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-rw-r--r--src/include/access/nbtree.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/src/include/access/nbtree.h b/src/include/access/nbtree.h
index acbb0cbc7d7..f3898a41408 100644
--- a/src/include/access/nbtree.h
+++ b/src/include/access/nbtree.h
@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/access/nbtree.h,v 1.128 2010/02/08 04:33:54 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/nbtree.h,v 1.129 2010/02/13 00:59:58 sriggs Exp $
*
*-------------------------------------------------------------------------
*/
@@ -221,6 +221,7 @@ typedef struct BTMetaPageData
#define XLOG_BTREE_DELETE_PAGE_HALF 0xB0 /* page deletion that makes
* parent half-dead */
#define XLOG_BTREE_VACUUM 0xC0 /* delete entries on a page during vacuum */
+#define XLOG_BTREE_REUSE_PAGE 0xD0 /* old page is about to be reused from FSM */
/*
* All that we need to find changed index tuple
@@ -322,6 +323,18 @@ typedef struct xl_btree_delete
#define SizeOfBtreeDelete (offsetof(xl_btree_delete, latestRemovedXid) + sizeof(TransactionId))
/*
+ * This is what we need to know about page reuse within btree.
+ */
+typedef struct xl_btree_reuse_page
+{
+ RelFileNode node;
+ BlockNumber block;
+ TransactionId latestRemovedXid;
+} xl_btree_reuse_page;
+
+#define SizeOfBtreeReusePage (sizeof(xl_btree_reuse_page))
+
+/*
* This is what we need to know about vacuum of individual leaf index tuples.
* The WAL record can represent deletion of any number of index tuples on a
* single index page when executed by VACUUM.