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authorHeikki Linnakangas2012-06-24 15:51:37 +0000
committerHeikki Linnakangas2012-06-24 16:19:45 +0000
commit0ab9d1c4b31622e9176472b4276f3e9831e3d6ba (patch)
treeb8e9e5337338ba3010e00af50e1a33adb906a212 /src/include/access/transam.h
parent061e7efb1b4c5b8a5d02122b7780531b8d5bf23d (diff)
Replace XLogRecPtr struct with a 64-bit integer.
This simplifies code that needs to do arithmetic on XLogRecPtrs. To avoid changing on-disk format of data pages, the LSN on data pages is still stored in the old format. That should keep pg_upgrade happy. However, we have XLogRecPtrs embedded in the control file, and in the structs that are sent over the replication protocol, so this changes breaks compatibility of pg_basebackup and server. I didn't do anything about this in this patch, per discussion on -hackers, the right thing to do would to be to change the replication protocol to be architecture-independent, so that you could use a newer version of pg_receivexlog, for example, against an older server version.
Diffstat (limited to 'src/include/access/transam.h')
-rw-r--r--src/include/access/transam.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/src/include/access/transam.h b/src/include/access/transam.h
index 937386575b6..228f6a12c36 100644
--- a/src/include/access/transam.h
+++ b/src/include/access/transam.h
@@ -139,10 +139,6 @@ extern bool TransactionStartedDuringRecovery(void);
/* in transam/varsup.c */
extern PGDLLIMPORT VariableCache ShmemVariableCache;
-/* in transam/transam.c */
-extern const XLogRecPtr InvalidXLogRecPtr;
-
-
/*
* prototypes for functions in transam/transam.c
*/