Thread: pgsql: Fix longstanding bug found by Atsushi Ogawa: _bt_check_unique

Log Message:
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Fix longstanding bug found by Atsushi Ogawa: _bt_check_unique would mark
the wrong buffer dirty when trying to kill a dead index entry that's on
a page after the one it started on.  No risk of data corruption, just
inefficiency, but still a bug.

Tags:
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REL8_0_STABLE

Modified Files:
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    pgsql/src/backend/access/nbtree:
        nbtinsert.c (r1.119 -> r1.119.4.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/nbtree/nbtinsert.c.diff?r1=1.119&r2=1.119.4.1)