Log Message:
-----------
Fix LIMIT/OFFSET for null limit values. This worked before 8.2 but was broken
by the change to make limit values int8 instead of int4. (Specifically, you
can do DatumGetInt32 safely on a null value, but not DatumGetInt64.) Per
bug #2803 from Greg Johnson.
Modified Files:
--------------
pgsql/src/backend/executor:
nodeLimit.c (r1.27 -> r1.28)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeLimit.c.diff?r1=1.27&r2=1.28)
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