Log Message:
-----------
Teach nodeSort and nodeMaterial to optimize out unnecessary overhead
when the passed-down eflags indicate they can.
Simon Riggs and Tom Lane
Modified Files:
--------------
pgsql/src/backend/executor:
nodeMaterial.c (r1.52 -> r1.53)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeMaterial.c.diff?r1=1.52&r2=1.53)
nodeSort.c (r1.54 -> r1.55)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeSort.c.diff?r1=1.54&r2=1.55)
pgsql/src/include/nodes:
execnodes.h (r1.147 -> r1.148)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/nodes/execnodes.h.diff?r1=1.147&r2=1.148)
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TIP 6: explain analyze is your friend
