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Distinguish XLOG_FPI records generated for hint-bit updates.

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Add a new XLOG_FPI_FOR_HINT record type, and use that for full-page images
generated for hint bit updates, when checksums are enabled. The new record
type is replayed exactly the same as XLOG_FPI, but allows them to be tallied
separately e.g. in pg_xlogdump.
This commit is contained in:
Heikki Linnakangas
2014-11-24 10:43:32 +02:00
parent e2dc3f5772
commit 0bd624d63b
5 changed files with 19 additions and 10 deletions
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2
src/backend/access/transam/xloginsert.c
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@ -786,7 +786,7 @@ XLogSaveBufferForHint(Buffer buffer, bool buffer_std)
BufferGetTag(buffer, &rnode, &forkno, &blkno);
XLogRegisterBlock(0, &rnode, forkno, blkno, copied_buffer, flags);
recptr = XLogInsert(RM_XLOG_ID, XLOG_FPI);
recptr = XLogInsert(RM_XLOG_ID, XLOG_FPI_FOR_HINT);
}
return recptr;