apache/incubator-flink — pull request #146 by fhueske (2014-10-09 14:16:51+00:00)
Title: [FLINK-1150] Fix output size estimate of FilterNode.

FilterNode implicitly sets the estimated output size to unknown (-1) while adjusting the cardinality by a factor of 0.5.
This fix changes the estimated output size proportional to cardinality.