postgrespro.git / summary / log / commit / refs

commit    addd034ae1795d0a99305b294e4dce44c6b1dfd8
Author:   Michael Paquier <michael@paquier.xyz>
Date:     Thu Mar 05 23:15:29 2020 +0000

    Fix page-level checksum calculation in checksum_impl.h
    
    Issue introduced by me, as of 0065174.
    
    Reported-by: David Steele
    Discussion: https://postgr.es/m/1cf30561-7dad-dc6e-9fc3-5c456948cfeb@pgmasters.net


 src/include/storage/checksum_impl.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/include/storage/checksum_impl.h b/src/include/storage/checksum_impl.h
index 2f81cdf5b5..364acfafd2 100644
--- a/src/include/storage/checksum_impl.h
+++ b/src/include/storage/checksum_impl.h
@@ -211,5 +211,5 @@ pg_checksum_page(char *page, BlockNumber blkno)
 	 * Reduce to a uint16 (to fit in the pd_checksum field) with an offset of
 	 * one. That avoids checksums of zero, which seems like a good idea.
 	 */
-	return (uint16) ((checksum % 65536) + 1);
+	return (uint16) ((checksum % 65535) + 1);
 }


[parent: bb03010b9f07]