 2000/06/09 01:44:03 momjian Exp $
>>>>>>> 1.58
*
*-------------------------------------------------------------------------
*/
@@ -34,6 +38,9 @@ static bool checkAttrExists(const char *attributeName,
const char *attributeType, List *schema);
static List *MergeAttributes(List *schema, List *supers, List **supconstr);
static void StoreCatalogInheritance(Oid relationId, List *supers);
static void
setRelhassubclassInRelation(Oid relationId, bool relhassubclass);
/* ----------------------------------------------------------------
* DefineRelation
@@ -326,6 +333,7 @@ MergeAttributes(List *schema, List *supers, List **supconstr)
TupleConstr *constr;
relation = heap_openr(name, AccessShareLock);
setRelhassubclassInRelation(relation->rd_id, true);
tupleDesc = RelationGetDescr(relation);
constr = tupleDesc->constr;
@@ -660,3 +668,39 @@ checkAttrExists(const char *attributeName, const char *attributeType, List *sche
}
return false;
}
static void
setRelhassubclassInRelation(Oid relationId, bool relhassubclass)
{
Relation relationRelation;
HeapTuple tuple;
Relation idescs[Num_pg_class_indices];
/*
* Lock a relation given its Oid. Go to the RelationRelation (i.e.
* pg_relation), find the appropriate tuple, and add the specified
* lock to it.
*/
relationRelation = heap_openr(RelationRelationName, RowExclusiveLock);
tuple = SearchSysCacheTuple(RELOID,
ObjectIdGetDatum(relationId),
0, 0, 0)
;
Assert(HeapTupleIsValid(tuple));
((Form_pg_class) GETSTRUCT(tuple))->relhassubclass = relhassubclass;
heap_update(relationRelation, &tuple->t_self, tuple, NULL);
/* keep the catalog indices up to date */
CatalogOpenIndices(Num_pg_class_indices, Name_pg_class_indices, idescs);
CatalogIndexInsert(idescs, Num_pg_class_indices, relationRelation, tuple
);
CatalogCloseIndices(Num_pg_class_indices, idescs);
heap_close(relationRelation, RowExclusiveLock);
}

52
src/backend/commands/variable.c
View File

@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/variable.c,v 1.35 2000/05/31 00:28:15 petere Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/variable.c,v 1.36 2000/06/09 01:44:03 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -49,7 +49,12 @@ static bool parse_XactIsoLevel(char *);
static bool parse_random_seed(char *);
static bool show_random_seed(void);
static bool reset_random_seed(void);
static bool parse_examine_subclass(char *);
static bool show_examine_subclass(void);
static bool reset_examine_subclass(void);
#define examine_subclass_default true
bool examine_subclass = examine_subclass_default;
/*
* get_token
@@ -164,6 +169,44 @@ get_token(char **tok, char **val, char *str)
return str;
}
/*
*
* EXAMINE_SUBCLASS
*
*/
#define EXAMINE_SUBCLASS "EXAMINE_SUBCLASS"
static bool
parse_examine_subclass(char *value)
{
if (strcasecmp(value, "on") == 0)
examine_subclass = true;
else if (strcasecmp(value, "off") == 0)
examine_subclass = false;
else if (strcasecmp(value, "default") == 0)
examine_subclass = examine_subclass_default;
else
elog(ERROR, "Bad value for %s (%s)", EXAMINE_SUBCLASS, value);
return TRUE;
}
static bool
show_examine_subclass()
{
if (examine_subclass)
elog(NOTICE, "%s is ON", EXAMINE_SUBCLASS);
else
elog(NOTICE, "%s is OFF", EXAMINE_SUBCLASS);
return TRUE;
}
static bool
reset_examine_subclass(void)
{
examine_subclass = examine_subclass_default;
return TRUE;
}
/*
* DATE_STYLE
@@ -545,6 +588,8 @@ SetPGVariable(const char *name, const char *value)
#endif
else if (strcasecmp(name, "random_seed")==0)
parse_random_seed(pstrdup(value));
else if (strcasecmp(name, "examine_subclass")==0)
parse_examine_subclass(pstrdup(value));
else
SetConfigOption(name, value, superuser() ? PGC_SUSET : PGC_USERSET);
}
@@ -567,6 +612,8 @@ GetPGVariable(const char *name)
#endif
else if (strcasecmp(name, "random_seed")==0)
show_random_seed();
else if (strcasecmp(name, "examine_subclass")==0)
show_examine_subclass();
else
{
const char * val = GetConfigOption(name, superuser());
@@ -574,7 +621,6 @@ GetPGVariable(const char *name)
}
}
void
ResetPGVariable(const char *name)
{
@@ -592,6 +638,8 @@ ResetPGVariable(const char *name)
#endif
else if (strcasecmp(name, "random_seed")==0)
reset_random_seed();
else if (strcasecmp(name, "examine_subclass")==0)
reset_examine_subclass();
else
SetConfigOption(name, NULL, superuser() ? PGC_SUSET : PGC_USERSET);
}