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Move log_newpage and log_newpage_buffer to xlog.c.

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log_newpage is used by many indexams, in addition to heap, but for
historical reasons it's always been part of the heapam rmgr. Starting with
9.3, we have another WAL record type for logging an image of a page,
XLOG_FPI. Simplify things by moving log_newpage and log_newpage_buffer to
xlog.c, and switch to using the XLOG_FPI record type.

Bump the WAL version number because the code to replay the old HEAP_NEWPAGE
records is removed.
This commit is contained in:
Heikki Linnakangas
2014-07-31 16:48:43 +03:00
parent f51ead09df
commit 54685338e3
15 changed files with 139 additions and 225 deletions
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19
src/include/access/heapam_xlog.h
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@ -32,7 +32,7 @@
#define XLOG_HEAP_UPDATE 0x20
/* 0x030 is free, was XLOG_HEAP_MOVE */
#define XLOG_HEAP_HOT_UPDATE 0x40
#define XLOG_HEAP_NEWPAGE 0x50
/* 0x050 is free, was XLOG_HEAP_NEWPAGE */
#define XLOG_HEAP_LOCK 0x60
#define XLOG_HEAP_INPLACE 0x70
@ -239,20 +239,6 @@ typedef struct xl_heap_cleanup_info
#define SizeOfHeapCleanupInfo (sizeof(xl_heap_cleanup_info))
/* This is for replacing a page's contents in toto */
/* NB: this is used for indexes as well as heaps */
typedef struct xl_heap_newpage
{
RelFileNode node;
ForkNumber forknum;
BlockNumber blkno; /* location of new page */
uint16 hole_offset; /* number of bytes before "hole" */
uint16 hole_length; /* number of bytes in "hole" */
/* entire page contents (minus the hole) follow at end of record */
} xl_heap_newpage;
#define SizeOfHeapNewpage (offsetof(xl_heap_newpage, hole_length) + sizeof(uint16))
/* flags for infobits_set */
#define XLHL_XMAX_IS_MULTI 0x01
#define XLHL_XMAX_LOCK_ONLY 0x02
@ -393,8 +379,5 @@ extern void heap_execute_freeze_tuple(HeapTupleHeader tuple,
xl_heap_freeze_tuple *xlrec_tp);
extern XLogRecPtr log_heap_visible(RelFileNode rnode, Buffer heap_buffer,
Buffer vm_buffer, TransactionId cutoff_xid);
extern XLogRecPtr log_newpage(RelFileNode *rnode, ForkNumber forkNum,
BlockNumber blk, Page page, bool page_std);
extern XLogRecPtr log_newpage_buffer(Buffer buffer, bool page_std);
#endif /* HEAPAM_XLOG_H */