Commit the reasonably uncontroversial parts of J.R. Nield's PITR patch, to

wit: Add a header record to each WAL segment file so that it can be reliably
identified.  Avoid splitting WAL records across segment files (this is not
strictly necessary, but makes it simpler to incorporate the header records).
Make WAL entries for file creation, deletion, and truncation (as foreseen but
never implemented by Vadim).  Also, add support for making XLOG_SEG_SIZE
configurable at compile time, similarly to BLCKSZ.  Fix a couple bugs I
introduced in WAL replay during recent smgr API changes.  initdb is forced
due to changes in pg_control contents.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/include/storage/smgr.h b/src/include/storage/smgr.h
index 738e436fb7d..41367d35e81 100644
--- a/src/include/storage/smgr.h
+++ b/src/include/storage/smgr.h
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/storage/smgr.h,v 1.40 2004/02/10 01:55:26 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/storage/smgr.h,v 1.41 2004/02/11 22:55:26 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -61,6 +61,7 @@ extern void smgrwrite(SMgrRelation reln, BlockNumber blocknum, char *buffer);
 extern BlockNumber smgrnblocks(SMgrRelation reln);
 extern BlockNumber smgrtruncate(SMgrRelation reln, BlockNumber nblocks);
 extern void smgrDoPendingDeletes(bool isCommit);
+extern int	smgrGetPendingDeletes(bool forCommit, RelFileNode **ptr);
 extern void smgrcommit(void);
 extern void smgrabort(void);
 extern void smgrsync(void);