fixing regressions#2322

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fjy merged 2 commits intoapache:masterfrom

himanshug:fix_regression

Jan 22, 2016

Commits on Jan 22, 2016

older segments might not have field bitmapSerdeFactory for dimension columns and we must use appropriate default
himanshug
committed
adding null aggregators and false hasMultipleValues to expected results of segment metadata query
himanshug
committed