Make it possible to execute crashed CREATE/DROP commands again.

Now indexes of pg_class and pg_type are unique indexes
and guarantee the uniqueness of correponding attributes.
heap_create() was changed to take another boolean parameter
which allows to postpone the creation of disk file.
The name of rd_nonameunlinked was changed to rd_unlinked.
It is used generally(not only for noname relations) now.
Requires initdb.

5 files changed, 14 insertions, 12 deletions

diff --git a/src/include/catalog/catversion.h b/src/include/catalog/catversion.h
index 61756629082..7ac22873d1e 100644
--- a/src/include/catalog/catversion.h
+++ b/src/include/catalog/catversion.h
@@ -36,7 +36,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: catversion.h,v 1.1 1999/10/24 20:42:26 tgl Exp $
+ * $Id: catversion.h,v 1.2 1999/11/04 08:01:06 inoue Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -51,6 +51,6 @@
  * catalog changes on the same day...)
  */
 
-#define CATALOG_VERSION_NO	199910241
+#define CATALOG_VERSION_NO	199911041
 
 #endif
diff --git a/src/include/catalog/heap.h b/src/include/catalog/heap.h
index 1cb86b501c7..9d311038cbd 100644
--- a/src/include/catalog/heap.h
+++ b/src/include/catalog/heap.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: heap.h,v 1.24 1999/10/26 03:12:37 momjian Exp $
+ * $Id: heap.h,v 1.25 1999/11/04 08:01:04 inoue Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -23,7 +23,8 @@ typedef struct RawColumnDefault
 
 extern Oid RelnameFindRelid(char *relname);
 extern Relation heap_create(char *relname, TupleDesc att,
-			    bool isnoname, bool istemp);
+			    bool isnoname, bool istemp, bool storage_create);
+extern bool heap_storage_create(Relation rel);
 
 extern Oid heap_create_with_catalog(char *relname, TupleDesc tupdesc, 
 				    char relkind, bool istemp);
diff --git a/src/include/catalog/indexing.h b/src/include/catalog/indexing.h
index e39ce1c62d2..5d3d34e876f 100644
--- a/src/include/catalog/indexing.h
+++ b/src/include/catalog/indexing.h
@@ -7,7 +7,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: indexing.h,v 1.27 1999/11/01 04:00:57 momjian Exp $
+ * $Id: indexing.h,v 1.28 1999/11/04 08:01:06 inoue Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -119,11 +119,11 @@ DECLARE_INDEX(pg_index_indexrelid_index on pg_index using btree(indexrelid oid_o
 DECLARE_INDEX(pg_proc_oid_index on pg_proc using btree(oid oid_ops));
 DECLARE_INDEX(pg_proc_proname_narg_type_index on pg_proc using btree(proname name_ops, pronargs int2_ops, proargtypes oid8_ops));
 
-DECLARE_INDEX(pg_type_oid_index on pg_type using btree(oid oid_ops));
-DECLARE_INDEX(pg_type_typname_index on pg_type using btree(typname name_ops));
+DECLARE_UNIQUE_INDEX(pg_type_oid_index on pg_type using btree(oid oid_ops));
+DECLARE_UNIQUE_INDEX(pg_type_typname_index on pg_type using btree(typname name_ops));
 
-DECLARE_INDEX(pg_class_oid_index on pg_class using btree(oid oid_ops));
-DECLARE_INDEX(pg_class_relname_index on pg_class using btree(relname name_ops));
+DECLARE_UNIQUE_INDEX(pg_class_oid_index on pg_class using btree(oid oid_ops));
+DECLARE_UNIQUE_INDEX(pg_class_relname_index on pg_class using btree(relname name_ops));
 
 DECLARE_INDEX(pg_attrdef_adrelid_index on pg_attrdef using btree(adrelid oid_ops));
 
diff --git a/src/include/postgres.h b/src/include/postgres.h
index ddc84007332..0beb504d388 100644
--- a/src/include/postgres.h
+++ b/src/include/postgres.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1995, Regents of the University of California
  *
- * $Id: postgres.h,v 1.28 1999/10/25 03:07:55 tgl Exp $
+ * $Id: postgres.h,v 1.29 1999/11/04 08:01:07 inoue Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -138,6 +138,7 @@ typedef uint32 CommandId;
 #define DATA(x) extern int errno
 #define DESCR(x) extern int errno
 #define DECLARE_INDEX(x) extern int errno
+#define DECLARE_UNIQUE_INDEX(x) extern int errno
 
 #define BUILD_INDICES
 #define BOOTSTRAP
diff --git a/src/include/utils/rel.h b/src/include/utils/rel.h
index 308f9a6d645..28ea74c5e2b 100644
--- a/src/include/utils/rel.h
+++ b/src/include/utils/rel.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: rel.h,v 1.27 1999/09/29 16:06:28 wieck Exp $
+ * $Id: rel.h,v 1.28 1999/11/04 08:01:09 inoue Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -78,7 +78,7 @@ typedef struct RelationData
 	bool		rd_myxactonly;	/* rel uses the local buffer mgr */
 	bool		rd_isnailed;	/* rel is nailed in cache */
 	bool		rd_isnoname;	/* rel has no name */
-	bool		rd_nonameunlinked;		/* noname rel already unlinked */
+	bool		rd_unlinked;	/* rel already unlinked or not created yet */
 	Form_pg_am	rd_am;			/* AM tuple */
 	Form_pg_class rd_rel;		/* RELATION tuple */
 	Oid			rd_id;			/* relation's object id */