Add WAL logging for CREATE/DROP DATABASE and CREATE/DROP TABLESPACE.

Fix TablespaceCreateDbspace() to be able to create a dummy directory
in place of a dropped tablespace's symlink.  This eliminates the open
problem of a PANIC during WAL replay when a replayed action attempts
to touch a file in a since-deleted tablespace.  It also makes for a
significant improvement in the usability of PITR replay.

1 files changed, 23 insertions, 6 deletions

diff --git a/src/include/commands/tablespace.h b/src/include/commands/tablespace.h
index 42093c51505..8aba919ab3a 100644
--- a/src/include/commands/tablespace.h
+++ b/src/include/commands/tablespace.h
@@ -1,32 +1,49 @@
 /*-------------------------------------------------------------------------
  *
  * tablespace.h
- *	  prototypes for tablespace.c.
+ *		Tablespace management commands (create/drop tablespace).
  *
  *
  * Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/commands/tablespace.h,v 1.3 2004/07/11 19:52:52 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/commands/tablespace.h,v 1.4 2004/08/29 21:08:47 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
 #ifndef TABLESPACE_H
 #define TABLESPACE_H
 
+#include "access/xlog.h"
 #include "nodes/parsenodes.h"
 
-extern void CreateTableSpace(CreateTableSpaceStmt *stmt);
+/* XLOG stuff */
+#define XLOG_TBLSPC_CREATE		0x00
+#define XLOG_TBLSPC_DROP		0x10
+
+typedef struct xl_tblspc_create_rec
+{
+	Oid			ts_id;
+	char		ts_path[1];		/* VARIABLE LENGTH STRING */
+} xl_tblspc_create_rec;
+
+typedef struct xl_tblspc_drop_rec
+{
+	Oid			ts_id;
+} xl_tblspc_drop_rec;
 
+extern void CreateTableSpace(CreateTableSpaceStmt *stmt);
 extern void DropTableSpace(DropTableSpaceStmt *stmt);
+extern void RenameTableSpace(const char *oldname, const char *newname);
+extern void AlterTableSpaceOwner(const char *name, AclId newOwnerSysId);
 
 extern void TablespaceCreateDbspace(Oid spcNode, Oid dbNode, bool isRedo);
 
 extern Oid	get_tablespace_oid(const char *tablespacename);
-
 extern char *get_tablespace_name(Oid spc_oid);
 
-extern void RenameTableSpace(const char *oldname, const char *newname);
-extern void AlterTableSpaceOwner(const char *name, AclId newOwnerSysId);
+extern void tblspc_redo(XLogRecPtr lsn, XLogRecord *rptr);
+extern void tblspc_undo(XLogRecPtr lsn, XLogRecord *rptr);
+extern void tblspc_desc(char *buf, uint8 xl_info, char *rec);
 
 #endif   /* TABLESPACE_H */